Pressure drop analysis for organic Rankine cycle power generation system using low-grade heat sources

Pikra, Ghalya; Atmaja, Tinton Dwi; Fudholi, Ahmad; Pramana, Rakhmad Indra; Purwanto, Andri Joko; Rohmah, Nur; Sudibyo, Henny; Riyanto, Edy

doi:10.1016/j.csite.2022.101864

Case Studies in Thermal Engineering

2022

DOI: 10.1016/j.csite.2022.101864

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Pressure drop analysis for organic Rankine cycle power generation system using low-grade heat sources

Ghalya Pikra¹,

Tinton Dwi Atmaja²,

Ahmad Fudholi

et al.

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Cited by 8 publications

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“…4 The working fluid is the most important parameter in power cycles, and due to their properties variations, the cycle performance can be considerably affected in terms of thermodynamics, environment, and economics. 5,6 The mentioned organic working fluids can use in the following cycles, ORC, [7][8][9] TFC, 10,11 and PE-ORC 12,13 under specific criteria. Therefore, there are many challenges in selecting the most appropriate working fluid.…”

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Assessment of the thermal efficiency of subcritical power generation cycles using environmentally friendly fluids at various heat source temperatures

Ahmed

2022

Energy Science & Engineering

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This study aims to investigate the effect of the various heat source temperature (T max ) on thermal efficiency (η th ) for the organic rankine cycle (ORC), trilateral flash cycle (TFC), and partial evaporator (PE-ORC). For this purpose, HFE7000, HFE7100, and HFE7500 were used as working fluids (WFs). The results indicate that by using HFE7000, the maximum η th was obtained for all used power cycles and temperature ranges. Compared to HFE7100, HFE7500 has higher η th at TFC, and PE-ORC at low T max , while HFE7100 has the maximum value at high T max . The η th at T max = 353 K for TFC were 8.71%, 8.34%, and 8.59%, while for ORC 12.38%, 11.82%, and 11.71% for HFE7000, HFE7100, and HFE7500, respectively. At T max = 423 K for TFC were 17.65%, 16.26%, and 16.52%, while for ORC were 18.56%, 17.38%, and 16.59% for HFE7000, HFE7100, and HFE7500, respectively. The η th results indicate that the maximum improvement at TFC by using HFE7000, and the minimum was at HFE7100, while for ORC, the maximum was at HFE7000, and the minimum was at HFE7500. Therefore, the HFE7000 fluid behaves as normal dry fluids at any used temperature, while HFE7100 as normal dry WFs at low T max while behaving as very dry WFs at T max extremely close to its T cr . HFE7500 behaves as very dry working fluids. The η th intersections temperature was at T max = 425.2 K and T max = 455.9 K for HFE7500 and HFE7100, respectively. However, there is no η th intersection for HFE7000.

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Assessment of the thermal efficiency of subcritical power generation cycles using environmentally friendly fluids at various heat source temperatures

Ahmed

2022

Energy Science & Engineering

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A synergistic multi-objective optimization mixed nonlinear dynamic modeling approach for organic Rankine cycle (ORC) under driving cycle

Yang

Zhang

et al. 2023

Applied Thermal Engineering

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Theoretical analysis of a direct-coupled Stirling combined cooling and power system for heat recovery

Wang

Zhang

Luo

et al. 2023

Applied Thermal Engineering

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Pressure drop analysis for organic Rankine cycle power generation system using low-grade heat sources

Cited by 8 publications

References 34 publications

Assessment of the thermal efficiency of subcritical power generation cycles using environmentally friendly fluids at various heat source temperatures

Assessment of the thermal efficiency of subcritical power generation cycles using environmentally friendly fluids at various heat source temperatures

A synergistic multi-objective optimization mixed nonlinear dynamic modeling approach for organic Rankine cycle (ORC) under driving cycle

Theoretical analysis of a direct-coupled Stirling combined cooling and power system for heat recovery

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