Numerical investigation of CO2 heat pump water heater performance

Muhamad Yulianto; Takaoki Suzuki; Yoichi Miyaoka; Keisuke Ohno; Niccolo Giannetti; Kiyoshi Saito; Seiichi Yamaguchi

doi:10.18462/iir.gl.2020.1183

Numerical investigation of CO2 heat pump water heater performance

Muhamad Yulianto, Takaoki Suzuki, Yoichi Miyaoka, Keisuke Ohno, Niccolo Giannetti, Kiyoshi Saito, Seiichi Yamaguchi

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	https://doi.org/10.18462/iir.gl.2020.1183
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月 7 → 2020 12月 9

出版物シリーズ

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

Conference

Conference	14th IIR Gustav-Lorentzen Conference on Natural Fluids, GL 2020
国/地域	Japan
City	Virtual, Kyoto
Period	20/12/7 → 20/12/9

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

UN SDG

この成果は、次の持続可能な開発目標に貢献しています

文献へのアクセス

10.18462/iir.gl.2020.1183

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引用スタイル

Yulianto, M., Suzuki, T., Miyaoka, Y., Ohno, K., Giannetti, N., Saito, K., & Yamaguchi, S. (2020). Numerical investigation of CO2 heat pump water heater performance. In 14th IIR Gustav-Lorentzen Conference on Natural Fluids, GL 2020 - Proceedings (pp. 61-66). (Refrigeration Science and Technology; Vol. 2020-December). International Institute of Refrigeration. https://doi.org/10.18462/iir.gl.2020.1183

Yulianto, M, Suzuki, T, Miyaoka, Y, Ohno, K, Giannetti, N , Saito, K & Yamaguchi, S 2020, Numerical investigation of CO2 heat pump water heater performance. in 14th IIR Gustav-Lorentzen Conference on Natural Fluids, GL 2020 - Proceedings. Refrigeration Science and Technology, vol. 2020-December, International Institute of Refrigeration, pp. 61-66, 14th IIR Gustav-Lorentzen Conference on Natural Fluids, GL 2020, Virtual, Kyoto, Japan, 20/12/7. https://doi.org/10.18462/iir.gl.2020.1183

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title = "Numerical investigation of CO2 heat pump water heater performance",

abstract = "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",

keywords = "Carbon Dioxide, COP, Energy Consumption, Heat Pump Water Heater, Weather Condition",

author = "Muhamad Yulianto and Takaoki Suzuki and Yoichi Miyaoka and Keisuke Ohno and Niccolo Giannetti and Kiyoshi Saito and Seiichi Yamaguchi",

note = "Publisher Copyright: {\textcopyright} 2020 International Institute of Refrigeration. All rights reserved. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.; 14th IIR Gustav-Lorentzen Conference on Natural Fluids, GL 2020 ; Conference date: 07-12-2020 Through 09-12-2020",

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doi = "10.18462/iir.gl.2020.1183",

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AU - Suzuki, Takaoki

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AU - Giannetti, Niccolo

AU - Saito, Kiyoshi

AU - Yamaguchi, Seiichi

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Y1 - 2020

N2 - 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

AB - 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

KW - Carbon Dioxide

KW - COP

KW - Energy Consumption

KW - Heat Pump Water Heater

KW - Weather Condition

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Numerical investigation of CO2 heat pump water heater performance

抄録

出版物シリーズ

Conference

ASJC Scopus subject areas

UN SDG

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