Research on Energy Saving of PHEV Air Conditioning System Based on Reducing Air Backflow in Underhood

被引：1
|
作者：
Wu, Haibo [1 ,2 ]
Tang, Xingwang [1 ]
Xu, Sichuan [1 ]
Zhou, Jiangbin [2 ]
机构：
[1] Tongji Univ, Sch Automot Studies, Shanghai 200070, Peoples R China
[2] SAIC Volkswagen Automot Co Ltd, Shanghai 201800, Peoples R China
来源：
ENERGIES | 2022年 / 15卷 / 09期
基金：
中国国家自然科学基金;
关键词：
PHEV; air conditioning system; air backflow; thermal management; MULTIOBJECTIVE OPTIMIZATION; MANAGEMENT-SYSTEM; POWER MANAGEMENT; THERMAL COMFORT;
D O I：
10.3390/en15093183
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
A novel method characterizing the air backflow of the underhood in order to improve the thermal efficiency of the air conditioning system (ACS) and reduce the energy consumption of PHEV is proposed in this paper. In addition, a 1D model for analyzing air backflow occurring in the underhood is established and a CFD method for calculating air backflow rate and distribution is proposed. It is found that the decrease in the air backflow rate of the underhood helps to improve the refrigeration capacity of the ACS, and when the backflow ratio cannot be reduced below 10%, the air backflow should be distributed as evenly as possible at the front end of the condenser. Moreover, in order to eliminate the impact of backflow on the underhood of PHEV, the gap between the radiator and the bracket is sealed and the gap around the air guide is reduced. Compared with the original structure, the backflow rate of the optimized structure is reduced from 32.7% to 9.3% and the cabin temperature can be reduced by 3-5 degrees C.
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收藏
页数：15
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