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Environmental testing of equipment for oil drilling and production operations poses special demands, notes test engineer Burroughs. “I needed a cooling tower with water-distribution power that is far from normal operating conditions… Secondly, I hate doing maintenance.” The cooling tower supports electrodynamics shakers that check whether the equipment is tough enough. “These shakers emit a great deal of heat and they’re cooled by a closed distilled water system because distilled water doesn’t conduct electricity,” he explains. “Once heated, the distilled water flows through heat exchangers that are cooled by a chill water loop. A three–year-old, 100-ton Delta plastic tower is on the other end of the chill water loop. Another similar unit was also used to reject the heat created by two 1,000-hp drilling mud pumps. It has been working fine for over 13 years.”

“The molded-plastic cooling tower is the only way for us to go, as I was able to eliminate double cooling — which was the case when we had metal cooling towers cooling down chillers for the process water,” says Doug Henderson, project engineer for Cerro Wire & Cable, Hartselle, Ala. “We switched over to plastic cooling towers and they give us enough cold water that we can do the job without any problems and we don’t waste the energy.” Today Cerro Wire & Cable uses four 200–ton Delta cooling towers for four different process areas. Three go through heat exchangers to cool process water, while the fourth cools an open loop that runs through water troughs to cool wire as it is encased with plastic.

A Heat Exchanger is a device built for efficient heat transfer from one medium to another. A solid wall separates the media, so that they never mix, or they may be in direct contact. They are widely used in space heating, refrigeration, air conditioning, power plants, chemical plants, petrochemical plants, petroleum refineries, and natural gas processing.

A Shell and Tube Heat Exchanger is a class of heat exchanger designs. It is the most common type of heat exchanger in oil refineries and other large chemical processes, and is suited for higher-pressure applications. As its name implies, this type of heat exchanger consists of a shell (a large pressure vessel) with a bundle of tubes inside it. One fluid runs through the tubes, and another fluid flows over the tubes (through the shell) to transfer heat between the two fluids. The set of tubes is called a tube bundle, and may be composed by several types of tubes: plain, longitudinally finned, etc.

Shell and Tube heat exchangers are typically used for high-pressure applications (with pressures greater than 30 bar and temperatures greater than 260°C). This is because the shell and tube heat exchangers are robust due to their shape.

Heat is transferred from one fluid to the other through the tube walls, either from tube side to shell side or vice versa. The fluids can be either liquids or gases on either the shell or the tube side. In order to transfer heat efficiently, a large heat transfer area should be used, leading to the use of many tubes. In this way, waste heat can be put to use. This is an efficient way to conserve energy.

LENCO has been manufacturing Marine Engine Heat Exchangers and Marine Engine Oil Coolers for marine engines since 1972. We stock direct replacement coolers for many major engine manufacturers. Additionally, our expertise and experience permit us to offer upgraded units where we have found the original equipment to be undersized or otherwise inadequate.

Being in an industry that’s reliant on your equipment’s performance, you know the value your marine engine oil coolers bring to the equation. It’s truly the lifeblood of your business. And when it’s down, you’re down. So you recognize the value of proper maintenance and timely, before-failure engine overhauls.

Overhaul your Cat marketable marine engine oil coolers is an significant step in restoring the performance and dependability built into your engine.

With the factory-backed Overhaul fortification for marketable engines program, you can lock in performance for up to four years. Its added declaration against the costs of unexpected engine part or component failure.

The OPC curriculum is one of the most excellent factory-backed shelter plans in the business. Because all work is performed by our knowledgeable technicians, you’re definite a high quality Caterpillar overhaul that maximizes uptime and ease of use.

You’ll also get the factory-backed defense of extra reporting against the cost of parts and labor if your engine suffers a breakdown due to defects in material or dealer workmanship. The plan also offers the added benefit of allowing you to budget more closely.

The inside grows from heat and the outside is being cooled far too much and is kept small. This means valves, guides, piston and cylinders, pins and rod bearings are all being subjected to stress and abnormal wear without the thermostat and shutters. After all, you don’t take the thermostat out of your new water cooled car do you?

First, lets talk about why water goes to the exhaust system first, if not the same time as the circulating pump, or engine block. Water MUST get to the exhaust manifolds rather quickly so that they do not overheat. They must have a steady diet of cool raw water flowing through them all the time so that they stay nice and cool, even while the engine is getting up to operating temp. If not, the exhaust system would seriously overheat, and burn any rubber connection hoses associated with it. In extreme cases, it can catch the bilge of the vessel on fire. Your exhaust manifolds should never be excessively hot to the touch. I am not in anyway telling you to go out and touch them after running the boat either.

The more we tested, the more apparent it became that the heads are the source of the heat. We found the CR and volumetric efficiency of the engine is a large factor. When heads, CR, carburetion, exhaust and cam are all correctly matched to the engine so the volume of fuel (proper octane) and air is what the engine wants, the engine runs cooler and lasts longer. For long life, we recommend conservative compression ratios, especially because pump gasoline quality has been going down, down, down from the good old days.

It is very important to keep your cooling system in proper operation. The system often gets debris in it, such as sand, trash, grass and parts of broken impeller lodged about. I know of several on this forum that have had cooling system problems on both inboard and inboard/outboard engines. Sometimes it takes a while, but the systems can be cleaned and repaired.

LENCO, source for replacement marine heat exchangers and marine heat exchangers, has been the quality and performance leader since 1972.Priced Right at lencocoolers.com