Parametric Performance Analysis of the Cooling Potential of Earth-to-Air Heat Exchangers in Hot and Humid Climates

Earth-to-air heat exchangers (EAHEs) are widely used to reduce the indoor temperature and associated cooling energy demand of buildings. This study investigated potential reduction in temperatures via energy-efficient ventilation through EAHEs an existing architectural campus building (ACB) with renovated envelope hot humid climate Karachi, Pakistan. The information modeling (BIM) program Autodesk Revit was develop a virtual ACB BIM model. An EnergyPlus parametric analysis model DesignBuilder facilitated quantification influences operating parameters such as pipe installation depth diameter for similar total lengths air-exchange rates on performance during season. A 3 m deep 0.1 layout open space significantly reduces specific duct exemplary ACB. results show that above is unsuitable because convective transfer due increase pipe’s surface area decrease pressure pipe. findings this can be improve thermal comfort buildings climates comparable properties.