| 摘要: |
| 利用土壤源VRF空调系统实验台，对冬季制热工况进行实验研究，分析单位面积小时功耗、机组性能系数、系统性能系数随部分负荷率（PLR）的变化规律。研究表明：冬季制热工况下部分负荷率主要集中在40%~70%范围内，单位面积小时功耗随部分负荷率呈下凹曲线分布，机组性能系数和系统性能系数随部分负荷率变化存在呈上凸趋势的性能域。 |
| 关键词: 土壤源VRF空调系统 部分负荷率 冬季运行 实验研究 |
| DOI： |
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| 基金项目: |
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| Experiments on Part Load Performance of Ground Source Variable Refrigerant Flow System in Winter |
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Yan Lijun, Zhang Xu, Zhao Deyin, Wu Jiachen
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| (College of Mechanical Engineering, Tongji University) |
| Abstract: |
| Based on the measured data of the ground source variable refrigerant flow system (GSVRFS) in the heating season, this research analyzes the variation of hourly system power consumption per square meter, coefficient of performance (COP) of unit and COP of system along with the change of part load ratio (PLR). The results show that the PLR is distributed mainly from 40% to 70%. Hourly power consumption per square meter varies with PLR in concave form. The COPs of the unit and system vs. the system part load ratio are within a convex performance domain. |
| Key words: ground source variable refrigerant flow system part load ratio operation in winter experiment research |
