Research on recovery and utilization of waste heat in advanced compressed air energy storage system

In order to improve the efficiency of the advanced compressed air energy storage system, a method for recycling the system exhaust gas and waste heat of heat exchange working medium is proposed. A low expansion ratio expander is added to the original system. Residual heat enters the expander to work...

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Main Authors: Xiankui Wen, Dahui Yang, Jingliang Zhong, Tingyong Feng, Xiang Li
Format: Article
Language:English
Published: Elsevier 2022-07-01
Series:Energy Reports
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2352484722003298
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author Xiankui Wen
Dahui Yang
Jingliang Zhong
Tingyong Feng
Xiang Li
author_facet Xiankui Wen
Dahui Yang
Jingliang Zhong
Tingyong Feng
Xiang Li
author_sort Xiankui Wen
collection DOAJ
description In order to improve the efficiency of the advanced compressed air energy storage system, a method for recycling the system exhaust gas and waste heat of heat exchange working medium is proposed. A low expansion ratio expander is added to the original system. Residual heat enters the expander to work to increase the total output of the system. The Aspen Plus software is used to establish a four-stage advanced compressed air energy storage system model under steady-state operating conditions and perform simulation. The simulation results show the maximum increment of system output power is 4713.72 kW and its corresponding increment of system efficiency is 7.34% in comparison with no waste heat recovery, and verifies the effects of different expander exhaust pressures and pressure regulator valve outlet pressures on system efficiency and output power.
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spelling doaj.art-24b6e386fcd5422c8f6b258e114aae362022-12-22T02:52:29ZengElsevierEnergy Reports2352-48472022-07-01814361445Research on recovery and utilization of waste heat in advanced compressed air energy storage systemXiankui Wen0Dahui Yang1Jingliang Zhong2Tingyong Feng3Xiang Li4Electric Power Research Institute of Guizhou Power Grid Co., Ltd, Guiyang 550002, China; Corresponding author.School of Electrical Engineering, Guizhou University, Guiyang 550025, ChinaElectric Power Research Institute of Guizhou Power Grid Co., Ltd, Guiyang 550002, ChinaSchool of Electrical Engineering, Guizhou University, Guiyang 550025, ChinaElectric Power Research Institute of Guizhou Power Grid Co., Ltd, Guiyang 550002, ChinaIn order to improve the efficiency of the advanced compressed air energy storage system, a method for recycling the system exhaust gas and waste heat of heat exchange working medium is proposed. A low expansion ratio expander is added to the original system. Residual heat enters the expander to work to increase the total output of the system. The Aspen Plus software is used to establish a four-stage advanced compressed air energy storage system model under steady-state operating conditions and perform simulation. The simulation results show the maximum increment of system output power is 4713.72 kW and its corresponding increment of system efficiency is 7.34% in comparison with no waste heat recovery, and verifies the effects of different expander exhaust pressures and pressure regulator valve outlet pressures on system efficiency and output power.http://www.sciencedirect.com/science/article/pii/S2352484722003298Advanced compressed air energy storageEfficiencyRecovery and utilization
spellingShingle Xiankui Wen
Dahui Yang
Jingliang Zhong
Tingyong Feng
Xiang Li
Research on recovery and utilization of waste heat in advanced compressed air energy storage system
Energy Reports
Advanced compressed air energy storage
Efficiency
Recovery and utilization
title Research on recovery and utilization of waste heat in advanced compressed air energy storage system
title_full Research on recovery and utilization of waste heat in advanced compressed air energy storage system
title_fullStr Research on recovery and utilization of waste heat in advanced compressed air energy storage system
title_full_unstemmed Research on recovery and utilization of waste heat in advanced compressed air energy storage system
title_short Research on recovery and utilization of waste heat in advanced compressed air energy storage system
title_sort research on recovery and utilization of waste heat in advanced compressed air energy storage system
topic Advanced compressed air energy storage
Efficiency
Recovery and utilization
url http://www.sciencedirect.com/science/article/pii/S2352484722003298
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