The Performance Test of Heat Exchanger Under Low-temperature Frosting Conditions

The heat exchanger performance test bench under the frosting condition has been designed and structured, and the various parameters measuring instrument and sensor have been installed. The test bench consists of refrigeration cycle and air duct cycle which can simulate low temperature condition. With the assistance of C# programming language and. NET Framework, a multi-function remote measurement and control system is developed, which can be used for environmental simulation, data acquisition, display and data processing, real-time curve and video display. The performance test of heat exchanger under different conditions could be completed by the test system. The influence of external environment factors on the heat exchanger under frosting condition can be studied. This test system could provide more experimental reference and calculation basis for the study of heat exchanger under frosting condition at low temperature.