Neighborhood sustainability assessment systems support the planning of sustainable and resilient ... more Neighborhood sustainability assessment systems support the planning of sustainable and resilient cities. This research analyses, compares, and evaluates three neighborhood sustainability assessment systems (NSA) of (i) the German Sustainable Building Council for Urban Districts (DGNB–UD), (ii) the USA Leadership in energy and environmental design for Neighborhood Development (LEED–ND), and (iii) the Indian Green Rating for Integrated Habitat Assessment for Large Developments (GRIHA–LD). The theoretical background, certification types, process, and evaluation methods of the three NSAs are discussed. The qualitative and quantitative comparative analysis and evaluation methods of the NSAs included identifying and assessing ten weighted essential urban sustainability themes. Indicators under each theme were identified and compared in the NSAs. The comparison showed the importance of particular themes based on assigned weights. LEED–ND focuses on “transportation” and “site planning”, whi...
Earth-to-air heat exchangers (EAHEs) are widely used to reduce the indoor temperature and associa... more Earth-to-air heat exchangers (EAHEs) are widely used to reduce the indoor temperature and associated cooling energy demand of buildings. This study investigated the potential reduction in indoor temperatures via energy-efficient ventilation through EAHEs in an existing architectural campus building (ACB) with an energy-efficient renovated building envelope in the hot and humid climate of Karachi, Pakistan. The building information modeling (BIM) program Autodesk Revit was used to develop a virtual ACB BIM model. An EnergyPlus parametric analysis of the ACB BIM model in DesignBuilder facilitated quantification of the influences of operating parameters such as pipe installation depth and pipe diameter for EAHEs with similar total pipe lengths and air-exchange rates on the performance of the EAHEs during the cooling season. A 3 m deep and 0.1 m diameter pipe layout in open space significantly reduces indoor temperature via a specific duct layout in an exemplary ACB. The results show th...
Neighborhood sustainability assessment systems support the planning of sustainable and resilient ... more Neighborhood sustainability assessment systems support the planning of sustainable and resilient cities. This research analyses, compares, and evaluates three neighborhood sustainability assessment systems (NSA) of (i) the German Sustainable Building Council for Urban Districts (DGNB–UD), (ii) the USA Leadership in energy and environmental design for Neighborhood Development (LEED–ND), and (iii) the Indian Green Rating for Integrated Habitat Assessment for Large Developments (GRIHA–LD). The theoretical background, certification types, process, and evaluation methods of the three NSAs are discussed. The qualitative and quantitative comparative analysis and evaluation methods of the NSAs included identifying and assessing ten weighted essential urban sustainability themes. Indicators under each theme were identified and compared in the NSAs. The comparison showed the importance of particular themes based on assigned weights. LEED–ND focuses on “transportation” and “site planning”, whi...
Earth-to-air heat exchangers (EAHEs) are widely used to reduce the indoor temperature and associa... more Earth-to-air heat exchangers (EAHEs) are widely used to reduce the indoor temperature and associated cooling energy demand of buildings. This study investigated the potential reduction in indoor temperatures via energy-efficient ventilation through EAHEs in an existing architectural campus building (ACB) with an energy-efficient renovated building envelope in the hot and humid climate of Karachi, Pakistan. The building information modeling (BIM) program Autodesk Revit was used to develop a virtual ACB BIM model. An EnergyPlus parametric analysis of the ACB BIM model in DesignBuilder facilitated quantification of the influences of operating parameters such as pipe installation depth and pipe diameter for EAHEs with similar total pipe lengths and air-exchange rates on the performance of the EAHEs during the cooling season. A 3 m deep and 0.1 m diameter pipe layout in open space significantly reduces indoor temperature via a specific duct layout in an exemplary ACB. The results show th...
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