1993-03-01

Study on a Laminate-Type Evaporator of Automobile Air Conditioning System 930147

An evaporator which is one of important components of the automobile air conditioning system has been developed on the view point of increasing heat transfer coefficient and decreasing fluid pressure loss.
To employ new configuration of refrigerant side heat transfer tube surface could improve heat transfer coefficient by 2.6 times of smooth surface heat transfer coefficient.
A distribution adjustment pipe and optimized arrangement of heat transfer tubes were applied to achieve uniform refrigerant flow distribution.
We tried to minimize the increase of refrigerant side pressure caused by employing turbulizers inside the heat transfer tubes.
We studied on thermo-fluidic behavior experimentally and developed new high performance evaporator.

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