The targets of this study are: To reach these targets, Valeo Engine Cooling is developing a new concept in engine cooling. This basic concept consists of adding a small electric water pump, 30 to 60W, instead of the conventional engine driven water pump of up to 1 to 2 KW. This small electric water pump provides a flow rate of approximately 1000L/h.With a liquid flow rate of 1000L/h, this conceptual system can ensure engine cooling at speeds up to 120 Km/h under convective cooling in normal conditions. That is to say, it can supply 95% of the flow requirements (see appendix ) of a vehicle at the same performance level as a conventional cooling system. The remaining 5% of the requirements, at vehicle speeds greater than 120 Km/h, and hill climbing has been resolved by the use of nucleate boiling in the cylinder head. Again, this concept works in 95% of the cases by forced liquid convection heat exchange like conventional cooling system, and only 5% by nucleate boiling heat exchange.
New Concept of Engine Cooling System (Newcool)
Sae Technical Papers
1995 Vehicle Thermal Management Systems Conference and Exhibition ; 1995
1997-05-19
Aufsatz (Konferenz)
Englisch
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