Paper Conference

Proceedings of Building Simulation 2009: 11th Conference of IBPSA

     

A FUNDAMENTAL APPROACH TO COOLING LOAD CALCULATIONS FOR UFADS AND STRATIFIED SPACES

Curtis O. Pedersen

DOI: https://doi.org/10.26868/25222708.2009.0704-708
Abstract: Spaces with an under floor air distribution system (UFADS) or a stratified atria involve special thermal exchange processes that require special load calculation procedures. This paper introduces an infrared transparent (IRT) surface that enables adjacent zones to exchange thermal radiation while maintaining separate air temperatures. This paper describes the development of the IRT surface and presents a comparison of a UFADS room using the IRT model and a room with conventional air flow configuration. The fundamental principles such as infrared radiation from the zone surfaces to the cool floor, and air preheating within the under floor supply plenum are calculated with a simulation approach using EnergyPlus.
Pages: 704 - 708
Paper:
bs2009_0704_708