pressure drop with few knowns
pressure drop with few knowns
My customer asked for the pressure drop in the exhaust pipe of his generator. I've found the correct formula, but I don't know some of the required values for constants. Where can I find pipe roughness, viscosity and density?
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- Joined: Tue Mar 02, 2010 1:12 pm
Re: pressure drop with few knowns
This link will get you your roughness factor;
http://www.engineeringtoolbox.com/major ... d_459.html
Viscosity and density of diesel exhaust at 550-600F may be hard to find. Try soliciting one of the manufacturers like Cummins or Detriot Allison.
http://www.engineeringtoolbox.com/major ... d_459.html
Viscosity and density of diesel exhaust at 550-600F may be hard to find. Try soliciting one of the manufacturers like Cummins or Detriot Allison.
Re: pressure drop with few knowns
Here is one table that should be of help:
http://www.pipeflowcalculations.com/tables/fluegas.htm
You will find that it is for certain mixture of flue gas, but it should be of help.
Mixture consist of:
carbon dioxide CO2 - 13%
water vapor H2O - 11%
nitrogen N2 - 76%
http://www.pipeflowcalculations.com/tables/fluegas.htm
You will find that it is for certain mixture of flue gas, but it should be of help.
Mixture consist of:
carbon dioxide CO2 - 13%
water vapor H2O - 11%
nitrogen N2 - 76%
Pipe flow calculations - since 2000