The experimental study of commercial air source CO2 heat pump hot water system

Wang Shouguo; Meng Tao; Cao Feng; Xing Ziwen

The experimental study of commercial air source CO₂ heat pump hot water system

Wang Shouguo
, Meng Tao
, Cao Feng
, Xing Ziwen

School of Energy and Power Engineering

Xi'an Jiaotong University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Base on the thermodynamic characteristic of transcritical CO₂, compared to conventional refrigerants, CO₂ heat pump water heater can still maintain a relatively high value of the COP when it produce hot water with temperatures up to 95°C without operational problems, however, optimization of system must be necessary. In this paper, we presented the experiment exploration and study about systems optimization of commercial air source CO₂ heat pump hot water(heat production more than 50kW), detailed analyzed the factors resulting heating COP decline as the outlet water temperature increases , and gave some way to improve heating COP. Meanwhile, utilizing the data of performance experiments at different outlet water temperature (55~80°C) and ambient temperature (-15~35°C), we fitted the optimal pressure equation to control the heat pump hot water in optimal operating condition.

Original language	English
Title of host publication	5th Asian Conference on Refrigeration and Air Conditioning, ACRA 2010 - Green Breeze from Asia
Subtitle of host publication	Frontiers of Refrigerants, Heat Transfer and System
Publisher	Japan Society of Refrigeration and Air Conditioning Engineering (JSRAE)
ISBN (Electronic)	9781634391252
State	Published - 2010
Event	5th Asian Conference on Refrigeration and Air Conditioning - Green Breeze from Asia: Frontiers of Refrigerants, Heat Transfer and System, ACRA 2010 - Tokyo, Japan Duration: 7 Jun 2010 → 9 Jun 2010

Publication series

Name	5th Asian Conference on Refrigeration and Air Conditioning, ACRA 2010 - Green Breeze from Asia: Frontiers of Refrigerants, Heat Transfer and System

Conference

Conference	5th Asian Conference on Refrigeration and Air Conditioning - Green Breeze from Asia: Frontiers of Refrigerants, Heat Transfer and System, ACRA 2010
Country/Territory	Japan
City	Tokyo
Period	7/06/10 → 9/06/10

Keywords

Air source
Commercial
Heat pump water heater
Optimal pressure
Performance
System control

Cite this

Shouguo, W., Tao, M., Feng, C., & Ziwen, X. (2010). The experimental study of commercial air source CO₂ heat pump hot water system. In 5th Asian Conference on Refrigeration and Air Conditioning, ACRA 2010 - Green Breeze from Asia: Frontiers of Refrigerants, Heat Transfer and System (5th Asian Conference on Refrigeration and Air Conditioning, ACRA 2010 - Green Breeze from Asia: Frontiers of Refrigerants, Heat Transfer and System). Japan Society of Refrigeration and Air Conditioning Engineering (JSRAE).

Shouguo, Wang ; Tao, Meng ; Feng, Cao et al. / The experimental study of commercial air source CO₂ heat pump hot water system. 5th Asian Conference on Refrigeration and Air Conditioning, ACRA 2010 - Green Breeze from Asia: Frontiers of Refrigerants, Heat Transfer and System. Japan Society of Refrigeration and Air Conditioning Engineering (JSRAE), 2010. (5th Asian Conference on Refrigeration and Air Conditioning, ACRA 2010 - Green Breeze from Asia: Frontiers of Refrigerants, Heat Transfer and System).

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title = "The experimental study of commercial air source CO2 heat pump hot water system",

abstract = "Base on the thermodynamic characteristic of transcritical CO2, compared to conventional refrigerants, CO2 heat pump water heater can still maintain a relatively high value of the COP when it produce hot water with temperatures up to 95°C without operational problems, however, optimization of system must be necessary. In this paper, we presented the experiment exploration and study about systems optimization of commercial air source CO2 heat pump hot water(heat production more than 50kW), detailed analyzed the factors resulting heating COP decline as the outlet water temperature increases , and gave some way to improve heating COP. Meanwhile, utilizing the data of performance experiments at different outlet water temperature (55\textasciitilde{}80°C) and ambient temperature (-15\textasciitilde{}35°C), we fitted the optimal pressure equation to control the heat pump hot water in optimal operating condition.",

keywords = "Air source, Commercial, Heat pump water heater, Optimal pressure, Performance, System control",

author = "Wang Shouguo and Meng Tao and Cao Feng and Xing Ziwen",

note = "Publisher Copyright: Copyright {\textcopyright} 2010 by the Japan Society of Refrigeration and Air Conditioning Engineering (JSRAE).; 5th Asian Conference on Refrigeration and Air Conditioning - Green Breeze from Asia: Frontiers of Refrigerants, Heat Transfer and System, ACRA 2010 ; Conference date: 07-06-2010 Through 09-06-2010",

year = "2010",

language = "英语",

series = "5th Asian Conference on Refrigeration and Air Conditioning, ACRA 2010 - Green Breeze from Asia: Frontiers of Refrigerants, Heat Transfer and System",

publisher = "Japan Society of Refrigeration and Air Conditioning Engineering (JSRAE)",

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Shouguo, W, Tao, M, Feng, C & Ziwen, X 2010, The experimental study of commercial air source CO₂ heat pump hot water system. in 5th Asian Conference on Refrigeration and Air Conditioning, ACRA 2010 - Green Breeze from Asia: Frontiers of Refrigerants, Heat Transfer and System. 5th Asian Conference on Refrigeration and Air Conditioning, ACRA 2010 - Green Breeze from Asia: Frontiers of Refrigerants, Heat Transfer and System, Japan Society of Refrigeration and Air Conditioning Engineering (JSRAE), 5th Asian Conference on Refrigeration and Air Conditioning - Green Breeze from Asia: Frontiers of Refrigerants, Heat Transfer and System, ACRA 2010, Tokyo, Japan, 7/06/10.

The experimental study of commercial air source CO₂ heat pump hot water system. / Shouguo, Wang; Tao, Meng; Feng, Cao et al.
5th Asian Conference on Refrigeration and Air Conditioning, ACRA 2010 - Green Breeze from Asia: Frontiers of Refrigerants, Heat Transfer and System. Japan Society of Refrigeration and Air Conditioning Engineering (JSRAE), 2010. (5th Asian Conference on Refrigeration and Air Conditioning, ACRA 2010 - Green Breeze from Asia: Frontiers of Refrigerants, Heat Transfer and System).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - The experimental study of commercial air source CO2 heat pump hot water system

AU - Shouguo, Wang

AU - Tao, Meng

AU - Feng, Cao

AU - Ziwen, Xing

PY - 2010

Y1 - 2010

N2 - Base on the thermodynamic characteristic of transcritical CO2, compared to conventional refrigerants, CO2 heat pump water heater can still maintain a relatively high value of the COP when it produce hot water with temperatures up to 95°C without operational problems, however, optimization of system must be necessary. In this paper, we presented the experiment exploration and study about systems optimization of commercial air source CO2 heat pump hot water(heat production more than 50kW), detailed analyzed the factors resulting heating COP decline as the outlet water temperature increases , and gave some way to improve heating COP. Meanwhile, utilizing the data of performance experiments at different outlet water temperature (55~80°C) and ambient temperature (-15~35°C), we fitted the optimal pressure equation to control the heat pump hot water in optimal operating condition.

AB - Base on the thermodynamic characteristic of transcritical CO2, compared to conventional refrigerants, CO2 heat pump water heater can still maintain a relatively high value of the COP when it produce hot water with temperatures up to 95°C without operational problems, however, optimization of system must be necessary. In this paper, we presented the experiment exploration and study about systems optimization of commercial air source CO2 heat pump hot water(heat production more than 50kW), detailed analyzed the factors resulting heating COP decline as the outlet water temperature increases , and gave some way to improve heating COP. Meanwhile, utilizing the data of performance experiments at different outlet water temperature (55~80°C) and ambient temperature (-15~35°C), we fitted the optimal pressure equation to control the heat pump hot water in optimal operating condition.

KW - Air source

KW - Commercial

KW - Heat pump water heater

KW - Optimal pressure

KW - Performance

KW - System control

UR - https://www.scopus.com/pages/publications/85083944019

M3 - 会议稿件

AN - SCOPUS:85083944019

T3 - 5th Asian Conference on Refrigeration and Air Conditioning, ACRA 2010 - Green Breeze from Asia: Frontiers of Refrigerants, Heat Transfer and System

BT - 5th Asian Conference on Refrigeration and Air Conditioning, ACRA 2010 - Green Breeze from Asia

PB - Japan Society of Refrigeration and Air Conditioning Engineering (JSRAE)

T2 - 5th Asian Conference on Refrigeration and Air Conditioning - Green Breeze from Asia: Frontiers of Refrigerants, Heat Transfer and System, ACRA 2010

Y2 - 7 June 2010 through 9 June 2010

ER -

Shouguo W, Tao M, Feng C, Ziwen X. The experimental study of commercial air source CO₂ heat pump hot water system. In 5th Asian Conference on Refrigeration and Air Conditioning, ACRA 2010 - Green Breeze from Asia: Frontiers of Refrigerants, Heat Transfer and System. Japan Society of Refrigeration and Air Conditioning Engineering (JSRAE). 2010. (5th Asian Conference on Refrigeration and Air Conditioning, ACRA 2010 - Green Breeze from Asia: Frontiers of Refrigerants, Heat Transfer and System).