How much does the fan heat the air?
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I discovered something that surprised me today. I just started monitoring the disk recently. Today, the ambient temperature is less than 1 degree, but the outlet temperature of the blower is 16 degrees. The outlet temperature of the primary fan is as high as more than 20 degrees. Does the fan have such a great heating effect on the air? electric power union|Thermoelectric|thermal power|nuclear power|Water and electricity|standard|energy|Energy saving 0 ] & w- p# Q * Y& Create the most authoritative technology exchange platform in the power industry|Thermoelectric|thermal power|nuclear power|Water and electricity|standard|energy|Energy saving: h( S7 N1 ^: b1 a" ] 2 a I thought of two reasons. One is that the heater is leaking, and the other is that the outlet air temperature measuring point of the fan may be relatively close to the air preheater. I wonder if this is the case? The fan should have a certain heating effect on the air, but is it that big? Please advise!
Generally speaking, the heating effect of low-pressure fans is not obvious, while that of high-pressure fans such as compressors is more obvious. The reason is very simple. The fan compresses the gas. The greater the compression ratio, the more work is done on the gas, and the greater the temperature rise.
The compression temperature rise of the 1000KW double-inlet and double-outlet centrifugal fan in our factory is 17°C.