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收稿日期:
2023-12-07
修回日期:
2024-02-12
出版日期:
2024-03-21
通讯作者:
杜文静
作者简介:
李新泽(2000—),男,硕士研究生,lxz2023@mail.sdu.edu.cn
基金资助:
Xinze LI1(), Shuangxing ZHANG1, Honghai YANG2, Wenjing DU1()
Received:
2023-12-07
Revised:
2024-02-12
Online:
2024-03-21
Contact:
Wenjing DU
摘要:
提出了一种电池冷却用C形脉动热管(pulsating heat pipe, PHP),具有较好的散热性和包裹特性。选择甲醇、丙酮、去离子水、乙醇和甲醇-丙酮混合物为PHP工质,实验研究了不同加热功率和充液率(Filling Rate, FR)工况下PHP的性能。结果表明,FR过高或过低均不利于C形PHP稳定运行,实际应用中需综合考虑热阻、传热极限等指标,选取合适的FR。实验研究范围内,C形PHP最佳FR在45%左右。综合考虑蒸发温度与热阻,甲醇-丙酮混合物C形PHP具备更好的性能,能够满足第二代Mirai电池冷却需求,可将其表面温度控制在84℃以下,允许的电池最大体积功率密度为6kW/L。依据应用场合选择工质和布置方式后,PHP能保证受控对象的安全运行,相关结论为电池热控制系统设计提供了重要的参考和借鉴。
中图分类号:
李新泽, 张双星, 杨洪海, 杜文静. 基于电池冷却用新型脉动热管性能的实验研究[J]. 化工学报, DOI: 10.11949/0438-1157.20231309.
Xinze LI, Shuangxing ZHANG, Honghai YANG, Wenjing DU. Experimental study on performance of new type of pulsating heat pipe for battery cooling[J]. CIESC Journal, DOI: 10.11949/0438-1157.20231309.
图2 实验装置与测温点注:1—— 风扇;2—— 无纸记录仪(YOKOGAWA);3—— 交流电源;4—— C形PHP;5—— 玻璃纤维保温棉;6—— 蒸发段测温点;7—— 冷凝段测温点
Fig.2 Experimental device and temperature measurement point
设备名称 | 设备参数 |
---|---|
无纸记录仪 | 厂家:YOKOGAWA,型号:GX20,精度:±0.1℃ |
交流电源 | 厂家:国电亚光电源有限公司,型号:HYB1760-0.5 KVA,精度:±0.1 A,±0.1V |
T型热电偶 | 测温范围:-200~350℃,精度:±0.5℃ |
表1 相关设备的详细参数
Table 1 Detailed parameters of related devices
设备名称 | 设备参数 |
---|---|
无纸记录仪 | 厂家:YOKOGAWA,型号:GX20,精度:±0.1℃ |
交流电源 | 厂家:国电亚光电源有限公司,型号:HYB1760-0.5 KVA,精度:±0.1 A,±0.1V |
T型热电偶 | 测温范围:-200~350℃,精度:±0.5℃ |
参数 | 最大不确定度/% |
---|---|
Tc | ±1.85 |
Te | ±1.85 |
Q | ±0.14 |
R | ±3.49 |
表2 主要实验参数的最大不确定度
Table 2 Maximum uncertainty of main experimental parameters
参数 | 最大不确定度/% |
---|---|
Tc | ±1.85 |
Te | ±1.85 |
Q | ±0.14 |
R | ±3.49 |
图13 甲醇、丙酮及其混合工质C形PHP稳态平均蒸发温度
Fig.13 Average evaporation temperature of methanol, acetone and their mixed working medium C-shaped PHP after steady state
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