Search found 2 matches

by solarity
Sat May 03, 2014 11:11 am
Forum: Flow calculators and fluid flow problems
Topic: Roughness...
Replies: 2
Views: 10218

Re: Roughness...

Thanks for the response, but I am looking at using plastic corugated pipe like this http://www.jdpipes.co.uk/shop/uploads/p ... 240214.jpg I want turbulent flow so there is more heat exchange.

Do I gather that I can measure the amplitude of the corrugations to get k?
by solarity
Thu May 01, 2014 11:35 pm
Forum: Flow calculators and fluid flow problems
Topic: Roughness...
Replies: 2
Views: 10218

Roughness...

Hi I want to pump air through buried corrugated drainage pipe in order to cool the air. I am looking at the costs of the air pump for using 50m of 160mm pipe or 100m of 100mm pipe so trying to get an idea of the pressure required for 300m3/hr. Found your fantastic calculator but can't find a k value...