Design and Scheme Research on Vehicle Air-conditioning System for Large Temperature Difference with Ejector
LIU En-hai
ZHOU Guang-hui
PAN Jia-xin
LIU Shi-qi
Abstract：The refrigeration performance of vehicle air-conditioning system in the environment with large temperature difference has an important effect on the comfort and safety of passengers traveling life.Since under the environment of large temperature difference in summer, vehicle air-conditioning is low efficiency, high energy consumption problem.A set of ejector hybrid refrigeration cycle system is designed to analyse the summer outdoor environment of high temperature (35 ℃) and ordinary refrigeration (no more than 35 ℃) work mode, the working process of the hybrid refrigeration cycle system, and to compare and analyse the common refrigeration system for auxiliary fluid mixing in the ejector refrigeration system.Using CFD to simulate the flow field distribution of refrigerant in spray cloud image, the simulation results show that this design can better play to jet ejector ability, improve the exterior heat exchanger cooling effectively, to enhance the refrigeration effect, help to improve the efficient operation of the air conditioning system in the environment with large temperature difference, reduce throttle loss of system operation, promote the vehicle air-conditioning system in high temperature environment to work effectively, provide a reference for optimization of vehicle air-conditioning system.
Keywords：vehicle air-conditioningenvironment with large temperature differenceejectorrefrigeration effectsimulation
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 65-68,87 )