Experimental thermal performance comparison of the same ORC system operated in Harbin and Taipei

Jian Liu, Yaning Zhang, Hongye Li, Wenke Zhao, Tzu-Chen Hung and Bingxi Li

Energy, 2023, vol. 275, issue C

Abstract: Low-temperature cold source conditions can significantly improve the thermal performances of organic Rankine cycle (ORC) systems. In this study, the thermal performances of an ORC system operated in Harbin at different working-fluid mass flow rates (0.037–0.188 kg/s) were experimentally investigated, and they were compared with the performances of the same ORC system operated in Taipei which had much higher cold source temperature (30.4 °C vs. 9.6 °C). The results showed that the thermal efficiency and electricity generation efficiency of the ORC system in Harbin increased initially and then decreased (3.1%–6.4% and 2.8%–4.5%, respectively) with the increases in the liquid working-fluid mass flow rates. As compared with the system operated in Taipei, the system operated in Harbin had higher thermal efficiency (4.7% vs. 4.5%, increased by 5.2%) and electricity generation efficiency (3.1% vs. 2.9%, increased by 8.6%) because the lower cooling water temperature resulted in a lower condensation pressure. The results obtained from this study not only compare the thermal performances of the same ORC system operated in different regions but also demonstrate the potential applications of ORC systems in cold areas.

Keywords: ORC; Experimental system; Thermal performance; Harbin; Taipei (search for similar items in EconPapers)
Date: 2023
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:275:y:2023:i:c:s0360544223007971

DOI: 10.1016/j.energy.2023.127403

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