Experimental study on reduced heat gain through green façades in a high heat load climate

Mahmoud Haggag; Ahmed Hassan; Sarah Elmasry

doi:10.1016/j.enbuild.2014.07.087

Experimental study on reduced heat gain through green façades in a high heat load climate

Mahmoud Haggag
, Ahmed Hassan
, Sarah Elmasry

Department of Architectural Engineering

Research output: Contribution to journal › Article › peer-review

108 Citations (Scopus)

Abstract

The hot and arid climate in the United Arab Emirates (UAE) yields indoor temperatures much higher than the comfort zone, which poses unique challenges in improving energy performance through building construction systems. The study examines the introduction of green façades to reduce heat gain in indoor spaces as a strategy to lower cooling demand. A vegetative living wall was installed on a school building façades and experimentally studied. The experimental results showed that during day time in the peak summer month of July, the green facade can maintain on average a temperature that is 5 °C lower than a bare wall, consequently impacting building cooling load and improving energy performance.

Original language	English
Pages (from-to)	668-674
Number of pages	7
Journal	Energy and Buildings
Volume	82
DOIs	https://doi.org/10.1016/j.enbuild.2014.07.087
Publication status	Published - Oct 2014

Keywords

Energy efficiency
Green wall
Hot climate
Sustainability
Thermal performance

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction
Mechanical Engineering
Electrical and Electronic Engineering

Access to Document

10.1016/j.enbuild.2014.07.087

Cite this

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title = "Experimental study on reduced heat gain through green fa{\c c}ades in a high heat load climate",

abstract = "The hot and arid climate in the United Arab Emirates (UAE) yields indoor temperatures much higher than the comfort zone, which poses unique challenges in improving energy performance through building construction systems. The study examines the introduction of green fa{\c c}ades to reduce heat gain in indoor spaces as a strategy to lower cooling demand. A vegetative living wall was installed on a school building fa{\c c}ades and experimentally studied. The experimental results showed that during day time in the peak summer month of July, the green facade can maintain on average a temperature that is 5 °C lower than a bare wall, consequently impacting building cooling load and improving energy performance.",

keywords = "Energy efficiency, Green wall, Hot climate, Sustainability, Thermal performance",

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note = "Funding Information: Green schools benchmarks have been developing worldwide in attempts to meet such concerns, for example Leadership in Energy and Environmental Design (LEED) for school buildings by the U.S. Green Building Council (USGBC) [8] . Energy Smart School Program by the U.S. Environmental Protection Agency (EPA) [6] , The Benchmarking Guide for School Facility Managers as part of the pilot benchmarking and best practices programme undertaken by Natural Resources Canada's (NRCan's) Office of Energy Efficiency (OEE) [9] . Also, the UK has been producing energy benchmarks and performance guides for almost 30 years, as Good Practice Guide 343, which includes typical and best practice values for primary schools [10] . In 2009, Estidama Pearl Rating System for school buildings emerged as a local effort in the UAE following the Estidama sustainability initiative [11] as part of the Abu Dhabi plan 2030. Funding Information: The authors would like to express their appreciation to the Research Affairs and Faculty of Engineering at the UAEU for their financial support. Special thanks go to the research team members of Liwa International School for their appreciated help and supports.",

year = "2014",

month = oct,

doi = "10.1016/j.enbuild.2014.07.087",

language = "English",

volume = "82",

pages = "668--674",

journal = "Energy and Buildings",

issn = "0378-7788",

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AU - Haggag, Mahmoud

AU - Hassan, Ahmed

AU - Elmasry, Sarah

N1 - Funding Information: Green schools benchmarks have been developing worldwide in attempts to meet such concerns, for example Leadership in Energy and Environmental Design (LEED) for school buildings by the U.S. Green Building Council (USGBC) [8] . Energy Smart School Program by the U.S. Environmental Protection Agency (EPA) [6] , The Benchmarking Guide for School Facility Managers as part of the pilot benchmarking and best practices programme undertaken by Natural Resources Canada's (NRCan's) Office of Energy Efficiency (OEE) [9] . Also, the UK has been producing energy benchmarks and performance guides for almost 30 years, as Good Practice Guide 343, which includes typical and best practice values for primary schools [10] . In 2009, Estidama Pearl Rating System for school buildings emerged as a local effort in the UAE following the Estidama sustainability initiative [11] as part of the Abu Dhabi plan 2030. Funding Information: The authors would like to express their appreciation to the Research Affairs and Faculty of Engineering at the UAEU for their financial support. Special thanks go to the research team members of Liwa International School for their appreciated help and supports.

PY - 2014/10

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N2 - The hot and arid climate in the United Arab Emirates (UAE) yields indoor temperatures much higher than the comfort zone, which poses unique challenges in improving energy performance through building construction systems. The study examines the introduction of green façades to reduce heat gain in indoor spaces as a strategy to lower cooling demand. A vegetative living wall was installed on a school building façades and experimentally studied. The experimental results showed that during day time in the peak summer month of July, the green facade can maintain on average a temperature that is 5 °C lower than a bare wall, consequently impacting building cooling load and improving energy performance.

AB - The hot and arid climate in the United Arab Emirates (UAE) yields indoor temperatures much higher than the comfort zone, which poses unique challenges in improving energy performance through building construction systems. The study examines the introduction of green façades to reduce heat gain in indoor spaces as a strategy to lower cooling demand. A vegetative living wall was installed on a school building façades and experimentally studied. The experimental results showed that during day time in the peak summer month of July, the green facade can maintain on average a temperature that is 5 °C lower than a bare wall, consequently impacting building cooling load and improving energy performance.

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Experimental study on reduced heat gain through green façades in a high heat load climate

Abstract

Keywords

ASJC Scopus subject areas

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