Liquid side pressure drop in fin tube

[yonglin]

Dear all, good day,

FYI, I am currently doing some projects on finned tube heat exchanger where hot air is travel outside the fin and cool water is inside the tube. It is an air cooled water heated heat exchanger.


My question is that how we calculate the pressure drop of the water inside the tube which is usually measured in mmwg @ mmH2o?

Could any experts here show me the way/formula/equation to calculate it?or is there any link, pdf file that can share to help me in calculating the liquid side pressure drop for the finned tube?

Thank you very much

 

[BigInch]

Google "pipe pressure drop".

**********************
"Pumping accounts for 20% of the world’s energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies)

http://virtualpipeline.spaces.live.com/

 

[ione]

I think this could help

http://www.wlv.com/products/databook/ch2_4.pdf

 

[MikeHalloran]

The inside of the tube is not finned; it's just regular pipe, or tube, or whatever was used as a core for the fins.


Mike Halloran
Pembroke Pines, FL, USA

 

[BigInch]

http://www.pipeflowcalculations.com/pressuredrop/index.htm

**********************
"Pumping accounts for 20% of the world’s energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies)

http://virtualpipeline.spaces.live.com/