| 嵌入式相变材料对热电发电器件性能的影响 |
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| 引用本文：田园园,刘安邦,张梦君,王俊丽,谢华清,吴子华,王元元.嵌入式相变材料对热电发电器件性能的影响[J].上海第二工业大学(中文版),2019,(4):262-268 |
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| 基金项目:国家自然科学基金重大项目 (51590902)、国家自然科学基金 (51876111、51676117)、上海第二工业大学校级基金
(EGD18XQD22)、上海第二工业大学研究生基金 (EGD18YJ0014) 和上海市高原学科 - 环境科学与工程 (资源循环科
学与工程) 资助 |
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| 中文摘要:热电器件 (thermoelectric generator, TEG) 能够直接将热能转化为电能, 且具有体积小, 无运动部件, 寿命高,
运行成本低等优点。相变材料 (phase change material, PCM) 在相变时能够恒温吸收、释放大量热量, 因此被广泛应
用于热电发电领域以稳定热端温度。设计了一种嵌入式的相变 - 热电 (PCM-TEG) 系统, 探究了热源停止供热后的
一段时间内, 相同体积不同长度的 PCM 对 TEG 发电性能的影响。结果表明, 被 PCM 包裹的长度与总长度的比值
为 40%时, PCM-TEG 系统产生的电能最多, 与不使用 PCM 相比, 热电发电器件的输出电能增加了 76.06%。PCM 的
使用能够提高热电发电系统对热能的利用率, 且在使用的 PCM 的体积一定时, 需要优化 PCM 包裹热电臂的长度以
提升热电发电器件的输出热能。 |
| 中文关键词:热电发电 相变材料 器件优化 热电性能 |
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| Influence of Embedded Phase Change Materials on the Performance ofThermoelectric Power Generation Devices |
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| Abstract:Thermoelectric generator (TEG) can directly convert thermal energy into electrical energy, and have the advantages of small
size, no moving parts, high life, and low operating cost. Phase change material (PCM) which is capable of absorbing and releasing a
large amount of heat at a constant temperature during phase change, are widely used in the field of thermoelectric power generation
to stabilize the hot-end temperature. An embedded PCM-TEG system is designed. The effect of PCM which has the same volume
and different lengths on the power generation performance of TEG has been investigated in a period of time after the heat source stops
heating. The results show that the PCM-TEG system has the optimal output power when the ratio of the length of PCM package to
the total length is 40%. Compared with the case that without PCM, the output power of the TEG is increased by 76.06%. The PCM
can improve the utilization of thermal energy in the thermoelectric power generation system. When the volume of the PCM used is
constant, it is necessary to optimize the length of the leg of the PCM wrapped thermoelectric material to improve the output power of the thermoelectric generation device. |
| keywords:thermoelectric power generation phase change material device optimizing thermoelectric performance |
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