eprintid: 6200 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/00/62/00 datestamp: 2023-11-09 16:17:57 lastmod: 2023-11-09 16:17:57 status_changed: 2023-11-09 16:05:13 type: article metadata_visibility: show creators_name: Al-Kayiem, H.H. creators_name: Heng, Y.M. title: Experimental investigation of rooftop solar chimney for natural ventilation ispublished: pub note: cited By 6 abstract: Rooftop solar chimney functions to create natural ventilation of buildings. It is a solar driven device which induces buoyancy force through the chimney channel to updraft the air out of the building. The design parameter of the rooftop solar chimney would affect the ventilation performance. This paper presents experimental results of measurements carried out on a modified rooftop solar chimney, with double absorber surfaces, horizontal and vertical. The system performance was evaluated at various design configurations and different operational condition. Three designs were tested and compared. The first design, model 1 was the basic rooftop solar chimney which contain vertical absorber plate, room's air inlet and total air outlet. The second design, model 2 was with two inlets, from the room and from the ambient through horizontal absorber, and total air outlet. The third design, model 3 was two inlets, but with extra vertical absorber plate installed in the middle of the vertical air outlet passage. The results demonstrated that operating the chimney with ambient air inlet show the lowest performance. Model 3 which is the rooftop solar chimney with additional vertical absorber in the air outlet passage showed performance enhancement with 1.2 and 7.6 compared to model 1 and model 2, respectively. © 2006-2015 Asian Research Publishing Network (ARPN). date: 2015 publisher: Asian Research Publishing Network official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84949946415&partnerID=40&md5=88fde7a6a79fd01705ad24456d163819 full_text_status: none publication: ARPN Journal of Engineering and Applied Sciences volume: 10 number: 21 pagerange: 10249-10254 refereed: TRUE issn: 18196608 citation: Al-Kayiem, H.H. and Heng, Y.M. (2015) Experimental investigation of rooftop solar chimney for natural ventilation. ARPN Journal of Engineering and Applied Sciences, 10 (21). pp. 10249-10254. ISSN 18196608