Research Article Open Access

USE OF COMPUTATIONAL FLUID DYNAMIC TO PREDICT AIRFLOW AND TEMPERATURE DISTRIBUTION IN A RESIDENTIAL BUILDING WITH AN UNDER FLOOR AIR DISTRIBUTION SYSTEM

Abd Alnasser Almate A. Ali1, Ahmed Cherif Megri2, Paul A. Dellenback1 and Yao Yu2
  • 1 University of Wyoming, USA
  • 2 North Carolina A and T State University, USA
American Journal of Engineering and Applied Sciences
Volume 7 No. 1, 2014, 171-184

DOI: https://doi.org/10.3844/ajeassp.2014.171.184

Submitted On: 1 February 2014 Published On: 11 April 2014

How to Cite: Ali, A. A. A. A., Megri, A. C., Dellenback, P. A. & Yu, Y. (2014). USE OF COMPUTATIONAL FLUID DYNAMIC TO PREDICT AIRFLOW AND TEMPERATURE DISTRIBUTION IN A RESIDENTIAL BUILDING WITH AN UNDER FLOOR AIR DISTRIBUTION SYSTEM. American Journal of Engineering and Applied Sciences, 7(1), 171-184. https://doi.org/10.3844/ajeassp.2014.171.184

Abstract

Our objective is to demonstrate the use of Computational Fluid Dynamic (CFD) in building applications. In particular, CFD has been used for temperature and airflow predictions of building spaces conditioned using Under Floor Air Distribution (UFAD) System. The space used is an instrumented laboratory room (old daycare center) located at the University of Wyoming. The use of the CFD simulation results provides insightful analyses of the UFAD design and diffuser locations. The k-ε turbulent model was employed to simulate the environment above an Under-Floor Air Distribution (UFAD) system, where the air is supplied using different configurations of several diffuser locations. Mesh generation was conducted using a pre-processor program, called GAMBIT. The CFD results were obtained using the program FLUENT and show flow and thermal patterns, using temperature and heat flux boundary conditions obtained experimentally. These boundary conditions have been used to predict the nature of convection heat transfer through studying velocity and temperature patterns. A realistic three dimensional model of the UFAD system is used for the simulation.

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Keywords

  • Under Floor Air Distribution System
  • CFD
  • Experimental
  • Simulation
  • Residential Building