Thermodynamic and thermoeconomic analysis of solar derived ORC with storage system utilizing PCM

IF 6.4 2区工程技术 Q1 THERMODYNAMICS

Case Studies in Thermal Engineering Pub Date : 2025-02-24 DOI:10.1016/j.csite.2025.105942

Rahim Zahedi, Abolfazl Ahmadi

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引用次数: 0

Abstract

Organic Rankine cycle (ORC) is an appropriate technology for converting low quality thermal sources into electricity. In this research, ORC with solar vacuum tube collector drive has been simulated and studied in terms of energy, exergy, and economic exergy. Thereupon, different issues such as input temperature and pressure to the turbine, temperature difference of organic cycle evaporator pinch, and solar flux have been assessed. The results indicate that the energy and exergy efficiency equals to 44.3 and 49.7 respectively and the value of output work and irreversibility also equals to 50.6 and 719.1 kW respectively. Due to the high initial costs and high costs of destruction, solar collector and storage tank are the most important components regarding exergo-economic issues. The analytical results indicate that the increase of evaporator temperature will have positive effects on the cycle performance and the increase of pinch temperature will have negative effects on system performance. From economic point of view, the increase of evaporator and pinch temperature will decrease total costs. Moreover, change in solar energy flux improves the system performance in economic terms and leads to an increase in energy and exergy efficiency.

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来源期刊

Case Studies in Thermal Engineering Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

8.60

自引率

11.80%

发文量

812

审稿时长

76 days

期刊介绍： Case Studies in Thermal Engineering provides a forum for the rapid publication of short, structured Case Studies in Thermal Engineering and related Short Communications. It provides an essential compendium of case studies for researchers and practitioners in the field of thermal engineering and others who are interested in aspects of thermal engineering cases that could affect other engineering processes. The journal not only publishes new and novel case studies, but also provides a forum for the publication of high quality descriptions of classic thermal engineering problems. The scope of the journal includes case studies of thermal engineering problems in components, devices and systems using existing experimental and numerical techniques in the areas of mechanical, aerospace, chemical, medical, thermal management for electronics, heat exchangers, regeneration, solar thermal energy, thermal storage, building energy conservation, and power generation. Case studies of thermal problems in other areas will also be considered.