AN 6PASS TUBE-FIN TYPE HEAT EXCHANGER USING REFRIGERANT CONTAINING HFO 1234YF

摘要

PURPOSE: An air conditioning system for a vehicle using a 6-path tube-fin type heat exchanger using refrigerant containing HFO 1234yf is provided to improve evaporator performance, become high environment-friendly, and optimize the quantity of heat radiation and quantity of voltage drop. CONSTITUTION: An air conditioning system for a vehicle comprises a compressor, a condenser, an expansion valve, and a tube-fin type evaporator(100). The evaporator comprises multiple tubes(20), a pin(30), a pair of header tanks(10), and one or more baffle. The multiple tubes are parallel to an air blowing direction. The pin is interposed between the tubes and increases heating surface area with air flowing between the tubes. The header tank is coupled with both ends of the tube. The baffle is formed in the header tank. The heat exchange medium is refrigerant including HFO 1234yf material.