Library Subscription: Guest
Home Archives Officers Future meetings American Society of Thermal and Fluids Engineering
First Thermal and Fluids Engineering Summer Conference

ISSN: 2379-1748
ISBN: 978-1-56700-430-4

THERMAL COMFORT AND AIR QUALITY ANALYSIS OF A VENTILATED CAVITY: A SINGLE OR MULTIPLE AIR OUTLETS

DOI: 10.1615/TFESC1.cmd.013234
pages 569-583

M. Gijon-Rivera
Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Via Atlixcáyotl 2301, Reserva Territorial Atlixcayotl, Puebla, Puebla, C.P. 72453, Mexico

Juan Serrano-Arellano
Universidad de Guanajuato, Salamanca, Guanajuato, 36885, Mexico


KEY WORDS: Ventilated room, Thermal Comfort, Air quality, Natural and forced convection

Abstract

Numerical results obtained from the analysis of the conjugate heat and mass transfer of an Air-CO2 mixture inside a ventilated cavity in turbulent flow regime are presented. Different configurations of the cavity were analyzed in order to assess the thermal behavior and the air quality inside the cavity. Ten configurations for the air were considered and the air inlet gap was located as far as possible to the heat source. The inlet air velocity is a function of the Reynolds number (5×102Re ≤ 4×104). A CO2 contaminant source between 500 ≤ CH ≤ 3000 ppm and a Richardson number interval of 0.21 ≤ Ri ≤ 1375 were considered. From the results, the location of the air gap as near as possible of heat and contaminant sources presented the better thermal performance and air distribution for a Reynolds number of Re = 2×104. For the case of the ventilated cavity with multiple air gap outlets, it was observed that the indoor air mixing capacity decreased by affecting the homogeneity index in terms of the distribution of temperatures and CO2concentrations.

Purchase $20.00 Check subscription Publication Ethics and Malpractice Recommend to my Librarian Bookmark this Page