• AMITESH PAUL
• A.C. TIWARI

Air curtain door system or air door system is a mechanism or method used to separate two different environmental conditions or two different atmospheres and contaminants existing from one space to another with the help of blower fan mounted toward downwards at the entrance of building with respect to the door height. While flow of air across the door are basically characterized in to two categories that is intrinsic and extrinsic flow of air. Here in this work, parametric evaluation of different parameters of air curtain were performed. In this work different air curtain performance were analyzed numerically. For performing the numerical analysis of air curtain, here in this work Ansys (Fluent) was used. To analyze the effect of different pressure difference across the door, in this work fourteen pressure difference condition across the door were analyzed numerically. For analyzing effect of difference velocity of air jet on air curtain performance, this study considered 5, 7, 9, 11, 13 and 15 m/s velocities of air jet and calculates volume flow rate of air at outer outlet. With 15 m/s velocity of air jet, the air curtain is able to restrict the flow of air up to 20 Pa pressure difference across the door. The effect of different air jet angle on the performance of air curtain was also analyzed with the help of CFD analysis. For calculating the effect of different air jet angle on volume flow rate of air at outer outlet, in this work it considered six different inclination angle of air curtain jet that is 0, 5, 10, 15, 20 and 25 degree. Through analysis it is found that, for each pressure difference 15 degree inclination angle of air curtain jet shows the minimum volume flow rate of air.

air curtain, jet angle, jet velocity, pressure difference, volume flow rate

"Effect of air jet velocity and angle on the performance of air curtain at different pressure difference conditions", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.617-631, April-2019, Available :http://www.jetir.org/papers/JETIR1904186.pdf

"Effect of air jet velocity and angle on the performance of air curtain at different pressure difference conditions", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp617-631, April-2019, Available at : http://www.jetir.org/papers/JETIR1904186.pdf