Conference Paper

Proceedings of Building Simulation 2019: 16th Conference of IBPSA

Energy Consumption Evaluation and Optimization of Radiant and Personalized Cooling in Hot-Humid and Dry Climatic Zone

Crosby Paul, Basil T Kochupurackal, S. Rajkumar
Larsen & Toubro Construction, India

DOI: https://doi.org/10.26868/25222708.2019.211011
Abstract: Building sector continues to grow into one of the biggest consumers of energy in south Asian countries (classified majorly as very hot-humid and dry climatic zone). Estimates account space air-conditioning at nearly 50% of the energy consumption in commercial building sector, making energy a significant operational cost. Evolution of energy efficient space cooling system thus becomes a prerogative criteria (since the CDD10 is greater than 5000), paving the way for localized/personalized cooling. The research involves analysis of energy consumption patterns for a typical office space with a) Variable air volume system, b) Radiant floor cooling system c) Localized cooling by radiant panels on workstations. For the respective systems, zone cooling set point temperatures is varied based on climate responsive standard of India (representative of south Asian climate zone) and ASHRAE standard as baseline to arrive at the prospective cooling energy consumption patterns. Definitive deviance potential from the baseline present an opportunity to adopt energy efficient strategies. Greater impetus is provided to personalize cooling since from an energy consumption perspective, it reduces energy consumption by 30% over VAV system. Furthermore, tabs are kept on air distribution pattern and quality of air in the conditioned office space (by considering the standard k-Ɛ turbulence model) ensuring human comfort has greater degree of significance to energy consumption optimization.
Keywords: Radiant cooling system, Perzonalised radiant cooling, Building Energy Index, Condensation, Energy savings
Pages: 2011 - 2018
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