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A Study on the Optimum Design Parameters of the Thermostat for An Automotive Engines (I)
Technical Paper
923886
Sector:
Event:
KSAE Spring Conference
Language:
Korean
Abstract
It is widely recognized that exhaust emissions, fuel economy and
engine torque are affected by engine temperature, and logic would
suggest that a cooling system offering a better compromise of
engine temperature would improve both overall engine performance
and economy.
Author measured coolant temperature of some parts and flow rate
which are necessary to heat transfer in a engine. And author
determined parameters necessary for the optimum design of a
thermostat to keep the best engine performance; determined the
optimum operating temperature of electric cooling fan.
A summary of this study is followed. 1. Study of the effects of
cooling condition to combustion character in a engine. 2. Analyze
of heat transfer surrounding engine cylinders. 3. Study of the
effects of cooling character to engine heat rejection,
determination of the optimum coolant temperature for keeping the
optimum engine performance and determination of the optimum design
of a thermostat for keeping that temperature.