Abstract
This paper proposes a scheme for creating a low-pressure environment to evaporate a large amount of water, using the latent heat of water evaporation for cooling, designing and building a test bench for a heat pipe air conditioning system, and testing the working performance of a negative pressure evaporating heat pipe air conditioner at 30–85°C. COMSOL Multiphysics Establish a fluid heat transfer model to analyze internal heat transfer. Under the design condition of 40°C, the EER is 2.1 and the cooling capacity is 298W. The experimental data and results show that the EER of the system in the high-efficiency working range of 50–75°C is 2.5, the maximum cooling capacity is 376W, and the EER in the actual application temperature range of 30–40°C is 1.4, and the cooling capacity is 221.6W. Basically reached the design index and can run stably.
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