Co. Profile of ISMS Services Pte Ltd

ISMS Services Pte Ltd with its pioneering achievements in supplying air compressor spare parts, has again succeeded in taking on the most demanding challenges and milestones in the marine industry through expansion of its product portfolio..

With more than a decade of providing air compressor spare parts to vessels worldwide, we continue to supply quality and cost efficient equipment to our customers in the marine industry.

Working together with our customers remains our core emphasis. By understanding our customers’ needs, ISMS is capable of delivering products and services to the customers’ expectation.

ISMS Services Pte Ltd has been entrusted by well known manufacturers to be the authorized agent for a range of products of high quality, efficient in performance and effective in application.

We are committed to build on this trust as a reliable partner by offering unmatched expertise and innovation to our valued customers.

Fresh Water Generator

LZ FRESH WATER GENERATOR

AFGU type Fresh water generator is operated by the Vacuum Vapour Evaporating Principle.

After the unit is used on board, fresh water storage on board can be reduced and carrying capacity of the cargo is greatly increase.

Features and Benefits

• Capable of producing of 1.5 – 50 tons of water/day depends on different specification.
• Consist of evaporator & condenser section.
• Uses jacket cooling water to evaporate sea water under high vacuum and produce high purified fresh water
• Major class approved.

Contact Us

No. 15 Tukang Innovation Drive

Singapore 618299

Office Tel: +65 6597 3888

Office Fax: +65 6597 3790

E-mail: info@isms.com.sg

Profile on NSK Heat Exchangers Pte Ltd

We are the designer, manufacturer and exporter of Shell and Tube type Heat Exchanger, Pressure Vessels and related Heat Transfer Devices and engineered to meet a wide variety of applications, our manufactured products are mostly used in Refineries, Chemical and Process plants.

We are well versed with Design of process equipment by using latest design tools to produce Thermal & Mechanical Calculations and manufacture in accordance with ASME, API, TEMA and other international codes.

We follow international quality standards and carefully inspect our products to ensure that each of our product performs regularly without any problem. Being a customer-care Company, we never compromise on quality and use advanced research activities to solve the problems faced during production process. Experienced supervision personnel.

We are authorized to Design and Manufacturing of ASME "U" Stamp equipment and Repairing and alteration to use "R" Stamp in accordance with the provision of National Board.

We can conveniently deliver our products that exactly fulfill our client's requirements and applications. We offer exceptional service to our customers throughout the globe and are committed towards a reliable delivery of our products within a stipulated time frame. We have a well equipped state-of-the-art production unit and have a perfect combination of technology and manpower which has enabled us to manufacture the best in the industry.

We are a customer oriented company and believe in producing products that can satisfy needs and delight our valuable customers. We are the one-stop platform with widest range of premium quality products that are widely used in various industries. We also manufacture our equipment as per the specifications given by our valued customers.

Our range of Products includes:

• Shell & Tube Heat Exchangers
• Fin Fan Coolers.
• Pressure Vessels
• Re-tubing and Servicing of Heat Exchangers
• Heat Exchangers Parts Supply ( Channel Cover, FH Assy, Test Ring )
• SKID Package system
• Pig Launchers & Receivers
• Special Material Fabrication ( Duplex, Super Duplex, Hastelloy, Inconel, Monel etc..)

Contact Us

49B Tuas South Avenue 1

Tuas Cove Industrial Centre

Singapore – 637252

Tel : 6863 4930

Fax : 6863 4935

E-mail : noor@nskheat.com.sg or sk@nskheat.com.sg

We are also inviting companies who are interested to work with us an agent for regions like Europe, USA, Japan,Thailand, Middle East

What are the benefits for your business to invest in manufactured oil coolers?

It can be assumed that most people do not understand a great deal about specially designed oil coolers, which perhaps tells you why many of the businesses are reluctant to fully embrace the technology.

This can lead to greater problems and cost you money as over time the incorrect way of cooling large machinery can equate to serious damage, which can cost a company a lot of money to fix.
Therefore if your firm does not use oil coolers which are manufactured then here are things you may like to take into consideration.



1) For starters, if your firm uses transformers then you will understand that if it is too hot a lot of damage can be done. If the winding hot spot temperature of your transformer reaches critical levels, the transformer can prematurely fail because of the excessive heat. Remember that the installation of a cooling system means the load capacity of a transformer can improve its ability by demonstrating growth to release the heat which is created by the heat.

2) It is always useful to have background information of what is on offer regarding systems. There are two basic designs for oil coolers, the tube-and-fin style coolers and the stacked plate coolers:

- With tube-and-fin style coolers, heat produced by the engine is extracted through the tubes and carried to the fins, where it will be absorbed by the air flowing from the cooler. However, there can be a high amount of random results which does give a small improvement regarding the overall efficiency relating to the cooler.

- However, the stacked plate cooler disperses heat by letting oil flow into different passages inside the stacked plates. Stacked style coolers are made to cool the oil through allowing air to flow, however due to the elements being stacked so close they inhibit air flow in the cooler.

However, it all depends on your personal circumstances as to which option is the right one for your specific machinery.

3) If your car has an oil immersed transformer then you have two major options. These are:
- Oil immersed natural cooling. This system keeps the core and windings submerged in oil and the transformer is cooled down by the natural circulation of this oil. Additional cooling can be provided by radiators, which increases the surface area over which a large transformer can dissipate heat.

- Oil immersed water cooling. With these systems the transformer is cooled by an internal coil which allows water to flow through. However, this method is only feasible if you have an easily accessible water source, which is usually not the case, which explains the increasing shift towards the natural cooling method.

4) If you do purchase an oil cooler then it is important that you oil the bearings regularly, as oiling and inspecting your cooler bearings can save you a lot of money and time. This should really be done at least once a year for casual use, or many times a year for more regular use.

Hopefully, the tips in this article should help you to ensure that your machinery should be operational for a much greater length of time and your company will save a great deal of money.

Versatility of Tubing Plugs

Plugs can come in many forms for the myriad of uses in any household or industry. There are also many commercial applications which make use of plugs. There are tubing plugs, plastic or PVC plugs, vinyl plugs or metal plugs.

Almost all applications today would need some type of plug for safety and longer lasting functioning of the equipment in an application. Although there are currently 10,000 standard plug products in stock, more are designed and manufactured to fit the changing lifestyle of today with the progressive technology that is sweeping the world.

Range of tubing

Plugs can be of tubing form to fit the application like a glove to the hand; banjo union tube plugs are shaped like the banjo to provide a nicer fit. There are plugs for propane cylinder valves, barrels, packaging tubes and other types of components in various environments.

These plugs can come in various sizes, shapes, colors and designs that are functional as well as aesthetically pleasing. Tubing plugs are meant to protect equipment from pollutants like dust, debris, dirt or moisture anytime; whether in a stable condition like the warehouse or transit condition as in shipping and delivery. Sometimes they are called dust plugs, closures, protective tube switchs or end plugs.

Tubing switchs can be center pulled focus, side pulled focus, tapered, threaded or packaged. It depends on the application and budget of the consumer.


Special tubal switch

The TPR flangeless tubal switchs are tapered in design made of black thermoplastic rubber which can withstand high temperatures up to 300°F (149°C). This tubing plug is designed to protect threaded or unthreaded holes effectively without the need to mask the surrounding areas. These are ergonomically friendly plugs that can be easily installed or removed. Such tubing plugs are favored where resistance is high.

Tubing finned plugs are another special type of industrial plug that allow a tight fitting in any application to avoid dirt or debris to get into the tubing. Copper or aluminum material is usually used in this type of L & M tubing finned switchs which are made of low density polyethylene. They have a small unobtrusive tab for pulling which is ideal for thin walled tubing.

Side pull switchs have an integral side pull tab which is ideal for easy removal at difficult or awkward positions. Its tapered design makes plugging in easy for various inner diameters. Hence, this is a useful plug to stock for multiple diameter components in any application.

You can read more about fin tube here.

Pipe Label Making Made Easy With Pipe Marking Printer

 

Producing labels for nearly any software is usually fairly arduous if you are even now utilizing a term processor to supply labels and even an regular printer to print them out. Now label printing is becoming pretty very easy employing the condition-of-the-art, label ink jet printers at sensible charges. Printing labels happens to be as hassle-free as coming into the knowledge and pressing several buttons to the label printer. A person kind of industrial label printer is pipe marking printer exactly where it is actually an authority for creating pipe markers. Pipe marking ink jet printers be able to print on cardstock, self-adhesive labels as well as other components. How they change from normal ink jet printers is they use unique feed systems to handle tear sheets or folded stock. These ink jet printers have a smallish sensor which is able to discover notches, perforations or lines concerning labels, notches or gaps, when utilizing continuous label stock to print on. This prevents paper place from shifting and guarantees the print hits the potential space making it possible for the label printer modify and align paper competently.

The pipe marking printer is really a first-class alternative for enormous scale facilities which have substantial piping devices. Factory, delivery centers, together with other much larger suppliers run to the value they receive by using their industrial labeling printer is just love to presenting interchangeable ink jet printers. Interchangeable printer can be a phrase use to check with people ink jet printers that can use for a variety of sorts print careers additionally to label earning. Companies that reap the benefits of people much larger ink jet printers regularly find that they be not capable to locate a couple of hrs regular to employee down-time because the stock is tough to regulate. There is minimal described down-time if this requires by means of industrial label ink jet printers. Quite a few massive providers are remarkably consuming to consideration the moveable industrial label ink jet printers simply because these have the ability to strike the manufacturing flooring.

In making utilization of pipe marking printer to print pipe markers it can be of your major goal to see the ANSI/ASME thirteen.one 2007 Pipe Marking Needs to possess the capacity to follow the most recent principles in pipe identification. Inside of the ANSI pipe marking wants will be the standard pallettes, label positions, and size labels. The tapes used in pipe marking are vinyl tapes best suited for indoor and outside the house which will very last to five-many a long time and will not fade simply nor smear when touched at printing. These pipe marking printer materials are developed for being h2o and chemical resistant so it supplies a superior the assurance in the strong and lengthy-lasting use. It is important that previous to ordering pipe marking printer it is easy to take a look at regardless of whether it options an user-friendly interface and suited for other Microsoft Term coupled with other prevalent word processing software programs.

Paying for a pipe marking printer may help a present-day business save at the same time revenue and time. Not simply just will possessing a pipe marking printer possess the capability to routine printing often easy to the establishments, it will eventually likewise possess the capability to have personnel comprehensive printing duties which ended up formerly outsourced. Lots of less expensive and high priced label ink jet printers are distributing on the net and even from the stores. Although not almost every a single is assured to provide you with all the output you simply expected. Determine only from nicely makes and sellers. Well-known producers get their title to threat throughout the products.

For more information, please visit: http://www.heatecholdings.com/

Know The Standard Way Before Applying Pipe Marking

A pipe marker is really a rather simple, but really necessary item. In essence, it's a label, decal or tag which is affixed to some pipe or pipe valve. You can get a few good reasons for visually marking the pipes that operate all over your facility. Any person which has ever planned or completed a home enhancement challenge will know that organization is amongst the most critical elements of the approach. Should the person endeavor the do it yourself challenge hasn't competently labeled and organized each of the goods they will desire ahead of time, they are going to obtain their selves having difficulties to complete the challenge although regularly wanting to discover materials and products to complete the work. That's why items these kinds of as pipe markings are so trendy, considering the fact that endeavoring to undertake a home development undertaking with unmarked pipes is almost continuously a catastrophe.



Most makes of pipe markings are rather identical in top quality so numerous makes belonging to the exact same item can have almost all of the very same characteristics. Some brands can be constructed of a marginally superior material or final for a longer time underneath specific situations, so it's always significant to decide on the one which is right for the customer's wants. The differences in between the manufacturers could be detailed in the exterior belonging to the offer to give the consumer the information at a glance. The costs for pipe markings can differ from retailer to retailer and from location to area. Some individuals think about the fee to be as well insignificant to worry about even though some others are constantly interested in one of the best deal for their hard earned cash. If customers have an interest in finding the right prices, they might want to evaluate cost and superior in between a few diverse retailers and make the choice determined by which retail outlet provides the top worth. To solidify your compliance when pipe marking a facility, the conventional supplies pipe marker visibility recommendations. In order to be certain that that you're compliant with all the ASME (ANSI) A13.1-2007 typical, there are many conclusions you will need to make: pipe marker design, marker dimension, selecting the best pipe marker colour to your application requirements together with pinpointing the quantity of markers needed to let for correct marker visibility.

The common suggests the pipes shall be marked adjacent to all valves and flanges also at either side for the flooring or wall penetrations. Additionally, pipes shall be marked adjacent to alterations in directions and every 25' to 50' intervals on straight runs. The appliance of pipe markers helps your employees to speedily and easily identify the plethora of pipes in your own facility. Probability are that your facility has in it any combination of pipes for very hot & cold water, steam, gases, refrigerants, heating fuels, sewage waste, returns and many more. Bad things can happen. Pipes can leak, freeze, break or rupture at any time. Harmful chemicals and gases operate through pipes, and in the event of the leak of rupture, will want to become identified and dealt with immediately. The use of pipe markers and valve tags lets maintenance employees or emergency personnel a quick way to determine the compromised pipe and take the appropriate actions.

It's vital not to base the choice of which type of pipe markings to use on a single bad review for the reason that many people can be dissatisfied with totally different product for several arguments. Some consumers do not follow the instructions properly though other folks may very well use the gadgets in situations that they are not recommended for. It is actually greatest to read a variety of varied reviews for each brand for being able to help make an objective decision as to which 1 provides the right worth for your revenue. There might possibly also be interesting reviews from the distinct types of pipe markings found on unique websites in the internet. There are actually particular websites about the internet that make it possible for average individuals to rate the products they purchase and some of these websites focus exclusively on pipes and pipe accessories. The reviews on these websites are the consumer's actual opinion about the product which they purchased.

The Uses of an Oil Cooler

There are different kinds of coolers that are available in the market at the moment. All of them are different from each other and their prices also tend to vary from model to model. When it comes to the important matter of purchasing an oil cooler, one must pay attention to all of its specifications. With a wide range of these coolers to choose from within the market, it is important to see which one is likely to perform the best. Not only are these coolers responsible for cooling down oil and many other liquids but they also come in handy in not only the short run, but the long run as well. The matter of price should be considered by everyone as the prices for different coolers of this kind are different. However, it completely depends on the kind of cooler one is going to buy in the first place.

Car Engines

A prominent reason for using an oil cooler is the fact that it is used for car engines. Since engines run on oil, most of the times, the oil is likely to heat up quickly as oil is one of those commodities that heat up rather quick always. Therefore, these coolers are used in order to cool that oil down in order for the engine to move properly and without any issue in the overall matter. Car engines need these coolers every now and then, which is precisely why all individuals have been highly recommended to invest in one of these coolers as they are quite handy and affordable, too. Car engines are fragile and can be damaged due to heat and sometimes the conditions go so bad that the entire engine needs replacement, thus causing a big budget issue.

Industrial Applications

On the other hand, these are heavily used in industrial applications as the need for cooling down oil arises a lot in heavy machinery in the present times. Therefore, an oil cooler is most definitely used in the machinery industry since these contain oil and that has everything to do with cooling down. Similarly, the oil industry uses these coolers on a day to day basis as they have large commodities of oil to deal with. The process of cooling down oil can be arduous and rather dangerous; therefore, proper means must be used for the purpose of doing this without facing any obstacles in the matter. Industries are run by using expensive equipment and when there are engines that cost owners thousands of dollars apiece, then they can never be too careful in taking care of them. Industrially used oil coolants are not the same as the ones used in domestic purposes. They are also relatively lot more expensive since they have got to last for long time and should be able to withstand the work pressure that the engines go through daily; long hours of work.

Lubrication

Another use for the oil cooler includes the lubrication of machinery. This is done by cooling down oil which can be too hot to be used in machinery, hence affecting the overall lubrication process. High end machinery needs lubrication every now and then for the purpose of functioning adequately. Therefore, these coolers are best to be used for that task as they seldom disappoint in cooling down hot oil in order to not only help machinery work better, but car engines as well for that matter. Super heated metal can cause fire to break out that does not only cost expensive piece of machinery but also poses a threat to the surrounding things and in case of industry can cause closure of work for days.

The All-New Fresh Water Generator

The newest fresh water generator to come out of Denmark has set the bar for innovation and technological advance. The best thing about the generator is that it does not need chemicals or any stimulants during the purification operation. The chemicals are mostly used to stop the salt and other particles from inhabiting the walls of the generator when they leave the water during purification. By using titanium plates and modules that use ultrasound, they have managed to make sure the salt does not stick to the generator.

The structure has been named ScaleGuard and is mostly used for about five minutes in one hour. The bubbles generated by the modules ae very small – almost microscopic – in size. However, they go into the hot surfaces on the generator and burst whenever they touch the sides, cleaning it at the same time as well. Through the brine, the deposits that would previously sit on the walls, are flushed out of the fresh water generator in a jiffy. The new technology has removed a lot of human effort from the process of purification of salt water that people on sea have to closely monitor.

The titanium plates (conical in structure) are said to be the most unique thing about the entire invention. The shape enables the sea water to disappear but it will also allow the modules to do their jobs correctly. There will be no corrosion problems as well as the new product is fully stainless steel. Another great thing about it is the fact that it is considered to be amongst the most user friendly innovations to ever come for a fresh water generator for a long time. The plates will not cause leakage when the generator is broken up for repairs and cleaning. The plates are placed parallel with the floor instead of standing upright so that the water trickled down. The reassembling becomes easier as well.

The new generator will not need days or even hours to install. The installation period will be over within a few minutes and can be done while the ship has docked on the bay. The unit is extremely easy to carry around as it does not weigh much and it also is designed to suit the designs already setup inside the ship. It can be done quite easily within a couple of hours and this is easily the time during which the ship may be changing passengers. In fact, it is bound to take longer for the ship to get ready for the journey than the time required to setup the new fresh water generator.

The generator now comes with a redesigned touchscreen display which allows smart and quick control of the appliance. The output is much higher than ever before and the generator guarantees to pelt out up to eighteen hundred gallons every day. The touch screen display is colored and the screen is wide enough to allow for proper browsing and control. The v4 control interface is amazingly helpful for people using the appliance as it is easy to manage and run. flushing time, starting time, output produced and other intuitive tasks are readily assigned with the help of the new generator.

The new generator has many automatic controls like positioning valves for brushing and cleaning, flushing out the junk accumulated overtime, backwashing time which forces the generator to stop when it needs to be cleaned and the like. There are many new and amazing features to look forward to when using the generator. However, since it is still new, it must be dealt with care and caution so that it lasts the journey. It is better to keep a customary backup – just in case. 

Advantages of Fin Fan Cooler

For everyone who is not aware of a fin fan cooler, it basically is responsible for carrying a wide range of different tasks in the matter of cooling. These have been used since a long period of time and can these days be found without having to face any sort of hindrances in the matter. This kind of cooler is different from all the other ones, which makes it unique and something that individuals should know about before investing in it. These are generally used in high end plants as well as oil refineries for the purpose of cooling down liquids, majorly water as well as oil.

High End Durability

The fin fan cooler fin fan cooler is exceptionally durable, which makes it last for a long period of time. Since these coolers do have a higher initial investment in comparison with everything else, it is important for them to be durable as only then can they stay stable and productive for a good while without having to deteriorate soon. These coolers have a long life and this truly is an advantage for people who are looking to install long-term coolers within plants and places such as that. Due to higher durability, the levels of reliability are also increased by a long shot.

Easy to Manage

These coolers are also known to increase the overall plant efficiency in general and that is precisely why they are being used in high end industrial applications in the present times. On the other hand, these coolers are completely environmentally friendly and that is undoubtedly one of the major reasons behind their success and high increase in usage in different parts of the world. They do not harm the external environment in any negative way, which gives people more than enough reason for having them installed within their plants or anywhere else where they are needed in both the short as well as the long run.

Industrial Usage

The fin fan cooler is majorly responsible for cooling down different kinds of liquids within a plant. These are used in plants in general, which is where people can make most use of them due to the fact that they can cool down not only water, but also other types of liquids such as oil and much more without wasting a lot of time in the matter. As a very prominently used heat exchanger, these coolers provide high end heat efficiency rates which are hard to attain from any other equipment in general.

Low Energy Costs

A fin fan cooler require low energy to run and this is beneficial on so many levels. With equipment and devices that require high end energy for running, the power bills can be quite high in both the short as well as the long run. With these coolers, people end up acquiring low energy costs, which enables them to save a good amount of money in the near future. Since saving money is definitely an important thing to do, investing in these coolers is something that all individuals should know about.

Affordable Price Range

The prices of the fin fan cooler are different as it all depends on the type it is. There are several types, all of which are important in their own way and have their own advantages. People can choose whichever they prefer or the one that fulfills all of their needs in general. Prices are going to vary from model to model and they also heavily depend on the brand of the cooler. Upon deciding the best model as well as the brand, buying the one that has been reasonably priced is something that all interested buyers should do as these really do come in handy in the near future.

How Heat Exchanger can Reduce Thermal Pollution

In order to reduce thermal pollution in a lake, a heat exchanger will be used to reduce the output temperature of the coolant water discharge at an industrial facility.  The heat exchanger is to cool the discharge water from 100° F to 65° F.  The mass flow rate of the discharge water to be cooled in the heat exchanger is 50,000 lbm/hr.

Although a wide variety of heat exchanger designs are available for such applications, consider two common heat exchanger designs; a water-cooled shell and tube heat exchanger, and an extended surface (finned) air cooler.  Assume that the water and air on the cold side of both heat exchangers is initially at 50° F.

Prepare a report detailing your design.  This report should include the following information:

1. Size of the required shell and tube heat exchanger (number of tubes, number of passes, shell diameter, tube diameter, tube length, etc.).

1. Size of the required air-cooler (number of tubes, type and configuration of external fins, u-bundle tube diameters, tube length, etc.).  Assume natural convection on the air side of the exchanger.

1. Estimates of the effectiveness (e), the NTUs, and the overall heat transfer coefficient for each heat exchanger.

1. A recommendation of the heat exchanger design your group believes to be the best for the situation, including a list of reasons justifying your recommendation.  (This will count as a significant portion of the project grade and should not be treated trivially.)

Make use of the heat exchanger design literature that I have given your group, along with that available in the library, as it will greatly reduce the amount of effort required to complete this project.  Carefully reference all sources of information you used during the design and analysis in your report.

What is an Oil Cooler anyway?

Oil cooling is the use of oil as a coolant, typically to remove surplus heat from an internal combustion engine. The hot engine transfers heat to the oil which then usually passes through a heat-exchanger, typically a type of radiator known as an oil cooler. The cooled oil flows back into the hot object to cool it continuously.

Oil cooling is commonly used to cool high-performance motorcycle engines that are not water-cooled. Typically, the cylinder barrel remains air-cooled in the traditional motorcycle fashion, but the cylinder head benefits from additional cooling. As there is already an oil circulation system available for lubrication, this oil is also piped to the cylinder head and used as a liquid coolant. Compared to an oil system used solely for lubrication, oil cooling requires additional oil capacity, a greater flow rate through the oil pump, and an oil cooler (or a larger cooler than normal).

If air-cooling proves sufficient for much of the running time (such as for an aero-engine in flight, or a motorcycle in motion), then oil cooling is an ideal way to cope with those times when extra cooling is needed (such as an aero-engine taxying before take-off, or a motorcycle in a city traffic jam). But if the engine is a racing engine that is always producing huge amounts of heat, water cooling may be preferable.

Air-cooled aviation engines may be subject to "shock cooling" when descending from cruising altitude prior to landing. During descent, very little power is needed, so the engine is throttled back and thereby develops much less heat than when maintaining altitude. While descending, the plane's airspeed rises, substantially increasing the rate of air-cooling the engine. These factors may cause the cylinder head to crack; but the adoption of oil-cooled cylinder heads significantly reduces or cancels the problem as the heads are now "oil-warmed".

In the 1980s, Suzuki used ts "SACS" oil-cooling system on the powerful GSXR motorcycles, but later switched to water-cooling.

Splash lubrication is a rudimentary form of oil cooling. Some slow-turning early engines would have a "splashing spoon" beneath the big end of the connecting rod. This spoon would dip into sump oil and would hurl oil about, in the hope of cooling and lubricating the underside of the piston. (info from Wiki)

Some samples of oil cooler below:

                    

Process Skid Packages and Modules by Charles Thompson

Process Skid Packages and Modules

Charles Thompson’s packaged process systems division offers a service tailored to suit your – often unique – requirements, from the manufacture of individual pipe spools to fully engineered and constructed packages.

Process skid packages are allocated a Charles Thompson project manager to oversee the job from design to delivery and final inspection, ensuring milestones, deadlines, quality and safety specifications and budgets are met.

Process Skid Package Design Services

From the submission of your initial P&IDs and project specification, Charles Thompson will develop the plant layout and complete the detailed package engineering activities, including the mechanical design of piping and structures and the production of associated detailed fabrication drawings.

Charles Thompson’s in-house mechanical design services are complemented by our electrical and instrument design services, which offer clients a comprehensive range of project options including:

The specification and procurement of electrical equipment
Instruments and controls
The installation of this equipment
The final completed package can be functionally tested at Charles Thompson's works prior to dispatch. Our packaged process systems division can handle single process skids up to 120 tonnes and 5800mm shipping width.

Charles Thompson’s packaged process systems division will also refurbish plants on site.

Complete Packaged Process Systems – Full Service

Charles Thompson’s packaged process systems division provides a turnkey service, offering specialist ancillary services to complete your project.

These include:

• Painting
• Galvanising
• Polishing
• Installation of insulation and refractory.
• Specifying and Purchase of Valves for Modular Build Projects

All valves, including actuated type, are purchased strictly in accordance with the CTL generated specifications based on client requirements. Typical testing requirements for H2S service valves include:

• Type Acceptance Testing (TAT)
• General requirements (materials & NDE) to API 6D
• Hydro-test / torque test to API 6D / API 598
• Low temperature test (when required) to API 6D / API 598
• Fugitive emission test to ISO 15848-2 to tightness class A(HS)
• For valves in excess of 2500# rating and to API 6A, additional PR2 & PSL3G testing would be performed in excess of the above requirements

For details, please visit http://www.charles-thompson.co.uk/

Verifiactions of the Accuracy of the Neutron Fluence Calculation

 

 The accuracy of the neutron fluence calculation is limited by the uncertainties of the nuclear data,plant constructional and operational data (geometry dimensions and material content, neutron source et.) as wells calculation method approximation which are used in the neutron transport calculations. That is because a verification of the neutron fluence based on comparison of calculated with measured flux-related quantities is necessary. In according to the quality management documents ISO 9001:2001 and IAEA 50-C/SG-q the verification is a process by which the calculations methodology is approved in regard to determined requirements.

The calculated reactor pressure vessel (RPV) neutron fluence of Kozloduy NPP is verified and validated by measurements of the induced activity of threshold neutron detectors in assemblies and induced activity of threshold neutron foil-detectors placed in the air cavity behind the RPV. The measured activity of detectors placed in the surveillance assemblies together with induced with induced activity of metal samples serve for verification and validation of neutron fluence into the samples.

Same of the problems verification and validation neutron fluence based of the actual surveillance programs of Kozloduy NPP Unit 5 and 6 are:

-          The irradiation conditions respectively the fluence of the surveillance capsules and specimens can be calculated respectively determined only if the exact position of the surveillance capsules in the core zone restrictor in the reactor pressure vessel is known with respect to axial and radial coordinates;

-          The exact radial location of the specimens in relation to the core is not known for the irradiation period due to the rotation of the assemblies and as a result, the fluence can not be determined exactly;

-          Generally, the number of fluence detectors is a too small to enable complete characterization of rhe neutron flux distribution within the assembly as well as within the specimens;

-          The irradiation temperature is assumed to be non-uniform due to above mentioned varying irradiation conditions.

In accordance with the General Time Schedule as laid down in the Main Contract of the modernization of Units 5 and 6 (Contract No. AEZ-765/99), following tasks were assumed.

-          Implementation of the surveillance assemblies for Units 5 and 6 as well as for Unit 6 during the outage of the respective Unit in 2003;

-          Withdrawal of one standard surveillance assembly of Unit 6 after 9 cycle during the respective outage in 2004;

-          Follow-up disassembling, testing and evaluation of the surveillance assembly to determine the irradiation conditions with respect to fluence and irradiation temperature is Unit 6.

References

[1] Rhoades, W.A., Childs, R.L., “TORT Three Dimensional Discrete Ordinate Neutron/Photon Transport Code with Space-Depedment Mesh and Quadrature”, ORNL-6268 (Nov. 1987).

[2] BUGLE-96, Coupled 47 Neutron, 20 Gamma-Ray Group Cross Section Library Derived from ENDF/B-VI for LWR Shielding and pressure Vessel Dosimetry Applications, RSICC, ORNL, DLC-185.

[3] The International Reactor Dosimetry File (IRDF-2002), IAEA-INDC(NDS)-448.

[4] U.S. Nuclear Regulatory Commission, Regulatory Guide 1.99, Revision 2, “Radiation Embrittlement of Reactor Vessel Materials”, May 1988.

[5] Desing and Construction Rules for Mechanical Components of PWR Nuclear Islands (RCC-M), AFCEN, Paris, 1993 Edition.

[6] In-Service Inspection Rules for Mechanical Equipment of PWER Nuclear Islands (RSEM) 1990 Edition.

[7] Regulations and Calculation Norms for Equipment and Tubing Strength of the Nuclear Energy Facilities (PNAE G-7-002-86, PNAE G-7-008-89). Gosatomenergonadzor, Energoatomizdat, 1989.

[8] Calculational and dosimetry Methods for Determining Pressure Vessel Neutron Fluence, Draft Regulatory GuideDG-1025, U.S. Nuclear Regulatory Commission, 1993.

Kohler/Lombardini - Ready for the Future, Press Release

In preparation for new regulations on emissions that are soon to take effect (final TIER 4, above 19 kW in the US; Stage IIIB, above 37 kW in the EU), Kohler is presenting a new line of KDI (Kohler Direct Injection) diesel engines.

Innovation is the common thread running through the design of this completely new family of engines, which feature highly advanced technology for clean combustion and limited emissions without the use of after-treatment systems, while simultaneously enabling remarkable performance levels to be reached.

The excellent power and torque in relation to the engines’ compact size and the absence of particulate abatement systems (such as DPFs) translate into clear advantages for all OEMs who can now replace their current engines with lower-displacement units and, at the same time, enjoy the benefits of reduced fuel consumption and longer maintenance intervals, since no filter regeneration is required.

Main Technical Features - Innovating the Future                                 

Fully optimized to meet market demands, the design was developed using the most advanced technology currently available. Clean combustion achieved with a high-pressure (2000 bar) Common Rail system of the latest generation, combined with an electronically triggered EGR valve that makes circulate the right amount of exhaust gases (which are liquid-cooled by a water/air heat exchanger), enables emission levels to comply with the new regulations while providing exceptional performance - and all without the use of after-treatment systems.  The added value of KDI and the technology employed to create it result in "Best Comfort" for the user, thanks to the compact size of the engine, and its performance, sturdiness, low levels of vibration and noise emissions, and low operating and maintenance costs.

The Common Rail system:

Kohler/Lombardini have chosen the most advanced common rail system available on the market. It’s specifically designed for extreme durability and resistance to the highly severe conditions of operation that are typical of applications in the industrial and building construction sectors.  The high pressure pump operates at 2000 bars. This feature, combined with G3S solenoid-type injectors, enables fuel optimization during injection.

4 valves:

The 4 valves per cylinder system used was designed to house the injector in a perfectly vertical position at the very center of the combustion chamber. This solution optimizes fuel filling, atomization and mixing with oxygen in the chamber.  

The intake manifold and the combustion chamber were developed with thorough fluid-dynamic (CFD) analysis for maximum combustion efficiency.

Turbocharger and aftercooler:

The waste-gated turbocharger has been specifically tuned to minimize the turbo-lag response and provide the precise volume of air for an excellent low end torque capability. Specific oil control devices also allows for the required lubrication of the turbine shaft for long term durability. The use of a charge air cooler is required to ensure the correct air inlet temperature for the optimal engine performance whilst achieving emissions compliance.

The turbocharger is equipped with special lubrication and oil retention solutions for unmatched durability and reliability over time.

The EGR System:

The exhaust gas recirculation system, which is the product of a painstaking CFD analysis, consists of two cooling stages that optimize heat exchange without increasing overall size. Also, its position on the hot side effectively prevents the EGR valve from jamming, which ensures maximum reliability.

ECU:

The Common Rail injection system and the electronic control unit required for controlling it are both of the latest generation. They were specifically developed for heavy-duty applications in the industrial and building construction sectors.

The control unit provides total control of engine calibration parameters so that required performance and emission levels can be reached. The CAN-BUS system provides a direct communication interface between the engine and the electronic components associated with the specific application.

User Benefits - Creating the Future Together                                                    

The absence of after-treatment systems offers countless advantages for both the manufacturer and the user.  In fact, thanks to the advanced injection system (with 2000 bar Common Rail, EGR valve and 4 valves per cylinder), no DPF is required. The immediate resulting advantage is reduced external dimensions.  KDI is designed to be compact, yet provides great performance (power of up to 23 kW/liter and torque of up to 120 Nm/liter). Also, since no filter regeneration is necessary, fuel consumption is effectively reduced (by 3-5% over a solution with average 1600 bar pressure and DPF, and more than 10% when compared with a solution employing indirect injection and a stand-alone DPF) and the same is true for the consumption of oil. Oil consumption is also influenced by the special smoothing of the cylinders with latest-generation machinery, which reduces friction and thus optimizes oil consumption and raises maintenance intervals to 500 hours, with a resulting gain of from 250 hours (comparing KDI with current engines that do not comply with final TIER IV regulations) to 350 hours (considering the oil consumption of these engines with DPF). Also, maintenance intervals are not adversely affected by the need to replace the particulate abatement filter (which has an estimated service life of 3000 hours).

The cooling of recirculated exhaust gasses with resulting abatement of NOx is not only due to the location of the EGR valve on the hot side, but is particularly produced by the special path that circulating air takes through the two cooling stages. Also, the special geometric layout of the intake manifold leads to uniform mixing of air in each cylinder, which equally distributes the NOx abatement obtained in the previous stage.

Precise, meticulous NVH (Noise – Vibration – Harshness) analysis, combined with the bedplate architecture design concept (i.e., crankcase assembly is obtained by joining the crankcase and the bed plate) makes the engine more rigid and thus more solid, for reduced noise and vibration.

The auxiliary power take-offs are designed and located to deliver the highest possible percentage of engine power. They also allow two hydraulic pumps to be installed in tandem. What’s more, the PTO turn ratio (1:1.2) allows the use of smaller hydraulic pumps with the same power. 

The Product Range - New Opportunities for the Future                             

The KDI product range is an important opportunity for the future. Two targets have been reached by the development of this new family of engines:

-          compliance with emission requirements taking effect in January 2013 (final TIER 4 ; Stage IIIB)

-          Extension of the diesel engine line to include power ratings of up to 100 kW

   

Promoting the Future                                                                                                              

Innovation also lies at the heart of the publicity system used to promote the new KDI family.

Advanced design, the use of easily recognizable colors (black and bronze) and social media, along with an international “Press Conference”, are helping to renew the image of the two companies (KOHLER/Lombardini), which have been producing engines for over 80 years.

Maintenance of Heat Exchangers-Sample of Tender Notice

Sub: Maintenance of Heat Exchanger– Additional Work

Sealed tenders are invited from registered contractors with HOCL, Kochi for Maintenance of Heat Exchangers – Additional Work

General Scope of Work for Maintenance of Heat Exchanger & Pressure Safety Valves

·         Once the equipment is ready for maintenance, isolation of equipment by putting blinds/spectacle blinds in feed and out let nozzles and all other nozzles indicated for the purpose and fix blind number tags.

·         Preparation for man entry ie. provide necessary hose connections for draining, purging, steaming and water washing and airing of the equipment as the case may be.

·         Fixing and operating eductors for airing the equipment.

·         Record in the blind tag Nos. in the blind register and obtain signature in the register by Engineer-in-Charge.

·         Pressure safety valves on the equipment and connected pipe lines shall be in the scope of work of the respective equipment in the schedule of rates unless otherwise mentioned separately.

·         Assisting the inspecting team engaged in the inspection of column / pressure vessel.

I.          Heat Exchanger Maintenance

·         Open channel head cover

·         Open channel head

·         Open shell cover and floating head cover if the exchanger is floating head type.

·         Pull out the tube bundle (not applicable if exchanger is fixed tube type).

·         Clean the tubes and shell, channel head and channel head shell and floating head cover and offer the parts for hydroblasting and cleaning.  If hydroblasting is required for cleaning, the same will be arranged by HOC at their cost.

·         Assemble the tube bundle, channel head shell and covers in required sequence and stages suitable for Hydrotest of tube side and shell side separately..

·         Hydrotest the exchanger on shell side and tube side.

·         Hydrotest should be got witnessed by Engineer-in-Charge/3^rd Party Inspector.

·         Test rigs should be used for testing floating head type exchangers tube bundle.

·         Test pressure should be as per the inspection of the Inspector/Engineer-in-charge.

·         Leaking tubes if any noticed during hydrotest should be plugged using CS/SS/Brass plugs as per the instruction of Engineer-in-charge.  Required plugs will be supplied by HOC at free of cost.

·         Removal of isolations ie. blind, spectacle blinds, blind tags.

Note : 50% of the quoted rate only will be paid to the party if the tube bundle is not pulled out and brought to the ground (ie. only hydro testing of the tube and shell side and plugging of the leaking tube is done.)

II.         Maintenance of Pressure Safety Valves

·         Removal of PSV from the location, which are mounted on vessel/column/Heat Exchanger and or its connected piping.

·         Blinding inlet/outlet nozzle of the PSV immediately and put blind tags without disturbing the flare system and record in the blind register.

·         Dropping the PSV to the ground level.

·         Transportation of PSV from site to Central Workshop.

·         After overhauling, testing and third party inspection by HOCL, collect the valves from Central Workshop and transport it to the respective locations.

·         Remove the blinds, blind tags and fix the PSVs at respective locations using new gaskets and fasteners.

·         Cost of these works shall be absorbed in the quoted rate for the maintenance of columns, Heat Exchanger, Vessel.

Taxes & Duties

Your quoted rate shall be inclusive of all taxes and duties whatever applicable to this job except service tax.  Service tax will be paid extra if the party produces service tax registration and other relevant documents to HOC.

Liquidated Damages

In the case the party fails to complete the work within the stipulated period, there shall be a penalty at the rate of ½% (half percent) of the value of the contract per day of delay to a maximum of 5% of the total contract value.

Defect Liability Period

Contractor shall guarantee the work for a period of one year from the date of issue of completion certificate.  Any damage or defect that may arise or lie undiscovered at the time of issue of completion certificate, connected in any way with the workmanship should be rectified by the contractor at his own expense as deemed necessary by the Engineer-in-Charge.        

Initial Security Deposit

Initial security deposit @ 2.5% of the contract value shall be remitted with HOCL, Kochi within 10 days from the date of receipt of this work order.

Agreement

You have to execute an agreement with HOC in the prescribed format on a non judicial stamp paper for Rs. 100/- given in the GCC within 10 days from the date of work order.

Scope of Supply

·         HOCL shall issue pipe fittings, hoses, gaskets, fasteners, tube plugs, air, water, electricity at one point free of cost to the contractor.

·         HOCL shall permit the contractor to hire the HOCL’s Forklift and mobile crane on chargeable basis if it is available and the rate shall be Rs. 1000/hr. for mobile Crane of capacity 18T and Rs. 600/hr. for Forklift + service tax.

·         Contractor shall bring necessary tools and tackles, chain pulley blocks, D-shackles, slings and any other equipments required for the work at his own risk and cost.

·         HOC will provide only the gaskets and fasteners for the final box up work.  Temporary gaskets for blinding/isolation should be made by the contractor.  However, gasket sheets for the same will be provided by HOCL at free of cost.

Testing & Inspection

HOCL shall inspect the equipments during the work in progress along with the 3^rd party inspection arranged by HOCL.  All the necessary assistance shall be provided by the contractor to the Inspectors during inspection of the equipments.  Contractor has to follow all the instruction given by HOCL Engineer-in-Charge, Inspection Engineer & 3^rd party Inspector.

Payment Terms

·         90% payment will be released after completion of work and certification by Engineer-in-Charge.

·         Balance 10% payment will be made after defect liability period of one year or on production of PBG for the said amount.

Completion Period

The completion period shall be 20 days from the date of clearance to start the job and deviations shall be permitted as per the work permits issued by HOCL

ESI, PF Requirements

Please see the Annexure – A attached.

Note:

1.                  This tender aims for already enlisted contractors for this work with HOCL Kochi Unit.  Any new contractor who wish to empanel for this type of work may submit the credentials as detailed below so that they will be evaluated and pre-qualified and shall be considered for similar future work.

Credentials to be submitted for the pre-qualification.

1.      Details of the Organization and the works carried out

2.      Work Order copies of the work executed showing the order value for the last 3 years.

3.      Man Power Organogram

4.      Solvency Certificate from a Nationalized Bank

5.      Annual Turn over for the last 3 Years.