Paper Conference

Proceedings of SimBuild Conference 2006: 2nd conference of IBPSA-USA


Low Energy Cooling Technologies for Sub-Tropical/Warm Humid Climate Building Systems

Ashfaque Ahmed Chowdhury, Mohammad Golam Rasul, Mohammad Masud Kamal Khan
School of Advanced Technologies and Processes, Faculty of Sciences, Engineering and Health, Central Queensland University, Rockhampton, Queensland 4701, Australia

Abstract: The paper aims to investigate the technologies of low energy cooling that are compatible with existing buildings in order to reduce the energy consumption and peak demand associated with the cooling of institutional or commercial buildings in subtropical Queensland, Australia. The performance and effectiveness of a standard direct-expansion airconditioning system are compared with those of a chilled ceiling radiant cooling system and a mixed-mode system that combines natural and mechanical ventilation within the building systems in a subtropical climate. The simulation results suggest that the chilled ceiling technique is preferable compared to the mixedmode technique for efficient operation over the whole year and energy savings of 13-14% are achievable. An example of a building plan and materials is used to run the base case. DesignBuilder, an EnergyPlus based dynamic thermal simulation engine, is the simulation and visualization tool of the study.
Pages: 191 - 199