Investigation of combined ventilation in the comfort conditions of an isolated room

Abstract

An air conditioning system is characterized as a device that controls the air's temperature, flow, and humidity within a specific space. If an air conditioning system can guarantee that a room is comfortable, then it functions well. This investigation has assessed the properties of air dispersion and evaluated the factors and conditions outside the classroom. These variables include temperature, relative humidity, air speed, and CO2 content. The average relative humidity of the air exhibits a similar pattern to that of the average CO2 concentration, beginning to decline as air input via the valve increases. Furthermore, CO2 content is a primary determinant of indoor air quality; numerical simulation results are used to assess its value in relation to people's mouths and noses. Because of its distance from the flow source, the air velocity distribution near the ground is minimal and falls within the advised thermal comfort range. The room's air temperature is managed by the existing ceiling air conditioner, which enters the space at a 45-degree angle. An excellent combination of appropriate room air quality conditions and energy conservation can be accomplished by utilizing the ceiling cooler and the ventilation system's airflow rate.