文章基本信息

标题：Design guideline for application of earth-to-air heat exchanger coupled with solar chimney as a natural heating system
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作者：Haghighi, A. P. ; Maerefat, M.
期刊名称：Intl Jnl of Low-Carbon Technologies
印刷版ISSN：1748-1317
电子版ISSN：1748-1325
出版年度：2015
卷号：10
期号：3
页码：294-304
DOI：10.1093/ijlct/ctu006
出版社：Oxford University Press
摘要：In the present paper, design of solar chimney (SC) and earth-to-air heat exchanger (EAHE) to meet the thermal need of flat buildings are studied regarding adaptive thermal comfort criteria. Investigation on the effects of geometric features shows that the design of SC with the air gap and outlet sizes of 0.2 m and also EAHE with the diameter and length of 0.5 and 25.0 m reveals better performance. Thermal comfort analysis shows that the SC is capable to power the underground heating system during few hours of the sunny days even at the ambient temperature as low as 0°C and the heating demand of 1000 W without needing the auxiliary devices. In addition, the required numbers of SCs and the underground air channels are strongly influenced by environmental outdoor conditions and heating demand of building and are approximately calculated by: room volume/50 and 2 × ( room volume/50 ) + 1, respectively.