充注量对空气源热泵热水器性能的影响

袁朝阳; 陶乐仁; 虞中旸; 谷志攀

doi:10.3969/j.issn.0253-4339.2018.03.073

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充注量对空气源热泵热水器性能的影响

更新时间：2024-07-18

- 充注量对空气源热泵热水器性能的影响
- Effect of Refrigerant Charge on the Performance of Air-source Heat Pump Water Heater
- 制冷学报 2018年39卷第3期页码：73-78
- 作者机构：
  
  上海理工大学能源与动力学院
- 作者简介：
- 基金信息：
  
  上海市动力工程多相流动与传热重点实验室(1N-15-301-101)资助。
- DOI：10.3969/j.issn.0253-4339.2018.03.073
  中图分类号：
- 纸质出版：2018
- 稿件说明：
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袁朝阳, 陶乐仁, 虞中旸, 等. 充注量对空气源热泵热水器性能的影响[J]. 制冷学报, 2018,39(3):73-78.

Yuan Zhaoyang, Tao Leren, Yu Zhongyang, et al. Effect of Refrigerant Charge on the Performance of Air-source Heat Pump Water Heater[J]. Journal of Refrigeration, 2018, 39(3): 73-78.
袁朝阳, 陶乐仁, 虞中旸, 等. 充注量对空气源热泵热水器性能的影响[J]. 制冷学报, 2018,39(3):73-78. DOI： 10.3969/j.issn.0253-4339.2018.03.073.

Yuan Zhaoyang, Tao Leren, Yu Zhongyang, et al. Effect of Refrigerant Charge on the Performance of Air-source Heat Pump Water Heater[J]. Journal of Refrigeration, 2018, 39(3): 73-78. DOI： 10.3969/j.issn.0253-4339.2018.03.073.

摘要

本文通过实验比较了热泵热水器在不同制冷剂充注量下的制热性能和电子膨胀阀的调节特性，定量研究了电子膨胀阀调节方式对制热性能的影响。结果表明：阀开度16%和定过热度10 ℃工况下的最佳充注量均为1.1 kg，相应的最佳整体制热性能COPa分别为3.05和3.68；过大的充注量降低了制热性能和电子膨胀阀的调节范围；与阀开度调节相比，过热度调节可避免吸气带液的发生；在最佳充注量下，对比阀开度和过热度两种电子膨胀阀调节方式得出，后者制热性能更优。

Abstract

In this paper

the effects of a refrigerant charge on the system performance of a heat pump water heater and the regulating characteristics of the electronic expansion valve were studied experimentally. The system performance under different regulation modes of electronic expansion valve was also quantitatively analyzed. The experimental results show that 1.1 kg is the best refrigerant charge when the valve opening is 16% and the superheat temperature is 10 ℃. The corresponding maximum coefficient of performance (COPa) was 3.05 and 3.68

respectively. Excessive refrigerant charge reduces the system performance and the adjustment range of electronic expansion valve. To avoid the liquid suction of compressor

the adjustment of superheated temperature is better than that of valve opening. The system performances of the two regulating modes are compared under the optimum refrigerant charge

and the results show that the superheat regulation method is the best.

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