Citation: Qiang Wu, Wenhua Hou. Teaching Classical Contents Newly: Taking Temperature–Entropy Diagram as an Example[J]. University Chemistry, ;2025, 40(4): 399-407. doi: 10.12461/PKU.DXHX202407102 shu

Teaching Classical Contents Newly: Taking Temperature–Entropy Diagram as an Example

Qiang Wu ,
Wenhua Hou

School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China

Received Date: 24 July 2024
Revised Date: 15 August 2024

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.
- Temperature-entropy diagram,
- Heat-to-work conversion efficiency,
- Thermodynamic cycles,
- New energy utilization
1. [1]
2. [2]
3. [3]
  Chu, S.; Cui, Y.; Liu, N. Nat. Mater. 2017, 16, 16.
4. [4]
  Wang, Z. L.; Jiang, T.; Xu, L. Nano Energy 2017, 39, 9.
5. [5]
  Snyder, G. J.; Toberer, E. S. Nat. Mater. 2008, 7, 105.
6. [6]
7. [7]
  Carnot, N. L. S. Reflections on the Motive Power of Heat and on Machines Fitted to Develop That Power; Tr. by Thurston, R. H. Wiley: New York, NY, USA, 1890.
8. [8]
9. [9]
  Brayton Cycle: Definition, Meaning, Efficiency, T–S, p–V Diagrams, Equations. [2024-10-21]. https://www.mechstudies.com/brayton-cycle-actual-diagram-equations-ts-ps-formula/
10. [10]
  What is Otto Cycle – pV, Ts Diagram – Definition. [2024-10-21]. https://www.thermal-engineering.org/what-is-otto-cycle-pv-ts-diagram-definition/
11. [11]
  Rankine Cycle: T-S, p-V Diagrams, Reheat, Equations, Thermal Efficiency, Examples. [2024-10-21]. https://www.mechstudies.com/rankine-cycle-actual-diagrams-equations-formula/?expand_article=1
12. [12]
  Lee, S. W.; Yang, Y.; Lee, H. W.; Ghasemi, H.; Kraemer, D.; Chen, G.; Cui, Y. Nat. Commun. 2014, 5, 3942.
13. [13]
  Jung, S. M.; Lim, Y. J.; Kwon, J.; Wei, K.; Lee, J.; Kim, K. S.; Kang, S. G.; Kim, Y. T. J. Power Sources 2022, 524, 231080.
14. [14]
  Yang, Y.; Loomis, J.; Ghasemi, H.; Lee, S. W.; Wang, Y. J.; Cui, Y.; Chen, G. Nano Lett. 2014, 14, 6578.
15. [15]
  Yang, Y.; Lee, S. W.; Ghasemi, H.; Loomis, J.; Li, X.; Kraemer, D.; Zheng, G. Y.; Cui, Y.; Chen, G. Proc. Natl. Acad. Sci. USA 2014, 111, 17011.
16. [16]
  Ding, Y.; Guo, X.; Ramirez-Meyers, K.; Zhou, Y.; Zhang, L.; Zhao, F.; Yu, G. Energy Environ. Sci. 2019, 12, 3370.
17. [17]
  Mantia, F. L.; Pasta, M.; Deshazer, H. D.; Logan, B. E.; Cui, Y. Nano Lett. 2011, 11, 1810.
18. [18]
  Carati, A.; Marino, M.; Brogioli, D. Energy 2015, 93, 984e993.
1. [1]
  Yu'ang Liu , Yuechao Wu , Junyu Huang , Tao Wang , Xiaohong Liu , Tianying Yan . Computation of Absolute Electrode Potential of Standard Hydrogen Electrode Using Ab Initio Method. University Chemistry, 2025, 40(3): 215-222. doi: 10.12461/PKU.DXHX202407112
2. [2]
  Chunguang Rong , Miaojun Xu , Xingde Xiang , Song Liu . 化学热力学熵变计算的教学探讨. University Chemistry, 2025, 40(8): 323-329. doi: 10.12461/PKU.DXHX202409146
3. [3]
  Jianchun Wang , Ruyu Xie . The Fantastical Dance of Miss Electron: Contra-Thermodynamic Electrocatalytic Reactions. University Chemistry, 2025, 40(4): 331-339. doi: 10.12461/PKU.DXHX202406082
4. [4]
  Tongqi Ye , Yanqing Wang , Qi Wang , Huaiping Cong , Xianghua Kong , Yuewen Ye . Reform of Classical Thermodynamics Curriculum from the Perspective of Computational Chemistry. University Chemistry, 2025, 40(7): 387-392. doi: 10.12461/PKU.DXHX202409128
5. [5]
  Fengmei Wang , Xin Zhang , Hong Yan , Xiangyu Xu , Guirong Wang . Inverted 'Π' Graphic Memory Method for Thermodynamic Basic Equations and the Application in Teaching Practice. University Chemistry, 2025, 40(11): 369-375. doi: 10.12461/PKU.DXHX202412087
6. [6]
  Xiaohui Li , Ze Zhang , Jingyi Cui , Juanjuan Yin . Advanced Exploration and Practice of Teaching in the Experimental Course of Chemical Engineering Thermodynamics under the “High Order, Innovative, and Challenging” Framework. University Chemistry, 2024, 39(7): 368-376. doi: 10.3866/PKU.DXHX202311027
7. [7]
  Ruming Yuan , Pingping Wu , Laiying Zhang , Xiaoming Xu , Gang Fu . Patriotic Devotion, Upholding Integrity and Innovation, Wholeheartedly Nurturing the New: The Ideological and Political Design of the Experiment on Determining the Thermodynamic Functions of Chemical Reactions by Electromotive Force Method. University Chemistry, 2024, 39(4): 125-132. doi: 10.3866/PKU.DXHX202311057
8. [8]
  Ziyu Bai , Jiaxin Zhou , Sisi Zhao , Siyu Teng , Xinxin Li , Xiting Wang , Yuwei Dong , Zhen Zhao . Delving into the Captivating Color Transformation of Cobalt: Digital Empowerment of Intelligent Visual Robot Monitoring System for Measuring Thermodynamic Parameters. University Chemistry, 2026, 41(1): 122-132. doi: 10.12461/PKU.DXHX202505103
9. [9]
  Shanying Chen , Kangning Huo , Ke Qi , Jingyi Li , Shuxin Li , Yunchao Li . A Novel Colloid Electrophoresis Experiment with the Characteristics of Resource Recycling and Inquiry-Driven Experimental Design. University Chemistry, 2024, 39(5): 274-286. doi: 10.3866/PKU.DXHX202311067
10. [10]
  Yiying Yang , Dongju Zhang . Elucidating the Concepts of Thermodynamic Control and Kinetic Control in Chemical Reactions through Theoretical Chemistry Calculations: A Computational Chemistry Experiment on the Diels-Alder Reaction. University Chemistry, 2024, 39(3): 327-335. doi: 10.3866/PKU.DXHX202309074
11. [11]
  Yue Wu , Jun Li , Bo Zhang , Yan Yang , Haibo Li , Xian-Xi Zhang . Research on Kinetic and Thermodynamic Transformations of Organic-Inorganic Hybrid Materials for Fluorescent Anti-Counterfeiting Application information: Introducing a Comprehensive Chemistry Experiment. University Chemistry, 2024, 39(6): 390-399. doi: 10.3866/PKU.DXHX202403028
12. [12]
  Ruiyun Liu , Ping Wang , Xuefei Wang , Feng Chen , Huogen Yu . Work-function-engineered Mo 4d electronic structure modulation in Mo₂C MXene cocatalyst for efficient photocatalytic H₂ evolution. Acta Physico-Chimica Sinica, 2025, 41(11): 100137-0. doi: 10.1016/j.actphy.2025.100137
13. [13]
  Yuchen Zhou , Huanmin Liu , Hongxing Li , Xinyu Song , Yonghua Tang , Peng Zhou . Designing thermodynamically stable noble metal single-atom photocatalysts for highly efficient non-oxidative conversion of ethanol into high-purity hydrogen and value-added acetaldehyde. Acta Physico-Chimica Sinica, 2025, 41(6): 100067-0. doi: 10.1016/j.actphy.2025.100067
14. [14]
  Qingtao Niu , Xinyao Xu , Weiyue Yu , Shuxiang Meng , Zhiguo Lv , Manman Jin . Exploration and Practice of Science-Education Integration in Chemical Engineering Thermodynamics Teaching for Chemical Engineering Majors: A Case of Chemical Engineering Physical Property Data Estimation and Chemical Reaction Equilibrium. University Chemistry, 2025, 40(10): 1-9. doi: 10.12461/PKU.DXHX202412029
15. [15]
  Qingcui Yang , Wen Liu , Li Cao , Chen Tang , Bing Xu , Jie Zhao . For Entropy Hurts: Life Thrives on Negative Entropy. University Chemistry, 2024, 39(9): 151-156. doi: 10.12461/PKU.DXHX202402029
16. [16]
  Kai PENG , Xinyi ZHAO , Zixi CHEN , Xuhai ZHANG , Yuqiao ZENG , Jianqing JIANG . Progress in the application of high-entropy alloys and high-entropy ceramics in water electrolysis. Chinese Journal of Inorganic Chemistry, 2025, 41(7): 1257-1275. doi: 10.11862/CJIC.20240454
17. [17]
  Liqiang Huang , Peng Lin . 数-图分析法解释仪器分析实验课程教学中的难点. University Chemistry, 2025, 40(6): 353-359. doi: 10.12461/PKU.DXHX202407074
18. [18]
  Zhike Yang , Jinfan Xu , Junhao Chen , Zheng Yang , Fei Ding , Neil Qiang Su . AI NMR Assistant: A DP5-Based Intelligent System for NMR Spectral Interpretation. University Chemistry, 2026, 41(1): 20-28. doi: 10.12461/PKU.DXHX202506013
19. [19]
  Mi Hao , Xirui Zeng , Keqi Zhang , Xin Wang , Ying Zhang . The Remarkable Transformation of Pineapple Waste: From Agricultural Byproduct to Promising Energy Resource. University Chemistry, 2026, 41(3): 322-329. doi: 10.12461/PKU.DXHX202503135
20. [20]
  Xiaojing Tian , Zhichun Huang , Qingsong Zhang , Xu Wang , Ning Yang , Nanping Deng . PNIPAm Thermo-Responsive Nanofibers Mats: Morphological Stability and Response Behavior under Cross-Linking. Acta Physico-Chimica Sinica, 2024, 40(4): 2304037-0. doi: 10.3866/PKU.WHXB202304037

Get Citation

PDF

XML

Metrics

PDF Downloads(15)
Abstract views(2085)
HTML views(293)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142