Experimental Study on the Performance of Waterless Floor Heating and Hot Water Dual Supply Air-Source Heat Pump System

Niu Jianhui; An Zelong; Zhang Chenyang; Wu Yuzhou; Zhang Yujin

doi:10.12465/issn.0253-4339.20250301003

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Experimental Study on the Performance of Waterless Floor Heating and Hot Water Dual Supply Air-Source Heat Pump System

更新时间：2026-06-01

- Experimental Study on the Performance of Waterless Floor Heating and Hot Water Dual Supply Air-Source Heat Pump System
- Journal of Refrigeration Vol. 47, Issue 3, Pages: 142-149(2026)
- 作者机构：
  
  河北省可再生能源供热工程技术中心河北建筑工程学院张家口 075000
- 作者简介：
- 基金信息：
- DOI：10.12465/issn.0253-4339.20250301003
  CLC： TB61⁺1;TU832.2
- Received：01 March 2025，
  
  Revised：2025-03-31，
  
  Accepted：26 May 2025，
  
  Published：16 June 2026
- 稿件说明：
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牛建会,安泽龙,张晨旸等.无水地暖热水两联供空气源热泵实验研究[J].制冷学报,2026,47(03):142-149.

Niu Jianhui An Zelong Zhang Chenyang Wu Yuzhou Zhang Yujin.Experimental Study on the Performance of Waterless Floor Heating and Hot Water Dual Supply Air-Source Heat Pump System[J].Journal of Refrigeration,2026,47(03):142-149.
牛建会,安泽龙,张晨旸等.无水地暖热水两联供空气源热泵实验研究[J].制冷学报,2026,47(03):142-149. DOI： 10.12465/issn.0253-4339.20250301003.

Niu Jianhui An Zelong Zhang Chenyang Wu Yuzhou Zhang Yujin.Experimental Study on the Performance of Waterless Floor Heating and Hot Water Dual Supply Air-Source Heat Pump System[J].Journal of Refrigeration,2026,47(03):142-149. DOI： 10.12465/issn.0253-4339.20250301003.

摘要

本文提出了一种新型的无水地暖热水两联供空气源热泵系统，其特征是制冷剂直接在地暖埋管中冷凝，同时高温的制冷剂在外绕盘管式热水器中进行热交换制取生活热水，实现室内供暖和生活热水供应。加工出样机并在单独地板采暖、两联供及单独热水器3种模式下进行测试。结果表明：3种模式下房间地板表面温度均维持在25~33 ℃，空气温度维持在18~22 ℃。毛细管地板具有蓄热作用，当停止向房间供热约113~245 min时，房间空气温度依然保持在18 ℃以上；在优先满足室内采暖要求下，该系统在环境温度为-5 ℃时，经过572.3 min，热水器水温升至45 ℃；系统制热量和EER最低分别达到2.70 kW和3.55。

Abstract

A new type of air-source heat pump system is proposed， combining domestic hot water and waterless floor heating that is achieved by the direct condensation of the refrigerant in buried pipes. The high-temperature refrigerant is exchanged in the wrapped coil water heater to produce domestic hot water. The prototype was assembled and tested in three modes： standalone floor heating， dual supply， and standalone domestic hot water. The experimental results show that in all three cases， the surface temperature of the floor was maintained between 25 ℃ and 33 ℃， and the air temperature was maintained between 18 ℃ and 22 ℃. Due to the heat storage effect of the capillary floor， the air temperature in the room remained above 18 ℃ within 113-245 min after terminating the system. At an ambient temperature of -5 ℃， after 572.3 min， the water temperature of the water heater rose to 45 ℃. The minimum system heating capacity and energy efficiency ratio （EER） can reach 2.70 kW and 3.55， respectively.

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