Recent progress in organic Rankine cycle targeting utilisation of ultra-low-temperature heat towards carbon neutrality

Cao, Jingyu; Zheng, Lingling; Zheng, Zhanying; Peng, Jinqing; Hu, Mingke; Wang, Qiliang; Leung, Michael K.H.

doi:10.1016/j.applthermaleng.2023.120903

Cited by 19 publications

(2 citation statements)

References 225 publications

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“…In that case, some typical fluids or classes might include NH 3 , HFO, HCFO (e.g., R1234yf, R1233zd(E)), and natural refrigerants (e.g., hydrocarbons, carbon dioxide, etc.) where the historical development of working fluid for ORC technology could be found in this article [21,81]. In thermodynamics, the selection of working fluid could be conventionally classified as dry, wet, and isentropic efficiency.…”

Section: Future Directions Of Researchmentioning

confidence: 99%

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Design, Integration, and Control of Organic Rankine Cycles with Thermal Energy Storage and Two-Phase Expansion System Utilizing Intermittent and Fluctuating Heat Sources—A Review

et al. 2023

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In order to lessen reliance on fossil fuels, a rise in interest in the utilization of fluctuating and intermittent heat sources derived from renewable energy (such as solar thermal, ocean thermal, and geothermal) and waste heat has been observed. These heat sources could be used to generate electricity at relatively low and medium temperatures, for example, through the organic Rankine cycle (ORC). In some case studies, various approaches have been developed to deal with and design ORCs in the desired operating condition utilizing suitable working fluids. This article aims to review some designs and integrated systems of ORC with thermal energy storage (TES) and a two-phase expansion system focusing on the utilization of medium- and low-temperature heat sources in which some subcritical ORCs are presented. Moreover, several possible control systems (both conventional and advanced ones) of ORC with TES and a two-phase expansion system are reported and compared. At the end of this article, the possible future developments of design and control systems are discussed to describe advanced ORC for utilizing low-grade heat sources. This study aims to provide researchers and engineers with an insight into the challenges involved in this process, making industrialization of ORC technology more extensive, in particular when combined with TES and a two-phase expansion system.

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Section: Future Directions Of Researchmentioning

confidence: 99%

“…A recent review article discussed the progress and effort for development of ultralow temperature ORC utilizing heat at or below 150 • C [21]. In addition, another article provided overview on exergy assessment of ORC for waste heat recovery (WHR) [22].…”

Section: Introductionmentioning

confidence: 99%

Design, Integration, and Control of Organic Rankine Cycles with Thermal Energy Storage and Two-Phase Expansion System Utilizing Intermittent and Fluctuating Heat Sources—A Review

et al. 2023

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Efficiency enhancement of a combined cycle power plant by thermal integration of multiple waste heat streams with organic Rankine cycle

Talib,

Khan,

Khurram

et al. 2024

Asia-Pacific J Chem Eng

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The study investigated the efficiency improvement of a 9.5 MW gas engine‐based combined cycle power plant utilizing multiple waste heat streams in an organic Rankine cycle. Four different waste heat sources were considered: I) boiler stack gas, II) engine jacket water, III) boiler steam, and IV) engines' exhaust gas. Besides, three different organic fluids; R245fa, R134a, and R1234ze(Z) were employed to find the best working fluid in the given operating conditions. The performance analysis of the ORC revealed that R245fa is a suitable potential fluid for cases I and II, whereas R134a performs better for cases III and IV. Integrating the ORC with the boiler stack using R245fa at 8 barg provided an additional 16.5% waste gas heat recovery. It increased the net electric efficiency of the existing plant by 0.7%. The jacket water heat recovery further improved the net electric efficiency by 2.1%. By integrating both streams with the ORC in the existing system, the net electrical efficiency was increased from 42.6% to 45.3%. The estimated payback period for the jacket water heat recovery scenario utilizing Chinese ORC equipment was 9.3 years. However, this period was significantly reduced to 4.6 years for general industry applications, rendering it economically viable.

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Low-grade thermal energy utilization: Technologies and applications

Ji,

Liu,

Romagnoli

et al. 2024

Applied Thermal Engineering

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Recent progress in organic Rankine cycle targeting utilisation of ultra-low-temperature heat towards carbon neutrality

Cited by 19 publications

References 225 publications

Design, Integration, and Control of Organic Rankine Cycles with Thermal Energy Storage and Two-Phase Expansion System Utilizing Intermittent and Fluctuating Heat Sources—A Review

Design, Integration, and Control of Organic Rankine Cycles with Thermal Energy Storage and Two-Phase Expansion System Utilizing Intermittent and Fluctuating Heat Sources—A Review

Efficiency enhancement of a combined cycle power plant by thermal integration of multiple waste heat streams with organic Rankine cycle

Low-grade thermal energy utilization: Technologies and applications

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