Emergency Generator: Fuel Oil Piping Losses 1

[glapfk11]

All:

I am trying to design a fuel oil delivery system for severeal emergency generators to be installed at a water traetment plant.

Currently, I am in the process of checking the sizes of the fuel delivery lines in order to make sure that the headlosses are kept to a minimum.

I performed some rough calcs using the Hazen-Williams equation to find my headlosses...however I'm not sure that this is the correct approach.

Shouldn't I be taking the density/viscosity of the oil into account since oil does not behave the same as water?

Does anyone know what equation I should be using to calculate the headloss of a non-aqueous fluid?

I looked at the Poiseuill Equation as a possibility (hl=(32*kinamatic viscosity*length of pipie*Velocity)/(g*diameter^2)but then ruled it out b/c it only applies to laminar flow...any suggestions?

 

[bimr]

Hazen-Williams is not going to work for you. Get yourself a copy of Crane Technical Paper No. 410. There are examples of methods to use in that publication. The publication also has the relevant chemical properities for fuel oil.

You should be looking at a velocity of 4-7 feet per second.

 

[glapfk11]

Thanks!

 

[stanier]

Use the Darcy Equation

 

[dicksewerrat]

Why not put fuel tanks with each generator? Then you won't have oil lines running all over for the maintenance staff to cut.

Richard A. Cornelius, P.E.

http://WWW.amlinereast.com