Zhang, K.; Wu, D.; Yuan, Y.; Zhu, J.; Feng, Z.; Li, J.; Xuan, L.; Xiong, Y. Numerical Simulation and Experimental Validation of the Flow-Induced Excitation Characteristics of a Four-Way Reversing Valve. Processes2023, 11, 2177.
Zhang, K.; Wu, D.; Yuan, Y.; Zhu, J.; Feng, Z.; Li, J.; Xuan, L.; Xiong, Y. Numerical Simulation and Experimental Validation of the Flow-Induced Excitation Characteristics of a Four-Way Reversing Valve. Processes 2023, 11, 2177.
Zhang, K.; Wu, D.; Yuan, Y.; Zhu, J.; Feng, Z.; Li, J.; Xuan, L.; Xiong, Y. Numerical Simulation and Experimental Validation of the Flow-Induced Excitation Characteristics of a Four-Way Reversing Valve. Processes2023, 11, 2177.
Zhang, K.; Wu, D.; Yuan, Y.; Zhu, J.; Feng, Z.; Li, J.; Xuan, L.; Xiong, Y. Numerical Simulation and Experimental Validation of the Flow-Induced Excitation Characteristics of a Four-Way Reversing Valve. Processes 2023, 11, 2177.
Abstract
The four-way reversing valve is a key component determining whether a heat pump air conditioning system can work. Studying the four-way reversing valve is of great significance for improving the performance of the heat pump air conditioning system. In this paper, the control equation of the sliding block movement process is constructed to simulate the reversing process of the four-way reversing valve in fluid mechanics, and a detailed study is carried out from the sliding block speed, sliding block acceleration, sliding block force, refrigerant leakage, and other aspects. Research has shown that optimizing the structure of the slider can greatly improve the working performance of the four-way reversing valve. Increasing the height of the slider not only improves the pressure relief ability of the four-way reversing valve and prevents the slider from being damaged by high-pressure gas impact, but also reduces the leakage of refrigerant during the directional process; When reducing the length of the slider, although it will improve the pressure relief capacity of the four-way reversing valve, it also increases the amount of refrigerant leakage. The research results provide a theoretical basis and improvement direction for designers to improve the performance of four-way reversing valves.
Keywords
refrigeration and cryogenic engineering; reversing valve; computational fluid dynamics (CFD); performance study
Subject
Engineering, Mechanical Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
