Numerical investigation of CO2 heat pump water heater performance

研究成果: Conference contribution

抄録

This study presents a preliminary investigation of the performance of a Heat Pump Water Heater (HPWH) that uses CO2 as refrigerant. The global market of this technology is led by Japan and several units are being installed all around the world under different climates. The main challenge for an efficient spreading of this technology is to maintain the excellent performance of CO2 HPWH under a broad variety of weather conditions. A numerical model was developed to flexibly investigate the performance of the CO2 HPWH under various distributions of inlet air temperature at the evaporator and inlet water temperature_in gas cooler. The simulation results are firstly compared with those from a general pinch point analysis. The Result show that the highest water temperature inlet and lowest air temperature inlet will produce lowest COP and Highest LCCP Contribution

本文言語English
ホスト出版物のタイトル14th IIR Gustav-Lorentzen Conference on Natural Fluids, GL 2020 - Proceedings
出版社International Institute of Refrigeration
ページ61-66
ページ数6
ISBN(電子版)9782362150401
DOI
出版ステータスPublished - 2020
イベント14th IIR Gustav-Lorentzen Conference on Natural Fluids, GL 2020 - Virtual, Kyoto, Japan
継続期間: 2020 12 72020 12 9

出版物シリーズ

名前Refrigeration Science and Technology
2020-December
ISSN(印刷版)0151-1637

Conference

Conference14th IIR Gustav-Lorentzen Conference on Natural Fluids, GL 2020
国/地域Japan
CityVirtual, Kyoto
Period20/12/720/12/9

ASJC Scopus subject areas

  • 制御およびシステム工学
  • 電子工学および電気工学
  • 機械工学
  • 凝縮系物理学

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