Charge air cooling- technical meaning of ambient air
Charge air cooling- technical meaning of ambient air
(OP)
We have the following scenario. An engine is located inside an enclosed structure. A suction fan pulls air from outside the structure, through the radiator, across the engine, and then vented out.
The engine manufacture uses the term ambient air in discussion of charge air cooling. According to SAE J1995, is ambient air the air which is inside the structure surrounding the engine or does it refer to the air outside of the structure?
Thanks
The engine manufacture uses the term ambient air in discussion of charge air cooling. According to SAE J1995, is ambient air the air which is inside the structure surrounding the engine or does it refer to the air outside of the structure?
Thanks





RE: Charge air cooling- technical meaning of ambient air
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RE: Charge air cooling- technical meaning of ambient air
RE: Charge air cooling- technical meaning of ambient air
engine inlet air supply immediately prior to the entrance into the engine air induction system. This
may be ambient (atmospheric) air or a laboratory air plenum that maintains air supply conditions
within the range limits defined per 5.1. Air supply systems that provide tuning or pressure
charging in violation of the intent of this procedure are prohibited. "
http://www.mie.uth.gr/ekp_yliko/SAE_%CE%94%CE%A5%C...
There should be an equivalent definition within your standard.
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RE: Charge air cooling- technical meaning of ambient air
Ambient air is always the air that surrounds the equipment.
Having said that, for a ship/boat as the air is sucked from outside the enclosure of the engine, , the internal ambient air around the equipment is a function of
- Barometric pressure at the location of the vessel or boat,
- Ambient temperature of the outside atmosphere (depending on whether the enclosure is exposed to direct sun or otherwise) , there will be a change in temperature within the space
- Pressure drop across the air filter that separates the outside space from inside &
- Capacity of the blower
RE: Charge air cooling- technical meaning of ambient air