Occupant control patterns of low temperature air-to-air heat pumps in Chinese rural households based on field measurements
Occupant control patterns of low temperature air-to-air heat pumps in Chinese rural households based on field measurements
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DOI：
10.1016/j.enbuild.2017.08.049
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发表时间：
2017-11
影响因子：
6.7
通讯作者：
Rongjiang Ma;Chunliu Mao;M. Shan;Liao Zhang;Xudong Yang
中科院分区：
文献类型：
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作者：
Rongjiang Ma;Chunliu Mao;M. Shan;Liao Zhang;Xudong Yang
目前，中国农村的家庭供暖系统主要使用煤炭。这种低效率的供暖方式不仅导致室内舒适度差，而且还会造成室内和区域空气污染。分体式低温空气对空气热泵（AAHP）已被提议作为替代燃煤炉的清洁供暖替代方案。本研究在中国北京郊区的两个代表性农户中对 AAHP 产品进行了现场测量，重点关注三个目标：1）观察、分析和验证农户中低温 AAHP 的居住者控制模式； 2）探索农村家庭舒适的室内温度水平，并根据居民的个性化需求和空间使用展示所达到的热舒适性； 3) 了解通过考虑居住者控制模式实现的供暖节能潜力。监测2月6日至3月15日期间的室温和随时间变化的用电量。通过现场测量观察并验证了三种居住者控制模式：1）热泵每天连续运行，2）间歇运行，3）不规则运行。此外，观察到两个家庭的室内温度在10°C至23.5°C之间。通过考虑不同的居住者控制行为，供暖能耗可以显着降低。这项研究表明，使用低温AAHP可以满足个人的热舒适性要求，并且在考虑不同的居住者控制模式时具有降低供暖能耗的巨大潜力。
Currently, household heating systems in rural China primarily use coal. This low-efficiency heating method not only results in poor indoor comfort, but also contributes to indoor and regional air pollution. Split-type, low temperature air-to-air heat pumps (AAHPs) have been proposed to be a clean heating alternative to replace coal-burning stoves. This study performed field measurements of a AAHP product in two representative rural households in suburban Beijing, China, focusing on three goals: 1) to observe, analyze, and validate occupant control patterns of low temperature AAHPs in rural households; 2) to explore comfort indoor temperature levels in rural households and demonstrate the thermal comfort achieved as per the individual requirements of residents and space use; and 3) to learn the heating energy saving potentials achieved by considering occupant control patterns. Room temperatures and time-varying electricity consumption from February 6 to March 15 were monitored. Three occupant control patterns were observed and verified from the field measurements: 1) continuous daily operation of heat pumps, 2) intermittent operation, and 3) irregular operation. In addition, the observed indoor temperatures of both households ranged from 10 °C to 23.5 °C. By considering varied occupant control behaviors, the heating energy consumption reduction can be significant. This study indicated that using the low temperature AAHPs met individual thermal comfort requirements and had a great potential to reduce the heating energy consumption when considering different occupant control patterns.