大学化学2025，Vol.40Issue(4)：399-407,9.DOI:10.12461/PKU.DXHX202407102
经典内容、常教常新——以温-熵图为例
Teaching Classical Contents Newly:Taking Temperature-Entropy Diagram as an Example
吴强 1侯文华1
作者信息
- 1. 南京大学化学化工学院,南京 210023
- 折叠
摘要
Abstract
In the reversible thermodynamic cycles,the relationship between temperature and entropy of the system can be expressed by the temperature-entropy diagram(T-S diagram),which can simultaneously visualize the heat absorbed from the surroundings and the work done by the system,and thus the ideal heat-to-work conversion efficiency can be theoretically calculated accordingly.This article summarizes the application of T-S diagram in the several classical thermodynamic cycles for heat-to-work conversion,and also introduces the recent advances in the new energy-harvesting processes from the low-grade heat sources based on the temperature and/or concentration effects of electrode potential under the direction of T-S diagram.The purpose of this article is to deepen people's understanding and also to broaden the application range of T-S diagram.关键词
温-熵图/热功转换效率/热力学循环/新能源利用Key words
Temperature-entropy diagram/Heat-to-work conversion efficiency/Thermodynamic cycles/New energy utilization分类
社会科学引用本文复制引用
吴强,侯文华..经典内容、常教常新——以温-熵图为例[J].大学化学,2025,40(4):399-407,9.
