The vapor injection pressure and vapor injection superheat usually can not be controlled at the same time during the enhanced vapor injection test of scroll compressor with economizer.In order to solve this problem,based on the test principle of compressor performance test band,the vapor injection control method with a flash-tank replacing e-conomizer and the calculation method of cooling(heating)capacity are proposed.In addi-tion,the influence of vapor injection pressure and vapor injection superheat on cooling(heating)capacity and coefficient of performance for cooling(heating)of compressor is analyzed through the enhanced vapor injection test using flash-tank.The results show that the cooling(heating)capacity and coefficient of performance for cooling(heating)of com-pressor increase with the increase of vapor injection pressure,and decrease with the in-crease of vapor injection superheat.The enhanced vapor injection performance evaluation of scroll compressor can be conducted by a single vapor injection condition test.
维普
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