Courtyard as a passive cooling design strategy in Malaysian linked houses / Mohd Riza Ismail

Sixty percent of Malaysians prefer to stay in linked houses for reasons of location, space and aesthetic. Most of these houses are installed with mechanical cooling and air circulating fans for thermal comfort instead of a more passive means. There are less demand for courtyard linked houses althoug...

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Main Author:	Ismail, Mohd Riza
Format:	Thesis
Language:	English
Published:	2016
Subjects:	Architectural drawing and design Architectural decoration
Online Access:	http://ir.uitm.edu.my/id/eprint/18936/ http://ir.uitm.edu.my/id/eprint/18936/1/TP_MOHD%20RIZA%20ISMAIL%20AP%2016_5.pdf

id	uitm-18936
recordtype	eprints
spelling	uitm-189362018-01-29T01:49:08Z http://ir.uitm.edu.my/id/eprint/18936/ Courtyard as a passive cooling design strategy in Malaysian linked houses / Mohd Riza Ismail Ismail, Mohd Riza Architectural drawing and design Architectural decoration Sixty percent of Malaysians prefer to stay in linked houses for reasons of location, space and aesthetic. Most of these houses are installed with mechanical cooling and air circulating fans for thermal comfort instead of a more passive means. There are less demand for courtyard linked houses although the courtyard could hypothetically to be the answer for a passive cooling design strategy. Hence, the aim of this research is to explore the possibilities of enhancing indoor thermal comfort condition by determining the effectiveness of courtyard as a passive cooling building element. The objectives of this thesis are: i) to study the types of courtyard configuration in existing linked houses; ii) to investigate the environmental condition of the courtyard and its effect to the indoor thermal comfort; iii) to explore the importance of courtyard configuration in providing good natural ventilation and iv) to determine the best courtyard configuration that create best indoor thermal comfort of a linked house. This study investigated two similar urban linked houses (with and without internal courtyard) in terms of size and specifications in Shah Alam and Klang. Data based on two days of measurements and observations at both houses for outdoor, indoor temperature, relative humidity and air velocity revealed that the indoor thermal conditions for both houses exceeded the thermal comfort zone recommended by Givoni's Bio-Climatic chart and ASHRAE. However, through comparative analysis, the house with internal centre courtyard produced better results and maintained a more comfortable indoor condition due to its horizontal and vertical natural cross ventilation which occurred during the day time and night time. Further predictive investigations on the courtyard linked house, based on CFD simulations using Flovent 7.2 and AnSys were conducted. Three variations of design models were studied namely enlarged courtyard area, increased courtyard walls height and enlarged openings at the front and rear. Diurnal simulations concluded that the increased of courtyard surrounding wall height and enlarged openings at front and rear options were the most effective, whereas the enlarged courtyard area (footprint) type were less effective, regardless of which operation mode were applied. Hence, linked houses with courtyards are proven to be beneficial to the occupants by providing passive cooling through natural ventilation. 2016 Thesis NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/18936/1/TP_MOHD%20RIZA%20ISMAIL%20AP%2016_5.pdf Ismail, Mohd Riza (2016) Courtyard as a passive cooling design strategy in Malaysian linked houses / Mohd Riza Ismail. PhD thesis, Universiti Teknologi MARA.
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Teknologi MARA
building	UiTM Institutional Repository
collection	Online Access
language	English
topic	Architectural drawing and design Architectural decoration
spellingShingle	Architectural drawing and design Architectural decoration Ismail, Mohd Riza Courtyard as a passive cooling design strategy in Malaysian linked houses / Mohd Riza Ismail
description	Sixty percent of Malaysians prefer to stay in linked houses for reasons of location, space and aesthetic. Most of these houses are installed with mechanical cooling and air circulating fans for thermal comfort instead of a more passive means. There are less demand for courtyard linked houses although the courtyard could hypothetically to be the answer for a passive cooling design strategy. Hence, the aim of this research is to explore the possibilities of enhancing indoor thermal comfort condition by determining the effectiveness of courtyard as a passive cooling building element. The objectives of this thesis are: i) to study the types of courtyard configuration in existing linked houses; ii) to investigate the environmental condition of the courtyard and its effect to the indoor thermal comfort; iii) to explore the importance of courtyard configuration in providing good natural ventilation and iv) to determine the best courtyard configuration that create best indoor thermal comfort of a linked house. This study investigated two similar urban linked houses (with and without internal courtyard) in terms of size and specifications in Shah Alam and Klang. Data based on two days of measurements and observations at both houses for outdoor, indoor temperature, relative humidity and air velocity revealed that the indoor thermal conditions for both houses exceeded the thermal comfort zone recommended by Givoni's Bio-Climatic chart and ASHRAE. However, through comparative analysis, the house with internal centre courtyard produced better results and maintained a more comfortable indoor condition due to its horizontal and vertical natural cross ventilation which occurred during the day time and night time. Further predictive investigations on the courtyard linked house, based on CFD simulations using Flovent 7.2 and AnSys were conducted. Three variations of design models were studied namely enlarged courtyard area, increased courtyard walls height and enlarged openings at the front and rear. Diurnal simulations concluded that the increased of courtyard surrounding wall height and enlarged openings at front and rear options were the most effective, whereas the enlarged courtyard area (footprint) type were less effective, regardless of which operation mode were applied. Hence, linked houses with courtyards are proven to be beneficial to the occupants by providing passive cooling through natural ventilation.
format	Thesis
author	Ismail, Mohd Riza
author_facet	Ismail, Mohd Riza
author_sort	Ismail, Mohd Riza
title	Courtyard as a passive cooling design strategy in Malaysian linked houses / Mohd Riza Ismail
title_short	Courtyard as a passive cooling design strategy in Malaysian linked houses / Mohd Riza Ismail
title_full	Courtyard as a passive cooling design strategy in Malaysian linked houses / Mohd Riza Ismail
title_fullStr	Courtyard as a passive cooling design strategy in Malaysian linked houses / Mohd Riza Ismail
title_full_unstemmed	Courtyard as a passive cooling design strategy in Malaysian linked houses / Mohd Riza Ismail
title_sort	courtyard as a passive cooling design strategy in malaysian linked houses / mohd riza ismail
publishDate	2016
url	http://ir.uitm.edu.my/id/eprint/18936/ http://ir.uitm.edu.my/id/eprint/18936/1/TP_MOHD%20RIZA%20ISMAIL%20AP%2016_5.pdf
first_indexed	2023-09-18T23:01:31Z
last_indexed	2023-09-18T23:01:31Z
_version_	1777418204766797824

Courtyard as a passive cooling design strategy in Malaysian linked houses / Mohd Riza Ismail

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