R290 汽车空调安全与性能综述

Safety and Performance Review of R290 Automotive Air Conditioner

摘要

基于我国“双碳”目标和《<蒙特利尔议定书>基加利修正案》，R290因其低GWP特性和良好的低温制热能力，作为新能源汽车空调环保型制冷剂替代方案，为进一步研究R290在汽车空调中的应用特性，本文从安全性、安全防护、性能表现三大方面进行总结。结果表明：安全性主要体现在易燃、有毒；安全防护主要体现在，减少泄漏量，加强阻燃措施，使用二次回路将R290机组放在舱外提升系统安全性；在性能方面，提升热管理综合控制和提升零部件换热能力，弥补二次换热带来的损失为主要提升手段。

Abstract

Based on double carbon goal and Montreal Protocol,R290 is the new refrigerant as low GWP and good heating performance on low temperature. In order to further study the application characteristic of R290 in automobile air conditioning, summary existing technical achievements of safety and performance in this paper. The results show that: for safety, the characteristic is inflammable and poisonous; for safety protection, reduce leakage, enhance flame retardant measures and localize R290 device on energy bin with secondary loop; for performance, improve vehicle thermal management and ex-changers capacity to make up the loss by secondary loop are the main methods.

关键词

R290 / 汽车空调 / 安全 / 性能 / 二次回路

Key words

R290 / Automotive air conditioner / Safety / Performance / Secondary loop

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