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Reducing cooling load and lifecycle cost for residential buildings: a case of Lahore, Pakistan

Purpose: Buildings consume a large amount of energy for space cooling during the summer season, creating an overall sustainability concern. The upfront cost associated with sustainability repels the decision-makers to often end up adopting solutions that have huge operations and maintenance costs. T...

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Main Authors: Khalid, H., Thaheem, M.J., Malik, M.S.A., Musarat, M.A., Alaloul, W.S.
Format: Article
Published: Springer Science and Business Media Deutschland GmbH 2021
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85119499245&doi=10.1007%2fs11367-021-02000-1&partnerID=40&md5=ee2b5b57a5f63bc475495fcef7964c2b
http://eprints.utp.edu.my/29635/
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spelling my.utp.eprints.296352022-03-29T05:22:36Z Reducing cooling load and lifecycle cost for residential buildings: a case of Lahore, Pakistan Khalid, H. Thaheem, M.J. Malik, M.S.A. Musarat, M.A. Alaloul, W.S. Purpose: Buildings consume a large amount of energy for space cooling during the summer season, creating an overall sustainability concern. The upfront cost associated with sustainability repels the decision-makers to often end up adopting solutions that have huge operations and maintenance costs. Therefore, the purpose of this study is to assess the lifecycle cost (LCC) implications of optimum configurations of active and passive strategies for reducing the cooling load in buildings. Methods: Several green building active and passive strategies and technologies were assimilated and their thermal performance in a hot semi-arid climate of Lahore in Pakistan using DesignBuilder V6.1 was simulated to obtain the most optimum cooling load configuration. Furthermore, LCC is estimated, and overall efficiency is evaluated to identify the most effective space cooling configuration. Results and discussion: The results suggest that a configuration of EPS for external wall insulation, vertical louvers for external shading, 6 mm blue HRG (low-E soft coated) + 12 mm air space + 6 mm clear glass for windows, polystyrene as roof insulation, cross ventilation through windows, and LED lighting system has the best performance. This is the first-of-its-kind study in the hot semi-arid climate of South Asia with the city of Lahore in Pakistan as the test case and can be generalized for places with similar conditions. The findings will help the decision-makers in selecting the most load-efficient and cost-effective green building technologies to help improve overall sustainability. Conclusion: The implementation of the proposed strategies not only aids in providing user-friendly and effective decision-making but also promotes the adoption of sustainability in buildings by leveraging the existing green building technologies to enhance the environmental and economic aspects. This is a promising approach to facilitate the spread of green building construction in developing countries. It is recommended to utilize the strategies grouped in Scenario 8 to achieve a reduced cooling load and LCC of a residential building throughout its lifecycle. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature. Springer Science and Business Media Deutschland GmbH 2021 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85119499245&doi=10.1007%2fs11367-021-02000-1&partnerID=40&md5=ee2b5b57a5f63bc475495fcef7964c2b Khalid, H. and Thaheem, M.J. and Malik, M.S.A. and Musarat, M.A. and Alaloul, W.S. (2021) Reducing cooling load and lifecycle cost for residential buildings: a case of Lahore, Pakistan. International Journal of Life Cycle Assessment, 26 (12). pp. 2355-2374. http://eprints.utp.edu.my/29635/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
description Purpose: Buildings consume a large amount of energy for space cooling during the summer season, creating an overall sustainability concern. The upfront cost associated with sustainability repels the decision-makers to often end up adopting solutions that have huge operations and maintenance costs. Therefore, the purpose of this study is to assess the lifecycle cost (LCC) implications of optimum configurations of active and passive strategies for reducing the cooling load in buildings. Methods: Several green building active and passive strategies and technologies were assimilated and their thermal performance in a hot semi-arid climate of Lahore in Pakistan using DesignBuilder V6.1 was simulated to obtain the most optimum cooling load configuration. Furthermore, LCC is estimated, and overall efficiency is evaluated to identify the most effective space cooling configuration. Results and discussion: The results suggest that a configuration of EPS for external wall insulation, vertical louvers for external shading, 6 mm blue HRG (low-E soft coated) + 12 mm air space + 6 mm clear glass for windows, polystyrene as roof insulation, cross ventilation through windows, and LED lighting system has the best performance. This is the first-of-its-kind study in the hot semi-arid climate of South Asia with the city of Lahore in Pakistan as the test case and can be generalized for places with similar conditions. The findings will help the decision-makers in selecting the most load-efficient and cost-effective green building technologies to help improve overall sustainability. Conclusion: The implementation of the proposed strategies not only aids in providing user-friendly and effective decision-making but also promotes the adoption of sustainability in buildings by leveraging the existing green building technologies to enhance the environmental and economic aspects. This is a promising approach to facilitate the spread of green building construction in developing countries. It is recommended to utilize the strategies grouped in Scenario 8 to achieve a reduced cooling load and LCC of a residential building throughout its lifecycle. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.
format Article
author Khalid, H.
Thaheem, M.J.
Malik, M.S.A.
Musarat, M.A.
Alaloul, W.S.
spellingShingle Khalid, H.
Thaheem, M.J.
Malik, M.S.A.
Musarat, M.A.
Alaloul, W.S.
Reducing cooling load and lifecycle cost for residential buildings: a case of Lahore, Pakistan
author_facet Khalid, H.
Thaheem, M.J.
Malik, M.S.A.
Musarat, M.A.
Alaloul, W.S.
author_sort Khalid, H.
title Reducing cooling load and lifecycle cost for residential buildings: a case of Lahore, Pakistan
title_short Reducing cooling load and lifecycle cost for residential buildings: a case of Lahore, Pakistan
title_full Reducing cooling load and lifecycle cost for residential buildings: a case of Lahore, Pakistan
title_fullStr Reducing cooling load and lifecycle cost for residential buildings: a case of Lahore, Pakistan
title_full_unstemmed Reducing cooling load and lifecycle cost for residential buildings: a case of Lahore, Pakistan
title_sort reducing cooling load and lifecycle cost for residential buildings: a case of lahore, pakistan
publisher Springer Science and Business Media Deutschland GmbH
publishDate 2021
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85119499245&doi=10.1007%2fs11367-021-02000-1&partnerID=40&md5=ee2b5b57a5f63bc475495fcef7964c2b
http://eprints.utp.edu.my/29635/
_version_ 1738656993824997376
score 13.211869

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