eprintid: 5520
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/55/20
datestamp: 2023-11-09 16:17:15
lastmod: 2023-11-09 16:17:15
status_changed: 2023-11-09 16:01:57
type: article
metadata_visibility: show
creators_name: Al-Kayiem, H.H.
creators_name: K.v., S.
creators_name: Gilani, S.I.U.-H.
title: Mathematical analysis of the influence of the chimney height and collector area on the performance of a roof top solar chimney
ispublished: pub
keywords: Dynamic behaviours; Iteration method; Mathematical analysis; Renewable energies; Solar intensities; Solar updraft; Space-ventilation; Thermal solar system, Iterative methods; Mathematical models; MATLAB; Roofs, Solar chimneys
note: cited By 70
abstract: Determination of the roof top solar chimney behaviour during the day time is essential for the proper designing and sizing. This paper presents a mathematical model and analysis of an inclined type roof top solar chimney. The thermal energy and fluid flow processes were simulated mathematically based on the energy and mass balances. The model was converted to a MATLAB computer program and solved by iteration method. The analysis was carried out at various collector areas (15, 150, and 600 m2) and various chimney heights (5, 10, and 15 m). The model was validated by comparing the results with the experimental measurements. The developed mathematical model was able to predict the dynamic behaviour of the system. The results demonstrated that the performance of the system is highly influenced by the solar intensity. The system becomes functional for space ventilation when the solar intensity is higher than 400 W/m2 with a 15 m2 collector area and 5 m chimney height, under Malaysia and similar weather conditions. As the wind speed increases from 1.5 to 6 m/s, it contributes to reduce the system performance by 25 at solar intensity of 900 W/m2. © 2013 Elsevier B.V.
date: 2014
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84886691169&doi=10.1016%2fj.enbuild.2013.09.021&partnerID=40&md5=2a69e0582712a23cce9714e04f6c6ff2
id_number: 10.1016/j.enbuild.2013.09.021
full_text_status: none
publication: Energy and Buildings
volume: 68
number: PARTA
pagerange: 305-311
refereed: TRUE
issn: 03787788
citation:   Al-Kayiem, H.H. and K.v., S. and Gilani, S.I.U.-H.  (2014) Mathematical analysis of the influence of the chimney height and collector area on the performance of a roof top solar chimney.  Energy and Buildings, 68 (PARTA).  pp. 305-311.  ISSN 03787788