新型车用R290间接式热管理系统及其性能研究

doi:10.19562/j.chinasae.qcgc.2025.10.019

Abstract

Abstract:

With the increasing application of the environmentally friendly refrigerant R290 in automotive thermal management systems， enhancing system performance and energy efficiency has become a key research focus. In this study an innovative R290-based indirect thermal management dual secondary loop system using the dual-core counterflow series heat exchange architecture is proposed. The system’s boundary performance is tested through experiments and a simulation model of the electric vehicle thermal management system is established. The performance differences between the system and the single-core and dual core parallel flow series heat exchange solutions are compared and analyzed. The results show that， under extreme summer cooling conditions （49 °C）， the counterflow system increases cooling capacity by 11.62 % and achieves a COP of 1.67 compared to the single-core solution. In extreme winter heating conditions （-20 ℃）， the system’s COP improves by over 9.5 % compared to the parallel flow arrangement. This research provides valuable technical support for the efficient application of R290 in vehicle thermal management systems.

Key words: electric vehicle, R290, thermal management system, performance analysis

Jingyang Hua,Binbin Yu,Li Yu,Yunlong Zhang,Mengdi Xu,Junye Shi,Jiangping Chen. Study on the Performance of an Innovative Indirect Thermal Management System for Automotive Application Using R290 Refrigerant[J].Automotive Engineering, 2025, 47(10): 2037-2048.

Figures/Tables 23

References 18

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零部件名称	参数信息
电动压缩机	排量34 mL，最高转速8 500 r/min
水冷蒸发器Chiller	板式换热器，有效尺寸为长×宽×高： 120 mm×70 mm×110 mm
水冷冷凝器WCC	板式换热器，有效尺寸为长×宽×高： 120 mm×70 mm×100 mm
储液罐	总容量150 mL
电子膨胀阀	口径2.0 mm，调节步数范围0~500步
冷风芯体Cooler	微通道换热器，有效尺寸为长×宽×高： 260 mm×225 mm×40 mm
暖风芯体Heater	微通道换热器，有效尺寸为长×宽×高： 150 mm×250 mm×32 mm
低温散热器LTR	微通道换热器，有效尺寸为长×宽×高： 526 mm×420 mm×28 mm

传感器	不确定度
温度传感器/K	±0.15
压力传感器/bar	±0.5 %
水侧流量计/（kg·h^-1）	±0.5 %
电流计/A	±0.2
电压计/V	±5.0

序号	工况	环境温度/℃	压缩机转速/ （r·min^-1）	芯体进风温度/℃	芯体进风风量/（m³·h^-1）	LTR迎面风速/（m·s^-1）	Chiller侧水流量/ （L·min^-1）	WCC侧水流量/ （L·min^-1）
1	夏季乘客舱制冷	30	2 000	30	360	2.0	25	25
2		35	3 000	35	360	2.0	25	25
3		43	5 000	43	500	4.0	30	30
4		49	7 000	49	500	4.0	30	30
5	冬季乘客舱制热	0	2 000	0	200	1.5	8	8
6		-7	3 000	-7	200	1.5	8	8
7		-15	5 000	-15	320	3.0	10	10
8		-20	7 000	-20	320	3.0	10	10

Study on the Performance of an Innovative Indirect Thermal Management System for Automotive Application Using R290 Refrigerant

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