Paper Conference

Proceedings of Building Simulation 2021: 17th Conference of IBPSA


Predicted energy savings by adopting novel radiant cooling systems in combination with natural ventilation in the tropics

Denon Sheppard 1, Adam Rysanek 1, Eric Teitelbaum 2, Kian Wee Chen 2, Dorit Aviv 3, Kipp Bradford 2, Forrest Meggers 2
1 School of Architecture and Landscape Architecture, University of British Columbia, Vancouver, Canada
2 Andlinger Center for Energy and Environment, Princeton University, Princeton USA
3 Weitzman School of Design, University of Pennsylvania, Philadelphia, USA

Abstract: Membrane-assisted radiant panels have demonstrated the ability to provide sub dew-point cooling in humid climates without condensing air moisture. However, there has previously been no method of simulating the energy usage of a building that utilizes this method of cooling. This paper proposes a framework that allows a thermophysics model developed for membraneassisted panels to operate within energy simulation software. Methods are developed that allows the thermophysics model to communicate with a TRNSYS environment. The framework is then used to predict the potential energy savings that could be obtained by implementing this technology in Singapore. It was found that this climate can benefit from the adoption of a cooling system that combines membrane-assisted radiant cooling with natural ventilation. The framework developed in this study will bring membraneassisted radiant cooling closer to widespread implementation. Key Innovation • Proposes a framework that allows for the energy simulation of a building that utilizes membraneassisted radiant cooling panels • Demonstrates the energy saving potential of combining membrane-assisted radiant cooling with natural ventilation in hot and humid climates Practical Implications This paper completes the bridge between the experimental results of the panel's performance and building simulation by creating a TRNSYS framework that allows for the simulation of a building energy system that utilizes membrane-assisted radiant panel technology. The framework developed in this study will bring this technology closer to widespread implementation, as modelers will be able to optimize the design of a radiant system before its construction in a building.
Keywords: Radiant Cooling, Mixed mode ventilation, Tropical Climate, Energy Efficiency, Radiative heat transfer
Pages: 621 - 628