کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6727857 1428920 2018 43 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study on optimizing design of solar chimney for natural ventilation and smoke exhaustion
ترجمه فارسی عنوان
مطالعه بهینه سازی طراحی دودکش خورشیدی برای تهویه طبیعی و خستگی دود
کلمات کلیدی
دودکش خورشیدی، طراحی بهینه سازی، تهویه طبیعی، ایمنی آتش، خستگی دودی، انرژی تجدید پذیر،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
Solar chimney has been primarily utilized for natural ventilation, but its application to smoke exhaustion was rarely explored. A 1:3 reduced-scale test platform with a dimension of 1.5 m × 1.5 m × 0.9 m (height) was used to optimize solar chimney under natural ventilation and smoke exhaustion, considering four influencing factors, including height of cavity inlet from the floor (0.2-0.8 m), cavity depth (2.5-17.5 cm), solar radiation (400-1200 W/m2) and fire size (6.8-15.8 kW). Both natural ventilation and smoke exhaustion follow the same trend along the air inlet height and cavity depth, which confirms its viability on smoke exhaustion under fire condition without compromising the performance of natural ventilation. Experimental results suggested a chimney configuration of 0.5 m high air inlet and 12.5 cm cavity depth with optimized functions. External radiation shows obvious benefit on enhancing natural ventilation, while its influence on smoke exhaustion is limited. An empirical model was developed to predict the flow rate under normal and fire conditions. The outcomes of this study provide a technical guidance for the design of solar chimney under scenarios of both natural ventilation and smoke exhaustion.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy and Buildings - Volume 170, 1 July 2018, Pages 145-156
نویسندگان
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