| 摘要: |
| 本文在2016—2017年供暖季，对北京某教学楼A、B两区域的空气源热泵地板供暖系统进行了现场实验，其中A区系统安装了室温控制和水力平衡装置，系统运行方式分为出水温度为35 ℃正常供暖的阶段1和20 ℃寒假防冻保护的阶段2。通过对室内外温度、系统供回水温度及流量和耗电量长达67 d的监测，对比分析了两系统在寒冷地区的运行效果。实验结果表明：阶段1期间，A区不但能够保证室内房间温度更适宜，供热量也明显低于B区，耗电量实现24.4%的节能效果。此外，控制装置不会影响A区机组性能，A、B区的COP分别达到3.56和3.54，并且机组实际的运行性能与性能曲线接近。而阶段2期间，温控器设置未更改，A区节能率略有下降，达到16.3%，建议温控器匹配机组出水温度进行设置实现进一步的节能效果。 |
| 关键词: 空气源热泵 室温控制 地板供暖 节能率 现场实验 |
| DOI： |
| 投稿时间：2018-05-25
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| 基金项目: |
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| Field Test of Air-source Heat Pump Heating System in a Teaching Building of Beijing |
| Zhou Chaohui,Fu Xuhui,Ni Long,Yao Yang,Wang Jun,Huang Yong,Liu Dong |
| (School of Architecture, Harbin Institute of Technology;Heilongjiang Provincial Key Laboratory of Building Energy Efficiency and Utilization;Danfoss Automatic Controls Management (Shanghai) Co., Ltd.) |
| Abstract: |
| During the 2016-2017 heating season, the floor heating systems of a teaching building in Beijing was carried out for a field test. There are two air-source heat pump (ASHP) systems for two areas, i.e. area A and area B, in the building. The room temperature control and hydraulic balancing devices were equipped in the system of area A, and the system operation mode was divided into two periods: Period 1 with a water supply temperature of 35 °C for heating and Period 2 with a temperature of 20 °C for freeze protection. After 67 days of monitoring the indoor and outdoor temperatures, the temperature and flowrate of supply and return water, and power consumption, the operation effect of the two systems was compared and analyzed. The results show that during Period 1, the system of area A not only ensures a more suitable indoor temperature, but also a significantly lower heating capacity than area B, as well as a 24.4% energy saving effect on power consumption. In addition, the control devices do not affect the unit performance of area A. The COPs (coefficient of performance) of areas A and B were 3.56 and 3.54, respectively, and the actual operating performance of the unit was close to the performance curve. During Period 2, the thermostat setting remained unchanged, and the energy saving rate of area A decreased slightly to 16.3%. It is recommended that the thermostat should be set to match the water supply temperature for further energy savings. |
| Key words: air source heat pump room temperature control floor heating energy-saving field test |
