Experimental Study on Domestic Heat Pump Water Heater with Waste Heat Recovery

Fan Xiusong; Xu Shuxue; Ma Guoyuan; Shao Yueyue

doi:10.3969/j.issn.0253-4339.2019.03.079

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Experimental Study on Domestic Heat Pump Water Heater with Waste Heat Recovery

更新时间：2024-07-18

- Experimental Study on Domestic Heat Pump Water Heater with Waste Heat Recovery
- Journal of Refrigeration Vol. 40, Issue 3, (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.0253-4339.2019.03.079
  CLC：
- Published：2019
- 稿件说明：
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Fan Xiusong, Xu Shuxue, Ma Guoyuan, et al. Experimental Study on Domestic Heat Pump Water Heater with Waste Heat Recovery[J]. Journal of refrigeration, 2019, 40(3).
DOI：

Fan Xiusong, Xu Shuxue, Ma Guoyuan, et al. Experimental Study on Domestic Heat Pump Water Heater with Waste Heat Recovery[J]. Journal of refrigeration, 2019, 40(3). DOI： 10.3969/j.issn.0253-4339.2019.03.079.

摘要

为回收家庭洗浴废水中的废热，提高能源利用率，设计了一种带废热回收的热泵热水装置并搭建了实验台进行实验研究。在进水温度16 ℃，出水温度36~46 ℃时进行实验测试，研究制冷剂充注量、出水量、制热量、制热COP等参数随出水温度的变化规律。实验结果表明，提高制冷剂充注量有利于制热量、制热COP的稳定，在最小的制冷剂充注量下，获得最大制热量为7.9 kW，制热COP为7.7；在出水温度为36~46 ℃，该装置能够有效回收废水中的热量，制热量稳定在7.5 kW左右，制热COP达到6.0以上。

Abstract

To recover waste heat from household bath wastewater and improve energy efficiency

a heat pump water heater with waste heat recovery was designed. Experimental benches were set up for experimental studies. The experiment was carried out with an inlet water temperature of 16 °C and an outlet water temperature of 36–46 °C to study the effects of changing parameters

such as the refrigerant charge amount

water output

heating capacity

and heating coefficient of performance (COP). The experimental results show that increasing the refrigerant charge benefits the heating and heating COP stability. However

the maximum heating capacity is 7.9 kW

and the heating COP is 7.7 at the minimum refrigerant charge. For the outlet water temperature of 36–46 °C

the device can effectively recover the heat in the waste water

the heating output is stable at approximately 7.5 kW

and the heating COP is above 6.0.

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