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针对热泵型纯电动客车空调系统在冬季低温高湿环境下运行时,能源利用效率偏低、车外换热器容易结霜等问题,以已搭建的带低压补气的热泵型纯电动客车空调试验台为研究对象,试验研究了车外低温环境补气与不补气两种模式的制热性能。采用能耗分析软件Design Builder,模拟冬季全天日照下客车内光照得热量情况,旨在弥补系统制热量不足、能效偏低等不利影响,有助于优化纯电动客车空调系统设计及改善系统性能等提供参考依据。
Aiming at the problems that the heat pump type electric bus air conditioning system runs in low temperature and high humidity environment in winter, the energy utilization efficiency is low and the heat exchanger outside the vehicle is prone to frost and the like, the heat pump type pure electric bus air-conditioners The test bench is the object of study, and the heating performance of two modes of supplementing and not supplementing gas in the low temperature environment outside the vehicle is tested. The energy consumption analysis software Design Builder is used to simulate the amount of heat in the bus under daylight sunshine in winter so as to make up for the adverse effects such as insufficient heating capacity and low energy efficiency of the system and to optimize the design of the electric bus air conditioning system and improve the system performance Provide a reference basis.