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Diesel Engine Cooling System

Diesel Engine Cooling System

Diesel Engine Cooling System

(OP)
Does anybody know of a system of jacket water cooling system using a buffer tank in between the engine and cooling tower? What could be the justification for this buffer tank?

RE: Diesel Engine Cooling System

If you were in a very environmentally sensitive area you might want to make sure that the cooling tower water was uncontaminated. Or you might want to use evaporative cooling. Or... well there's a lot of possibilities, none that are common.

Water to fluid, or fluid to water, heat exchangers are very common in automotive systems. In fact I think the Prius actually runs a water to water heat exchanger.

Cheers

Greg Locock

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RE: Diesel Engine Cooling System

In our case, we desire to provide high positive suction head for the coolant circulating pumps, as they are pumping hot (160 F) water. Additionally, typically we have multiple engines sharing a common cooling system, cooling tower, pumps, etc.

RE: Diesel Engine Cooling System

The term 'jacket water', in Diesels at least, usually refers to a glycol/water loop that's usually closed, pressurized and thermostatically regulated to 160F or thereabouts.  

That loop is typically cooled by:
radiators, or
heat exchangers and seawater, or
heat exchangers and a cooling tower loop with freshwater makeup

Engine manufacturers often >>strongly suggest<< the use of  sizable air separators in the liquid circuits, just to make sure that the pumps are pumping liquid, etc.  



Mike Halloran
Pembroke Pines, FL, USA

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