上海交通大学学报

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2021 , Vol. 55 >Issue 2: 179 - 187

DOI: https://doi.org/10.16183/j.cnki.jsjtu.2020.061

带喷射器的跨临界CO2车用空调系统实验研究

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  • 上海交通大学　制冷与低温工程研究所，上海 　200240
李浩(1995-)，男，山东省日照市人，硕士生，主要研究方向为汽车空调制冷剂替代．

收稿日期: 2020-03-09

  网络出版日期: 2021-03-03

基金资助

国家自然科学基金资助项目(51776119)

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Experimental Study of a Trans-Critical CO2 Mobile Air Conditioning System with an Ejector

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  • Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai 200240, China

Received date: 2020-03-09

  Online published: 2021-03-03

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摘要

在焓差实验室中研制了一套车用二氧化碳(CO2)喷射制冷空调系统，在标准汽车空调性能实验台上对不同工况参数下的CO2制冷系统性能进行评估，并对比分析了CO2喷射制冷系统的性能优势．研究结果表明：车用CO2喷射制冷空调系统制冷量与车用CO2常规制冷系统制冷量相当；增大室内侧风量与提高压缩机转速能够有效提升CO2喷射制冷系统的制冷量，喷射器在不同工况下能够提升系统能效比(COP) 1.65%～12.60%；室外温度对车用CO2喷射制冷系统的性能影响显著，该系统在高温环境下会出现明显的性能衰减．

关键词： 二氧化碳; 喷射器; 跨临界循环; 汽车空调; 性能

本文引用格式

李浩, 张振宇, 宋霞, 陈江平 . 带喷射器的跨临界CO2车用空调系统实验研究[J]. 上海交通大学学报, 2021 , 55(2) : 179 -187 . DOI: 10.16183/j.cnki.jsjtu.2020.061

Abstract

A carbon dioxide(CO2) ejector expansion air conditioning system for vehicles is developed in a calorimeter laboratory. In experimental tests on a standard mobile air conditioning bench, the effects of different operating parameters on the performance of the CO2 refrigeration system for vehicles are studied, and the performance advantages of the CO2 ejector expansion refrigeration system are comparatively analyzed. The research results show that the cooling capacity of the CO2 ejector expansion refrigeration system for vehicles is almost equal to that of the CO2 conventional cooling system. Both increasing the indoor air flow rate and increasing the compressor speed can effectively increase the cooling capacity of the CO2 ejector expansion refrigeration system, and the ejector can increase the coefficient of performance (COP) of the system by 1.65% to 12.60% under different working conditions. The outdoor temperature has a great impact on the CO2 ejector expansion refrigeration system performance, and the performance of CO2 ejector expansion refrigeration system for vehicles decays obviously at a high ambient temperature.

Key words： carbon dioxide(CO2); ejector; trans-critical cycle; mobile air conditioning; performance

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