CFD Analysis of Temperature Stratification and the Effect of Diffuser Inlet Position Inside the System

Under floor air distribution systems (UFAD) have received increasing attention during the past decades due to potential advantage over conventional overhead forced air system. The diffuser inlet air velocity, Heat load inside the system, volume flow rate have major effect on the UFAD system. Here in this work we are analyzing the velocity flow behavior of air coming from the diffuser inlet in order to provide better comfort inside the system. Here it also analyzed the temperature stratification in order to maintain better thermal conditioning inside the control system. It consider the three point denoted by A, B, and C as a center of diffuser inlet, local heat source and free space position. We analyzed the velocity flow profile at all these three position in order to provide better mixing of air so that it can maintain the better human conditioning inside the system. It also analyzed the temperature distribution at different horizontal plane which is at different distance from the ground floor. It also finds the temperature difference in between different horizontal plane in order to find the better comfort conditioning. Then after it also calculate the effect of the position of the diffuser inlet on the temperature stratification and also find the optimal position of the diffuser inlet in order to provide better mixing of air inside the system, so that better comfort conditioning can be achieved.