Simulation of CO<sub>2</sub> heat pump water heater with hybrid heat sources

LI Shanshan; LI Shuhong; ZHANG Xiaosong

doi:10.3969/j.issn.0438-1157.2014.z2.038

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Simulation of CO₂ heat pump water heater with hybrid heat sources

更新时间：2025-12-10

- Simulation of CO₂ heat pump water heater with hybrid heat sources
- CIESC Journal Issue z2, Pages: 256-264(2014)
- 作者机构：
  
  东南大学能源与环境学院,江苏,南京,210096
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2014.z2.038
  CLC： Q013.1TK519
- Online First：30 December 2014，
  
  Published：30 December 2014
- 稿件说明：
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LI Shanshan, LI Shuhong, ZHANG Xiaosong. Simulation of CO₂ heat pump water heater with hybrid heat sources[J]. CIESC Journal, 2014, (z2): 256-264. DOI: 10.3969/j.issn.0438-1157.2014.z2.038.
DOI：

LI Shanshan, LI Shuhong, ZHANG Xiaosong. Simulation of CO₂ heat pump water heater with hybrid heat sources[J]. CIESC Journal, 2014, (z2): 256-264. DOI: 10.3969/j.issn.0438-1157.2014.z2.038. DOI：

摘要

为提高热泵热水器的能源利用效率

充分利用CO2环保和独特的热力学性质等优势

设计了一种以CO2为工质的复合热源热泵热水器。针对该复合热源CO2热泵热水器的结构特点

运用集总参数法分别建立了集热/蒸发器、压缩机、气体冷却器、回热器和节流阀的稳态数学模型。通过所建模型分析了复合热源CO2热泵热水器的COP、制热量及耗电量随着不同的结构参数、压力、CO2温度、环境温度及太阳辐射强度等的变化规律。结果显示

该复合热源CO2热泵热水器在适当的结构参数、环境参数以及运行参数下能有较高的性能值

在环境温度35℃

太阳辐射强度900 W·m-2的工况下

系统的平均COP达到了6.0。

Abstract

To improve the performance of the heat pump water heater

CO2 is used to develop a heat pump water heater using the hybrid heat sources for its advantages of environment-friendly and the unique thermodynamic properties. The steady state models

including heating collector/evaporator

compressor

gas cooler

regenerator and throttle

are established according to the lumped parameter method. The operating characteristics of the CO2 heat pump water heater using the hybrid heat sources are analyzed

and the changes of COP were proposed on varied structural parameters

pressure

temperature of CO2

environmental temperature and solar radiation. The results show that a higher COP is achieved for the CO2 heat pump water heater at the appropriate structure parameters

enviromental parameters and operation parameters. The value of COP is 6.0 while the ambient temperature and the solar radiation are 35℃ and 900 W·m-2 respectively.

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Simulation of CO2 heat pump water heater with hybrid heat sources

DOI：10.3969/j.issn.0438-1157.2014.z2.038

摘要

Abstract

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Keywords

references

Simulation of CO₂ heat pump water heater with hybrid heat sources