Feasibility study on applications of solar chimney and earth tube systems for BEAM plus an LEED assessments

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Feasibility study on applications of solar chimney and earth tube systems for BEAM plus an LEED assessments

 

Author: Zhou, You Joe
Title: Feasibility study on applications of solar chimney and earth tube systems for BEAM plus an LEED assessments
Degree: M.Sc.
Year: 2012
Subject: Buildings -- Energy conservation.
Dwellings -- Environmental aspects.
Hong Kong Polytechnic University -- Dissertations
Department: Dept. of Building and Real Estate
Pages: xi, 98 p. : ill. (chiefly col.) ; 30 cm.
Language: English
InnoPac Record: http://library.polyu.edu.hk/record=b2554582
URI: http://theses.lib.polyu.edu.hk/handle/200/6884
Abstract: The Building Environmental Assessment Method (BEAM) Plus and Leadership in Energy and Environmental Design (LEED) assessments aim to improve the environmental performance of buildings across their life cycles in order to provide healthier, higher quality, more durable and efficient working and living environments for occupants. The solar chimney performance for natural ventilation is affected by both external and internal factors such as local climate and chimney dimension. An earth tube system refers to an air cooling system by using underground soil as either a heat sink in summer or a heat source in winter. Solar chimney and earth tube systems are promising green building technologies but their performance has not been evaluated by BEAM Plus and LEED. This study mainly consists of two components. In the first part, a powerful building energy simulation software - Energy Plus was used to numerically simulate the performance of solar chimney and earth tube systems for green building design. The operating conditions and dimensional parameters were varied to investigate their effects on the energy performance of the building. Then, a feasibility study on applications of solar chimney and earth tube systems was performed in order to analyze if their performances may help meet credit requirements in some Energy Use (EU) and Indoor Environment Quality (IEQ) sections of BEAM Plus and LEED assessments, respectively. Finally, the findings demonstrated both green architectural applications have great potential to help achieve credit requirements in some subsections of BEAM Plus and LEED assessments due to their energy saving capabilities on thermal comfort and ventilation.

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