Combined SCAES-ORC, A New Concept of Electricity Storage and Co-generation

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Abstract

Subcooled compressed air energy storage (SCAES) technology has newly been introduced. This system stores electricity as compressed air and co-generates heat, cold and electricity as discharging. In this work, it is proposed to use the heat generation potential of the system to drive an Organic Rankine Cycle (ORC) to increase the electrical efficiency of the SCAES. This proposal is modeled, simulated and analyzed. It is well-proved that the combined SCAES-ORC has better electricity and cold production performances about 20% compared to the SCAES system. In addition, due to the heat production of the ORC unit, the heat output of the system is not affected significantly.
Original languageEnglish
Title of host publicationProceedings of 2019 9th International Conference on Power and Energy Systems (ICPES 2019)
Number of pages5
PublisherIEEE
Publication dateJun 2020
Article number9105436
ISBN (Electronic)978-1-7281-2658-6
DOIs
Publication statusPublished - Jun 2020
Event2019 9th International Conference on Power and Energy Systems (ICPES) - Perth, Australia
Duration: 10 Dec 201912 Dec 2019

Conference

Conference2019 9th International Conference on Power and Energy Systems (ICPES)
CountryAustralia
CityPerth
Period10/12/201912/12/2019

Keywords

  • Subcooled compressed air energy storage system
  • Organic Rankine cycle
  • District heating
  • District cooling
  • Co-generation

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