Study and CFD Analysis of the Effect of Solar Energy on the Times of the Five Daily Prayers in Mosques

Mosques are one of the most important places in Muslims life. Thus, air conditioning application
in them is a highly important issue. Moreover, there are many heat generation water vapor, and carbon
dioxide because of occupancy load in such places. This paper present a simulation study of a typical Mosque
with a capacity about 800 persons during five prayer times (FAJR, DHUHR, ASER, MAGHREB, and
ESHAA). In this work, PMV (Predicted Mean Vote) model and the PPD (Percentage Predicted Dissatisfied)
model are used to predict the thermal comfort. FLUENT® version 14, commercial CFD code, by using
computational fluid dynamics (CFD) simulation to calculate the thermal comfort. This by solving the
Continuity, momentum, energy, and species transport equations in addition four turbulence. The number
of elements that are used in this study is about 5,300,000. All the requirements of ASHRAE conditions
have been achieved taking into account average temperature, the average air velocity, and average relative
humidity.