Friction heat from water

Forum about flow calculators available on pipeflowcalculations.com and how to find solution for your fluid flow problem.
Post Reply
Plerik
Posts: 2
Joined: Wed Jan 12, 2011 5:01 pm

Friction heat from water

Post by Plerik »

Can sommebody tell me how much heat there is generated from water passing through a steel pipe
exc. 200 m3/h in a dn 150 mm pipe lenght 20.000 meter
admin
Site Admin
Posts: 375
Joined: Mon Feb 08, 2010 7:47 pm

Re: Friction heat from water

Post by admin »

Do you mean by friction? What is pipe material? And pipe roughness?
Pipe flow calculations - since 2000
Plerik
Posts: 2
Joined: Wed Jan 12, 2011 5:01 pm

Re: Friction heat from water

Post by Plerik »

Administrator wrote:Do you mean by friction? What is pipe material? And pipe roughness?
I mean the friction betwenn pipe and the water pumped through the pipe, the pipes are steel with roughness 0,1, the temp. inlett is 85°c.
admin
Site Admin
Posts: 375
Joined: Mon Feb 08, 2010 7:47 pm

Re: Friction heat from water

Post by admin »

When you calculate pressure drop in Pa - you can look at it like pressure energy changing to heat due to friction and it is quantity of energy in unit mass J/kg.

So for pressure drop of 1 Pa, with fluid density of 1 kg/m3, you have 1 J of energy per 1 kg of mass.

Dp/rho - J/kg - energy per mass unit
Pipe flow calculations - since 2000
Post Reply