Thermodynamic Analysis and Sizing of a Small Scale Solar Thermal Power System Based on Organic Rankine Cycle

Hossin, Khaled, Mahkamov, Khamid and Belgasim, Basim (2020) Thermodynamic Analysis and Sizing of a Small Scale Solar Thermal Power System Based on Organic Rankine Cycle. Journal of Sustainable Development of Energy, Water and Environment Systems, 8 (3). pp. 493-506. ISSN 1848-9257

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Official URL: https://doi.org/10.13044/j.sdewes.d7.0294

Abstract

This paper presents the feasibility analysis of a small-scale low-temperature solar organic Rankine cycle power system. The heat transfer fluid for running the organic Rankine cycle system is hot water with a temperature of 120 °C provided by an array of evacuated tube solar collectors. The performance of the solar organic Rankine cycle system was investigated using two different working fluids over a wide range of the evaporation temperature. Technical and economic indicators such as the required solar collector aperture area, the total heat transfer surface area of the heat exchangers and the volume flow ratio between the outlet and inlet of the expander are among the key parameters used to evaluate the solar organic Rankine cycle. Thermolib toolbox 5.2 in conjunction with MATLAB/Simulink was used to predict the variation of the system performance. The results showed that the solar organic Rankine cycle system is able to achieve an overall system efficiency of 6.75% using a relatively low-temperature heat source. The results also showed that the solar organic Rankine cycle system requires smaller evacuated tube solar collector and heat exchanger areas when R245fa is used as the working fluid.

Item Type: Article
Additional Information: Funding Information: The authors gratefully acknowledge the financial support provided by the Cultural Affairs Department of the Libyan Embassy in London.
Uncontrolled Keywords: Evacuated tube solar collector, Low temperature heat sources, Organic fluids, Organic Rankine Cycle, Solar energy, Thermolib
Subjects: H300 Mechanical Engineering
H800 Chemical, Process and Energy Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Rachel Branson
Date Deposited: 21 Jun 2022 15:24
Last Modified: 21 Jun 2022 15:30
URI: http://nrl.northumbria.ac.uk/id/eprint/49383

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