Study of hybrid natural ventilation using a combination of turbine ventilator and solar chimney

Solar chimney is a common passive natural ventilation system. There is a small potential value when solar chimney is used independently. Therefore, solar chimneys are always applied in the form of integrating configurations. The aim of this study is to investigate the ventilation performance by inte...

Full description

Saved in:

Bibliographic Details
Main Author:	Ling, Leh Sung
Format:	Thesis
Language:	English English
Published:	2020
Subjects:	TJ241-254.7 Machine construction (General)
Online Access:	https://eprints.ums.edu.my/id/eprint/42062/1/24%20PAGES.pdf https://eprints.ums.edu.my/id/eprint/42062/2/FULLTEXT.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-ums-ep.42062
record_format	uketd_dc
spelling	my-ums-ep.420622024-12-16T02:46:16Z Study of hybrid natural ventilation using a combination of turbine ventilator and solar chimney 2020 Ling, Leh Sung TJ241-254.7 Machine construction (General) Solar chimney is a common passive natural ventilation system. There is a small potential value when solar chimney is used independently. Therefore, solar chimneys are always applied in the form of integrating configurations. The aim of this study is to investigate the ventilation performance by integrating solar chimney and turbine ventilator. A small size solar chimney is proposed that ease its integration with turbine ventilator. The performance of solar chimney is studied experimentally by heating the solar chimney at constant heat flux. It is found that higher inclination angle and larger air gap depth is performing better. However, the performance start deteriorating after optimum value of inclination angle and air gap depth. Although no specific relationship can be found for inlet and outlet aperture area, but the inlet aperture area is recommended to be at least double the size of outlet aperture area. The integrated system is studied experimentally by heating the solar chimney under constant heat flux and/or by rotating the turbine ventilator at constant rotational speed. The results demonstrate that the ventilation performance of the solar chimney with rotating turbine ventilator is performing the best. The proposed solar chimney also shows the capability to encounter the flow reversal effect as the absence of wire mesh outperform the presence of wire mesh. All those results will be useful in the future solar chimney development either for designation or prediction to achieve the ventilation requirement. 2020 Thesis https://eprints.ums.edu.my/id/eprint/42062/ https://eprints.ums.edu.my/id/eprint/42062/1/24%20PAGES.pdf text en public https://eprints.ums.edu.my/id/eprint/42062/2/FULLTEXT.pdf text en validuser masters Universiti Malaysia Sabah Fakulti Kejuruteraan
institution	Universiti Malaysia Sabah
collection	UMS Institutional Repository
language	English English
topic	TJ241-254.7 Machine construction (General)
spellingShingle	TJ241-254.7 Machine construction (General) Ling, Leh Sung Study of hybrid natural ventilation using a combination of turbine ventilator and solar chimney
description	Solar chimney is a common passive natural ventilation system. There is a small potential value when solar chimney is used independently. Therefore, solar chimneys are always applied in the form of integrating configurations. The aim of this study is to investigate the ventilation performance by integrating solar chimney and turbine ventilator. A small size solar chimney is proposed that ease its integration with turbine ventilator. The performance of solar chimney is studied experimentally by heating the solar chimney at constant heat flux. It is found that higher inclination angle and larger air gap depth is performing better. However, the performance start deteriorating after optimum value of inclination angle and air gap depth. Although no specific relationship can be found for inlet and outlet aperture area, but the inlet aperture area is recommended to be at least double the size of outlet aperture area. The integrated system is studied experimentally by heating the solar chimney under constant heat flux and/or by rotating the turbine ventilator at constant rotational speed. The results demonstrate that the ventilation performance of the solar chimney with rotating turbine ventilator is performing the best. The proposed solar chimney also shows the capability to encounter the flow reversal effect as the absence of wire mesh outperform the presence of wire mesh. All those results will be useful in the future solar chimney development either for designation or prediction to achieve the ventilation requirement.
format	Thesis
qualification_level	Master's degree
author	Ling, Leh Sung
author_facet	Ling, Leh Sung
author_sort	Ling, Leh Sung
title	Study of hybrid natural ventilation using a combination of turbine ventilator and solar chimney
title_short	Study of hybrid natural ventilation using a combination of turbine ventilator and solar chimney
title_full	Study of hybrid natural ventilation using a combination of turbine ventilator and solar chimney
title_fullStr	Study of hybrid natural ventilation using a combination of turbine ventilator and solar chimney
title_full_unstemmed	Study of hybrid natural ventilation using a combination of turbine ventilator and solar chimney
title_sort	study of hybrid natural ventilation using a combination of turbine ventilator and solar chimney
granting_institution	Universiti Malaysia Sabah
granting_department	Fakulti Kejuruteraan
publishDate	2020
url	https://eprints.ums.edu.my/id/eprint/42062/1/24%20PAGES.pdf https://eprints.ums.edu.my/id/eprint/42062/2/FULLTEXT.pdf
_version_	1818611444038500352

Study of hybrid natural ventilation using a combination of turbine ventilator and solar chimney

Similar Items