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QUANTITATIVE STUDY ON PASSIVE COOLING METHODS IN HOT AND HUMID AREAS

湿热地区被动冷却方法的定量研究

基本信息

批准号：
05650559
负责人：
ISHIHARA Osamu
金额：
$ 1.41万
依托单位：
Kumamoto University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1993
资助国家：
日本
起止时间：
1993 至 1994
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05650559/
关键词：
Passive Coolig Methods Cooling tubes Exterior blinds Solar shading Energy saving Field experiments Simulation Soil-lawn cover roof パッシブクーリング屋上植栽ブラインドクールチユーブ

项目摘要

In this study, the effects of various passiv e cooling motheds, such as cooling tubes, exterior blinds and soil-lawn covered roofs were examined.In Chapter 2, the effcets of cooling tubes on dwellings wereinvestigted. Two cooling tubes were installed in a test house in Kumamoto City. The effects of cooling tubes were made clear by comparing the room temperatures when only one tube was used. A computer program simulating the thermal performance was developed and the preciseness of the program was verified by comparing the calulated results with measured ones. Using this program, parametric analyzes on influencs of depth, ventilation rate ect.were conducted.In Chapter 3, energy savings by exterior blinds were discussed. An apparatus measuring the shading coefficient of shades were made. With this equipment, two kinds of exterior blinds and one kind of interior blind were measured. The results from these tests were input into a computer program (HASP/8001) for air-conditioning loads. By comparing the cooling loads of office buildings with exterior and interior blinds, the energy saving of exterior blinds were made clear.In Chapter 4, energy savings by soil and lawn cover roofs were investigated. Firstly. four kinds of roof models were manu-fectured and thermal performance of these roof models was measured. A computer program simulating the thermal performance of lawn and soil was developed and its preciseness was verified by measured results. By combining this program and another one called PSSP,cooling and heating loads of the top story of a building with common concret roofs and lawn-soil covered roof were analyzed. The energy savings of lawn-soil covered roof can be expected in hot areas like Kyushu and Okinawa.

在这项研究中，研究了各种被动冷却方法的效果，如冷却管，外部百叶窗和土壤草坪覆盖屋顶。在第二章中，研究了冷却管对住宅的影响。熊本市的一个试验室安装了两根冷却管。通过比较只使用一根冷却管时的室温，可以清楚地看出冷却管的作用。编制了模拟热工性能的计算机程序，并将计算结果与实测结果进行了比较，验证了程序的准确性。利用该程序对深度、通风量等因素的影响进行了参数化分析。进行了。第三章讨论了外百叶窗的节能问题。制作了一种测量遮光系数的装置。利用该仪器对两种室外百叶窗和一种室内百叶窗进行了测量。这些试验的结果输入到空调负荷的计算机程序（HASP/8001）中。通过对内外百叶窗办公建筑的冷负荷进行比较，明确了外百叶窗的节能效果。第四章对土壤和草坪覆盖屋顶节能进行了研究。首先。制作了四种屋面模型，并对其热工性能进行了测试。编制了模拟草坪和土壤热性能的计算机程序，并通过实测结果验证了程序的准确性。通过将该方案与另一个名为PSSP的方案相结合，分析了具有普通混凝土屋顶和草坪土覆盖屋顶的建筑物顶层的冷热负荷。在九州和冲绳等炎热地区，草坪覆盖的屋顶可以节省能源。