新能源汽车CO_(2)热泵空调系统仿真研究  

Simulation Research on CO_(2) Heat Pump Air Conditioning System of New Energy Vehicle

作　　者：刘业凤[1,2] 王雨晴 唐丹萍 Liu Yefeng;Wang Yuqing;Tang Danping(School of Energy and Power Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China;Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering,Shanghai 200093,China)

机构地区：[1]上海理工大学能源与动力工程学院,上海市200093 [2]上海市动力工程多相流动与传热重点实验室,上海市200093

出　　处：《农业装备与车辆工程》2021年第12期45-51,共7页Agricultural Equipment & Vehicle Engineering

摘　　要：设计了新能源汽车CO_(2)热泵空调系统,基于KULI仿真建立CO_(2)热泵模块与热管理系统的整车模型。研究制冷剂充注量、运行时间、压缩机转速对热泵空调系统的影响,并与PTC供暖系统和不带余热回收的CO_(2)热泵空调系统进行了能耗对比。结果表明,适用于全工况运行的最佳充注量为750 g;增加压缩机转速可以提高制冷量,使得乘客舱和电池入口载冷剂温度快速达到合适温度,但COPh、COPc分别降低2.5%和1.8%。通过与PTC供暖和不带余热回收的CO_(2)热泵空调系统对比,发现本系统的能耗仅为PTC供暖系统的42.5%,不带余热回收二氧化碳热泵空调系统的86.6%,极大地节约了能源,还增加余热回收功能,使得系统送风温度提升26%,提高乘客舱舒适性,为未来CO_(2)热泵空调与热管理系统实验研究提供参考。The CO_(2) heat pump air conditioning system for new energy vehicle is designed and the vehicle model of CO_(2) heat pump module and thermal management system is established based on KULI simulation.The effect of charging amount,running time and compressor speed on the heat pump air conditioning system is studied,and the energy consumption is compared with PTC heating system and CO_(2) heat pump air conditioning system without waste heat recovery.The results show that the best charging capacity suitable for full operating conditions is 750 g.By increasing the compressor speed,the cooling capacity can be improved,so that the refrigerant temperature in the passenger compartment and the battery inlet can rapidly reach the specified temperature.However,COPh and COPc can be reduced by 2.5%and 1.8%respectively.Finally through comparison with PTC heating and CO_(2) heat pump air conditioning system without waste heat recovery,it is found that the energy consumption of this system is only 42.5%of the PTC electrical heating,and 86.6%of the CO_(2) heat pump air conditioning system with no waste heat recovery.It greatly saves energy,and increases waste heat recovery,with system supply air temperature improved by 26%,better satisfying the requirement of passenger compartment comfort.It provides reference for the experimental research of CO_(2) heat pump air-conditioning and thermal management system in the future.

关 键 词：新能源汽车 CO_(2)热泵空调 热管理系统 能耗对比 KULI仿真 

分 类 号：U463.851[机械工程—车辆工程] U469.7[交通运输工程—载运工具运用工程]