Speaker
Description
Pulse tube (or piston) expansion cryogenic refrigerators are a type of refrigeration equipment capable of highly reliable operation in low-temperature environments and are particularly suitable for medium-sized cooling requirements. In this type of refrigerator, intermittent flow cold storage surface heat exchanger is required to improve the refrigeration efficiency. In this research, we designed and constructed a test platform for the heat transfer performance of intermittent flow cold storage surface heat exchanger and revealed that, when the heat exchanger structure is fixed, the commutation frequency and the inlet mass flow rate are two important factors affecting the heat transfer efficiency of intermittent flow cold storage surface heat exchanger, as well as the qualitative relationship between them. It provides an important reference for further research, design, and operation of intermittent flow cold storage surface heat exchanger.
