Department of Energy, Faculty of New Science and Technologies, Semnan University, Semnan, Iran.
Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, China.
Environ Sci Pollut Res Int. 2020 Jun;27(17):20699-20724. doi: 10.1007/s11356-020-08472-2. Epub 2020 Apr 13.
The entropy generation analysis is an approach to optimize the performance of different thermal systems by investigating the related irreversibilities of the system. This paper provides a concise review of the entropy generation analysis performed for different solar thermal energy systems including solar collectors, solar heaters, solar heat exchangers, and solar stills. The mathematical formulation and the equations for calculating the entropy generation are briefly presented. Moreover, main passive techniques including the usage of nanofluids, porous materials, and inserts which are used to improve the efficiency of different solar systems are discussed. It is shown that using entropy generation minimization method is an efficient tool to find the optimal design of solar systems. The current review aims to motivate researchers in the field of solar energy for using entropy generation analysis to reduce the lost work and consequently improving the system performance.
熵产生分析是一种通过研究系统相关的不可逆性来优化不同热系统性能的方法。本文对不同的太阳能热能系统（包括太阳能集热器、太阳能热水器、太阳能换热器和太阳能蒸馏器）的熵产生分析进行了简要回顾。简要介绍了熵产生的数学公式和计算方程。此外，还讨论了主要的被动技术，包括使用纳米流体、多孔材料和插入物来提高不同太阳能系统的效率。结果表明，使用熵产生最小化方法是寻找太阳能系统最佳设计的有效工具。本综述旨在激励太阳能领域的研究人员使用熵产生分析来减少损失的功，从而提高系统性能。
