The study on the low-loaded cooling of well insulated houses in the warm-temperature regions

暖温区保温良好房屋低负荷制冷研究

• 批准号: 15560514
• 负责人: SUZUKI Kenzo
• 金额: $ 2.05万
• 依托单位: Hokkaido Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15560514/
• 关键词: air conditioner; cooling; well insulated house; energy conservation; cooling room temperature; Coefficient of performance; inverter control; unsteady analysis program; キーワード; シミュレーション; 通気層; 高断熱; 排熱

I have surveyed air conditioner operating conditions and indoor environment of houses in relation to their thermal insulation performance in Kansai (Kyoto, Kobe city), Tohoku (Aizu-wakamatsu city) and Hokkaido (Kitami city). In Aizu-wakamatsu and Kitami, air conditioners were used since morning when ambient temperature exceeded 25℃, and the average room temperature was 26〜27゜C. In Kyoto and Kobe, however, the utilization of air conditioners in the daytime was little, and they were used only during the period between the evening and pre-sleep time, and the average room temperature was 28〜30℃. The difference in such utilization by the thermal insulation performance was small because people in Kansai lived in their houses with their windows opened. They had the impression that high-insulated houses kept in the heat due to their insufficient ventilation performance even if a maximum room temperature was low.. In Kyoto and Kobe, habituation for a heat and apprehensions on the health concern … More ing air conditioner use, discomfort of top and bottom temperature gradient have reduced the utilization of air conditioners.In Aizu-wakamatsu, air conditioners frequently repeated the on/off operation when each air conditioner in all rooms was utilized at the same time since such use resulted in the excessive capacity of electricity and exceeded the range of the inverter control.I confirmed such air conditioner on/off operation leaded to the extreme drop in efficiency by the experiment. However, the on/off operation did not occur in Kitami since it has been air-cooled by 1 air conditioner in all rooms. From the viewpoint of its efficiency, it is desirable that a high thermal insulation house install an air conditioner in second floor hall etc. and it continuously keep the room temperature.I developed "Room temperature and load fluctuation analysis program" in which the accuracy of the calculation of the external wall with vent layers was improved. It was clarified that adopting a higher thermal insulation performance than that defined in the energy saving standard to houses in warmer areas also resulted in period cooling load decrease. Less

我对关西（京都、神户市）、东北（会津若松市）和北海道（北见市）的房屋的空调运行条件和室内环境与隔热性能进行了调查。从早上起环境温度超过25℃就开始使用空调，京都和神户的平均室温为26〜27℃。白天空调使用量较少，仅在晚上至睡眠前时段使用，平均室温为28-30℃，保温性能差异较大。关西人住在窗户开着的房子里，他们的印象是，即使最高室温较低，高隔热的房子也会因通风性能不足而保持高温。在京都和神户，习惯了。热量和由于对空调使用健康问题的担忧，上下温度梯度的不适，降低了空调的使用率。在会津若松，当所有房间的每台空调都使用时，空调频繁地重复开/关操作同时，由于这样的使用导致了电量过剩，超出了逆变器的控制范围。我通过实验确认了这样的空调开/关操作会导致效率极度下降，但是开/关却是这样的。北见市没有发生运转，因为所有房间都由一台空调进行空气冷却，从其效率的角度来看，高隔热房屋最好在二楼大厅等处安装空调并连续运行。我开发了“室温和荷载波动分析程序”，提高了带有通风层的外墙的计算精度，明确了采用比节能中定义的更高的隔热性能。温暖地区房屋的标准也导致期间冷负荷减少。