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Review

Supercritical Carbon Dioxide(s-CO2) Power Cycle for Waste Heat Recovery: A Review from Thermodynamic Perspective

School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
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Processes 2020, 8(11), 1461; https://doi.org/10.3390/pr8111461
Received: 11 October 2020 / Revised: 10 November 2020 / Accepted: 13 November 2020 / Published: 15 November 2020
(This article belongs to the Section Energy Systems)
Supercritical CO2 power cycles have been deeply investigated in recent years. However, their potential in waste heat recovery is still largely unexplored. This paper presents a critical review of engineering background, technical challenges, and current advances of the s-CO2 cycle for waste heat recovery. Firstly, common barriers for the further promotion of waste heat recovery technology are discussed. Afterwards, the technical advantages of the s-CO2 cycle in solving the abovementioned problems are outlined by comparing several state-of-the-art thermodynamic cycles. On this basis, current research results in this field are reviewed for three main applications, namely the fuel cell, internal combustion engine, and gas turbine. For low temperature applications, the transcritical CO2 cycles can compete with other existing technologies, while supercritical CO2 cycles are more attractive for medium- and high temperature sources to replace steam Rankine cycles. Moreover, simple and regenerative configurations are more suitable for transcritical cycles, whereas various complex configurations have advantages for medium- and high temperature heat sources to form cogeneration system. Finally, from the viewpoints of in-depth research and engineering applications, several future development directions are put forward. This review hopes to promote the development of s-CO2 cycles for waste heat recovery. View Full-Text
Keywords: supercritical carbon dioxide power cycle; waste heat recovery; thermodynamic cycle supercritical carbon dioxide power cycle; waste heat recovery; thermodynamic cycle
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MDPI and ACS Style

Liu, L.; Yang, Q.; Cui, G. Supercritical Carbon Dioxide(s-CO2) Power Cycle for Waste Heat Recovery: A Review from Thermodynamic Perspective. Processes 2020, 8, 1461. https://doi.org/10.3390/pr8111461

AMA Style

Liu L, Yang Q, Cui G. Supercritical Carbon Dioxide(s-CO2) Power Cycle for Waste Heat Recovery: A Review from Thermodynamic Perspective. Processes. 2020; 8(11):1461. https://doi.org/10.3390/pr8111461

Chicago/Turabian Style

Liu, Liuchen, Qiguo Yang, and Guomin Cui. 2020. "Supercritical Carbon Dioxide(s-CO2) Power Cycle for Waste Heat Recovery: A Review from Thermodynamic Perspective" Processes 8, no. 11: 1461. https://doi.org/10.3390/pr8111461

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