纳米颗粒协同肋片强化相变材料传热性能试验

doi:10.19799/j.cnki.2095-4239.2022.0021

储能科学与技术 ›› 2022, Vol. 11 ›› Issue (10): 3161-3170.doi: 10.19799/j.cnki.2095-4239.2022.0021

纳米颗粒协同肋片强化相变材料传热性能试验

柴进(), 王军(), 倪奇强

江苏大学汽车与交通工程学院，江苏镇江 212013

收稿日期:2022-01-12 修回日期:2022-03-02 出版日期:2022-10-05 发布日期:2022-10-10
通讯作者: 王军 E-mail:cj_020498@163.com;qcwjun@ujs.edu.cn
作者简介:柴进（1998—），男，硕士研究生，主要从事相变储能及温差发电等方面的研究，E-mail：cj_020498@163.com；
基金资助:
国家自然科学基金项目(51776090)

Experiment on heat transfer performance of phase change materials strengthened by nanoparticles and fins

Jin CHAI(), Jun WANG(), Qiqiang NI

School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China

Received:2022-01-12 Revised:2022-03-02 Online:2022-10-05 Published:2022-10-10
Contact: Jun WANG E-mail:cj_020498@163.com;qcwjun@ujs.edu.cn

摘要/Abstract

摘要：

以石蜡作为相变材料(phase change material，PCM)，设计并搭建了一套PCM传热强化试验系统，在PCM中加入了高导热率纳米颗粒和金属肋片，结合温度数据采集系统对PCM熔化过程进行了试验测试，对PCM内部不同测点的温度变化趋势进行了分析，研究了纳米颗粒质量分数和肋片数对PCM传热性能的影响。结果表明：添加纳米颗粒可有效提升PCM温升速率，0.06%(质量分数，余同)石墨烯/PCM温升速率较高，与其他组分的石墨烯/PCM相比传热效果更好；加入肋片可加快PCM内部温度响应，9肋片/PCM的整体传热性能优于其他数量的肋片/PCM；纳米颗粒协同肋片结构可促进PCM传热性能的提升，9肋片、0.06%石墨烯/PCM与9肋片、0.09%石墨烯/PCM启动时间早，温升幅度高，传热性能好，为强化PCM传热性能中的较优组合。

关键词: 纳米颗粒, 肋片, 相变材料, 传热性能

Abstract:

A phase change material (PCM) melting test apparatus was constructed, metal fins were added to the PCM, and paraffin was used as the PCM. Subsequently, high thermal conductivity nanoparticles and metal fins were added to the PCM. The temperature data acquisition system was used to record the internal temperature change trend in the melting process of PCM in order to analyze the influence of the mass fraction of nanoparticles and the number of fins on the heat transfer performance of PCM. Also, the results show that the addition of nanoparticles can effectively improve the temperature of PCM. The temperature rise rate of 0.06% graphene/PCM is higher than the heat transfer effect, and it is better than other components of graphene/PCM. Moreover, the addition of fins can improve the internal temperature response of PCM, and the overall heat transfer performance of 9 fins/PCM is better than that of other fins/PCM. The combination of nanoparticles and finned structure can improve the heat transfer performance of PCM. In the first 60 min of the experiment, the temperature rise of 9 fins and 0.06% graphene/PCM was faster than that of other enhanced combinations. From 60 to 90 min, the heat transfer performance of 9 fins and 0.09% graphene/PCM was enhanced, with the highest temperature rise. Therefore, they are excellent combinations in the experiment to enhance PCM heat transfer performance.

Key words: nanoparticle, fin, phase change material, heat transfer performance

中图分类号:

TK 01

柴进, 王军, 倪奇强. 纳米颗粒协同肋片强化相变材料传热性能试验[J]. 储能科学与技术, 2022, 11(10): 3161-3170.

Jin CHAI, Jun WANG, Qiqiang NI. Experiment on heat transfer performance of phase change materials strengthened by nanoparticles and fins[J]. Energy Storage Science and Technology, 2022, 11(10): 3161-3170.

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参数	石蜡	参数	石墨烯
相变温度/℃	52	纯度/%	>95
潜热/(kJ/kg)	200	层数/层	6～10
比热容/[kJ/(kg·K)]	3.22	厚度/nm	3.4～8
导热系数/[W/(mol·K)]	0.21	导热系数/[W/(mol·K)]	4900
生产厂家	上海焦耳蜡业	生产厂家	苏州碳丰科技

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纳米颗粒协同肋片强化相变材料传热性能试验

Experiment on heat transfer performance of phase change materials strengthened by nanoparticles and fins

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