Thermodynamic Performance Analysis of a Triple-loop Air-source Heat-pump Heat Recovery System

Ma Anna; Ma Guoyuan; Wang Lei; Zhou Feng; Jiang Mingjian; Yan Xianghui

doi:10.3969/j.issn.0253-4339.2019.04.017

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Thermodynamic Performance Analysis of a Triple-loop Air-source Heat-pump Heat Recovery System

更新时间：2024-07-18

- Thermodynamic Performance Analysis of a Triple-loop Air-source Heat-pump Heat Recovery System
- Journal of Refrigeration Vol. 40, Issue 4, (2019)
- 作者机构：
  
  北京工业大学环境与能源工程学院
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0253-4339.2019.04.017
  CLC：
- Published：2019
- 稿件说明：
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Ma Anna, Ma Guoyuan, Wang Lei, et al. Thermodynamic Performance Analysis of a Triple-loop Air-source Heat-pump Heat Recovery System[J]. Journal of refrigeration, 2019, 40(4).
DOI：

Ma Anna, Ma Guoyuan, Wang Lei, et al. Thermodynamic Performance Analysis of a Triple-loop Air-source Heat-pump Heat Recovery System[J]. Journal of refrigeration, 2019, 40(4). DOI： 10.3969/j.issn.0253-4339.2019.04.017.

摘要

为了提高大温差工况下空气源热泵系统的性能，本文提出一种三重回路空气源热泵系统的方案，并以回收建筑空调排风能量为基础，搭建了三重回路系统性能测试平台，实验测试了单回路与三重回路热泵系统在冬、夏季不同室外温度工况下的性能。结果表明：无论冬、夏季工况，三重回路系统在各工况下的整体性能均明显高于单回路系统，且随室内外温差的增大，三重回路系统可明显改善传统空气源热泵存在的压比过大、系统性能急剧降低等问题。冬季工况下，三重回路系统COP的增长率可达1.88，室内外温差为40 ℃时，三重回路比单回路COP提高54.8%；夏季工况下，三重回路COP增长率可达89.8%，室内外温差为13 ℃时，三重回路比单回路COP提高74.6%。

Abstract

To improve the performance of an air-source heat pump system under large temperature difference conditions

this paper proposed a triple-loop air-source heat pump system scheme. An energy recovery performance test platform was set up according to the exhaust energy recovery in a public building air-conditioning system. The performances of the single- and triple-loop heat-pump systems were tested through experiments under different outdoor-temperature conditions in winter and summer. The results show that the overall performance of the triple-loop system was significantly higher than that of the single-loop system under all operating conditions. With the increase in the indoor and outdoor temperature difference

the triple-loop heat pump system could significantly minimize the problems of excessive compression ratio and system performance degradation of the traditional air-source heat pump. Under winter conditions

the increase rate of the coefficient of performance (COP) of the triple-loop system reached up to 1.88. When the indoor and outdoor temperature difference was 40 ℃

the COP of the triple-loop system was 54.8% higher than that of the single-loop system. Under summer conditions

the increase rate of the COP of the triple-loop system reached 89.8%. When the indoor and outdoor temperature difference was 13 ℃

the COP of the triple-loop system was 74.6% higher than that of the single-loop system.

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Related Institution

Tianjin Key Laboratory of Refrigeration Technology，Tianjin University of Commerce

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Tianjin University of Commerce, Refrigeration Engineering Research Center of Ministry of Education of People’s Republic of China, Tianjin Key Laboratory of Refrigeration Technology, Tianjin Refrigeration Engineering Technology Center

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