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Thermal performance analysis of a traditional passive cooling system in Dezful, Iran

机译：伊朗Dezful的传统被动冷却系统的热性能分析

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摘要

This paper presents a case study research to analyze thermal performance of a type of Iranian underground living space, called Shavadan. Shavadan is part of building typology in the city of Dezful, southeast of Iran. The focus of the study is to introduce a passive design structure to further demonstration of the significance of the thermal performance analysis of Shavadan and the design effectiveness. Shavadan design structure, the main strategy of architects and building construction practitioners in the past, plays an important role to increase the indoor thermal comfort of buildings in hot and humid climates. Shavadans were built underneath houses, schools, mosques and public spaces at depths of 6–10 m, where the thermal behavior of the earth is almost stable. But this approach is totally forgotten in today’s buildings and people do not know how to use it, even if they desire to. Based on a measuring ambient air temperatures, in this paper the thermal behavior of five settings in different parts of Dezful is studied, from June to December. Moreover, the temperature stabilities of various Shavadans were compared to evaluate the architectural effectiveness of Shavadans in terms of the complex passive systems. The results show that it is useful to consider passive strategy as an auxiliary system to reduce domestic energy use in hot semi-humid climates where there is considerable electricity demand for air conditioning in the over 40°-Celsius-heat of these zones.
机译：本文提供了一个案例研究，以分析一种称为Shavadan的伊朗地下居住空间的热性能。 Shavadan是伊朗东南部Dezful市建筑类型学的一部分。研究的重点是介绍一种无源设计结构，以进一步证明Shavadan的热性能分析的重要性和设计有效性。 Shavadan设计结构是过去建筑师和建筑施工从业人员的主要策略，在提高炎热和潮湿气候下建筑物的室内热舒适性方面起着重要作用。沙瓦丹人建在房屋，学校，清真寺和公共场所下方，深度为6至10微米，在这里地球的热行为几乎稳定。但是，这种方法在当今的建筑中完全被遗忘了，即使人们愿意，他们也不知道如何使用它。基于测量的环境空气温度，本文研究了6月至12月在Dezful不同地区的五个环境的热行为。此外，比较了各种Shavadan的温度稳定性，以评估复杂的被动系统对Shavadan的结构有效性。结果表明，将被动策略作为辅助系统来减少在炎热的半湿润气候中的家庭能源使用是有用的，因为在这些区域的40摄氏度以上的热量中，空调的电力需求相当大。

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