Physical & Numerical Modeling Evaluations for Air-Conditioned Multipurpose Hall

Abstract

This paper focuses on both physical and numerical modeling of full- scale modeled air-conditioned multipurpose hall fully operable. To evaluate and optimize the thermal paramete rs affecting the zone comfort conditions. This is accomplished through the application of two different modeling appr oaches. First approach is to carry out experimental full-scale modeling utilizing a developed experimental technique de pending on artificial intelligence rig, which is constructed to be fully automated .wireless mobile test rig remotely controlled by pre-programmed computer and using high precision state-of-the-art measuring instruments. While the Second approach is to carry out a numerical modeling using a well developed [CFD] 3DHVAC code and computer simulation program. Physical and Numerical investigations enable the analyses and investigations of the i nfluence of Reynolds, Archimedes and Prandtl numbers for the air as well as the effects of shape, location, inlet air velocity of supply outlet on the flowing air param eters. These parameters include throw, drop, air induction, room local velocities, humidity ratio and temperatures distributions. Collected, information and data obtained from physi cal modeling compared with corresponded numerical modeling results, while gained data from both techniques were co mpared with statistical data collected from occupancies of this multipurpose hall to evaluate the validatio n of these modeling techniques. Such data and information will have a great impact on air distribution mode ling assessments and contribute for a detailed knowledge of spatial and temporal distributions of local velocity and t emperature, Thus, better understanding of fluid flow interaction in air-conditioning spaces also showed and identified the velocity fluctuations components modelling, which play a vital role in the validation of the numerical modeling . One of the main conclusions is that good agreement between both of full-scale physical modeling and numerical modeli ng were reported .While the reported comparisons concluded that qualitative agreements were shown, some discrepa ncies were also observed in the thermal parameters for comfort conditions required by different occupants.