What is an aftercooler on a marine diesel?
An aftercooler is a device positioned on a marine engine that controls the temperature of the air after it has traveled through the engine’s turbocharger. The turbocharger increases a boat’s power and energy efficiency by pushing pressurized air into the cylinders.
How does a Volvo Penta cooling system work?
The temperature of the engine coolant is reduced by being passed through a heat exchanger which is itself cooled by a supply of continuously pumped sea water. The sea water is discharged either via the exhaust, when used with a wet exhaust system, or via a separate outlet, when used with a dry exhaust system.
How many hours will a Volvo marine diesel last?
5,000 hours
Fortunately, resilience is one of the defining features of a diesel engine. Even in this challenging environment, the life expectancy of a marine diesel engine is an impressive 5,000 hours on average. With attentive maintenance, that lifespan can reach 8,000 hours.
What’s the difference between an intercooler and an aftercooler?
While an aftercooler is a heat exchanger that operates by cooling the air emerging from a compression unit, an intercooler is a device attached to an air compressor that cools the air before engine intake.
How do you clean a diesel aftercooler?
Re: Best way to clean an aftercooler? I used tri sodium Phosphate (TSP) which you can still get at Jamestown Supply. It is a great degreaser and is easy on the metals and solder joints. It can also be safely mixed with bleach to clean bilges and soot off the bulkheads etc.
How does a marine diesel heat exchanger work?
Heat exchangers use seawater to help the coolant side cool the engine. The coolant and the seawater pass through a series of separate tubes and the heat is transferred to keep the engine running cool and efficiently. Heat exchangers should be checked regularly for corrosion and leakage.
How are marine diesel engines cooled?
Most marine inboard engines are fresh water cooled. Much like your car, a captive amount of freshwater (coolant) is continually circulated through a heat exchanger that maintains the engine at a temperature set by the thermostat. Usually this is between 170 and 180 degrees.
How do you clean a marine aftercooler?
What is the difference between intercooler and aftercooler?
What does a heat exchanger do on a diesel engine?
An exhaust gas heat exchanger recovers heat energy from the exhaust gases of a reciprocating diesel, gas or bio gas fuelled engine and utilises this energy to heat water, which can then be used for space or process heating, cooling, via a chiller system or generating more electricity, via an ORC system.