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Entropy generation analysis of different solar thermal systems
Saman Rashidi1, Liu Yang2, Ali Khoosh-Ahang3
1Department of Energy, Faculty of New Science and Technologies, Semnan University, Semnan, Iran. samanrashidi@semnan.ac.ir.
Environmental Science and Pollution Research International
|April 15, 2020
Summary
Entropy generation analysis optimizes solar thermal systems by examining irreversibilities. This review highlights methods and passive techniques like nanofluids to improve solar energy efficiency and reduce energy loss.
Area of Science:
- Thermal Engineering
- Renewable Energy Systems
- Thermodynamics
Background:
- Entropy generation analysis quantifies irreversibilities in thermal systems.
- Solar thermal energy systems (collectors, heaters, heat exchangers, stills) are crucial for renewable energy.
- Optimizing these systems is vital for energy efficiency and sustainability.
Purpose of the Study:
- To review entropy generation analysis applications in various solar thermal energy systems.
- To present the mathematical framework for entropy generation calculations.
- To discuss passive techniques for enhancing solar system performance.
Main Methods:
- Review of existing literature on entropy generation analysis in solar thermal applications.
- Presentation of mathematical formulations for entropy generation.
- Discussion of passive enhancement techniques (nanofluids, porous materials, inserts).
Main Results:
- Entropy generation analysis is an effective tool for optimizing solar thermal system design.
- Passive techniques like nanofluids and porous materials significantly improve system efficiency.
- Minimizing entropy generation leads to reduced lost work and enhanced system performance.
Conclusions:
- Entropy generation minimization is a powerful approach for designing efficient solar thermal systems.
- Further research utilizing entropy generation analysis can drive advancements in solar energy technology.
- This review encourages researchers to adopt entropy generation analysis for improved solar energy utilization.
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