Abstract
The present study emphases the numerical investigation of the change in the overall indoor environment of a mechanically heated room, due to alteration in direction of the cold air stream at the inlet. This study is important to find the correlation between the configuration of altered geometry on the indoor environment quality and human comfort. Different case studies have been studied by altering the direction of the flow of the unidirectional velocity vector (U) by turning clockwise around the Z-axis and keeping other geometry parameters unaltered. Numerically simulated observations have been analyzed to study the effect of changed airflow direction at the inlet on indoor environmental quality Slight variations in the indoor environment were observed due to changed inlet angle set from 0°-60°, but for the largest angle setting of (80°), considerable changes were observed ins temperature and flow patterns. When the inlet vent angle increased from 0°-80°, the airflow and thermal pattern in room changes. More swirls and circulation observed in the case of higher inlet angles. PPD values for subsequent cases were found under control for all the set of inlet angles. The lowest PPD and PMV values observed for an 80° inlet angle setting. The outcomes of the research would be valuable for the design and optimization of local buildings and more energy can be hoarded by proper installations of equipment and inlet vent location.
Highlights
Nowadays energy is an essential resource and demand for energy is growing
This study focuses more on the direction of the inlet cold air stream instead of magnitude and spotlights the effect of a change in direction of cold air inlet stream on the room airflow and indoor thermal conditions
To maintain the required thermal comfort conditions in the occupied zone the unvarying heat flux was specified to the double-panel radiator
Summary
Nowadays energy is an essential resource and demand for energy is growing. Many negative effects of energy production can be seen in the environment, such as environmental pollution and global warming. In several parts of the earth, weather conditions are very harsh and indoor environment needs to be artificially/mechanically maintained to a human comfort level. Published By: Effect of Inlet Airflow Direction on the Indoor Environment of a Naturally Ventilated Room using CFD artificial affects the thermal comfort required by the occupant. Air movement in the occupied zone affects the thermal comfort of the human occupant. HVAC (heating, ventilation and air conditioning) deals with the study of airflow movement and temperature analysis of the indoor environment. This study focuses more on the direction of the inlet cold air stream instead of magnitude and spotlights the effect of a change in direction of cold air inlet stream on the room airflow and indoor thermal conditions. The thermal conditions in the occupied zone depend on the air temperature at the inlet and probably on the direction of the fresh cold air stream.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
