摘要
利用半导体致冷片(TEC)内热电热机热路与固体传热热路并联的模型,构建有限时间热力学的自主学习实验平台,开设多变量相互作用实验.教学实践表明,该实验的教学促进了学生深入理解热电效应和热力学第二定律等知识,并提升了学生的实验动手能力.
Experimental projects and teaching instruments related to the second law of thermodynamics are relatively scarce in current university physics laboratories.This paper utilized a model combining the thermal circuit of a thermoelectric heat engine within a semiconductor thermoelectric cooler(TEC)in parallel with a solid heat conduction path to construct a finite-time thermodynamics experimental platform for self-directed learning.This platform facilitated the implementation of multivariable interaction experiments.Teaching practice demonstrated that the application of this experiment promotes students’deeper understanding of concepts such as thermoelectric effects and the second law of thermodynamics,while simultaneously enhancing their experimental skills.
作者
薛玉琪
李祝
何振辉
XUE Yuqi;LI Zhu;HE Zhenhui(School of Physics and Astronomy,Sun Yat-Sen University,Zhuhai 519082,China)
出处
《物理实验》
2025年第7期27-34,共8页
Physics Experimentation
基金
教育部高等学校大学物理课程教学指导委员会2022年高等学校教学研究项目(No.DWJZW202238zn)
2023年度广东省本科高校教学质量与教学改革工程建设项目(粤教高函〔2024〕9号)。
关键词
热电效应
热力学第二定律
热机效率
TEC
积木式装置
thermoelectric effect
second law of thermodynamics
thermal engine efficiency
thermoelectric cooler
building-block setup
