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ARTICLE
Numerical Study of the Distribution of Temperatures and Relative Humidity in a Ventilated Room Located in Warm Weather
J. Serrano-Arellano1, J. M. Belman-Flores2,*, I. Hernández-Pérez3, K. M. Aguilar-Castro3, E. V. Macías-Melo3, F. Elizalde-Blancas2, J. M. Riesco-Ávila2, F. J. García-Rodríguez4
1 Instituto Tecnológico Superior de Huichapan, El Saucillo, Huichapan, 42411, México.
2 Universidad de Guanajuato, Palo Blanco, Salamanca, 36885, México.
3 Universidad Juárez Autónoma de Tabasco, Cunduacán, Tabasco, 86690, México.
4 Instituto Tecnológico de Celaya, Col. Fovissste, Celaya, 38010, México.
* Corresponding Author: J. M. Belman-Flores. Email: .
Computer Modeling in Engineering & Sciences 2020, 123(2), 571-602. https://doi.org/10.32604/cmes.2020.08677
Received 25 September 2019; Accepted 24 February 2020; Issue published 01 May 2020
Abstract
In the present study, an analysis of the heat and mass transfer in a ventilated
cavity in a warm climate zone was carried out to analyze, among others, the temperatures
and percentage of relative humidity (
RH). The governing equations of the mathematical
model were solved through the finite volume method. We used the
k-ε turbulence mode
to find the results of the variables of interest in seven climate records on a given day.
The velocity of the inlet flow of the air-H
2O mixture was varied through the Reynolds
number (
Re) from 500 to 10000. The outdoor weather conditions considered were
solar radiation, ambient temperature, and
RH. It was found that at low velocities, flow
recirculation was formed inside the cavity which increased the temperature and concentration
of
RH. For Re=5000 the flow is predominantly forced, which tends to set the values of
temperature and
RH as 20°C and 20% respectively. The values of the
RH increase in the
afternoon hours when the solar radiation decreases to the value of zero. However, the mass
transfer through the values of
Sh is maintained with similar values in the seven weather
records. It was concluded that when air conditioning supplies air at speeds higher than
0.26 m/s at low temperatures it produces cooling with low
RH, this causes discomfort, illness
and/or discomfort to the users.
Keywords
Cite This Article
Serrano-Arellano, J., Belman-Flores, J. M., Hernández-Pérez, I., Aguilar-Castro, K. M., Macías-Melo, E. V. et al. (2020). Numerical Study of the Distribution of Temperatures and Relative Humidity in a Ventilated Room Located in Warm Weather.
CMES-Computer Modeling in Engineering & Sciences, 123(2), 571–602.
Citations