Fan outlet temperature
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This post was last edited by kingberg on 2009-11-11 at 11:19. I would like to know by how many degrees the temperature of the gas exiting a centrifugal fan is usually higher than that at the inlet, and what causes this. Thank you!
Is it similar to a centrifugal pump, where there is a certain pressure difference at the inlet and outlet of the centrifugal fan, which leads to temperature differences? Please provide a detailed explanation!
The temperature difference between the inlet and outlet air is very small, and is usually negligible. The temperature at the exhaust outlet is slightly higher; this is likely due to the compression of air or heat generated by the friction caused by the rotation of the fan blades.
This post was last edited by Xiao Mu on 2013-8-1 at 13:05. Based on my experience using centrifugal fans in the field, for every increase of 1 kPa in pressure, the air temperature at the outlet rises by 1°C compared to that at the inlet.
PT/V = k, calculated as T = KV/P