Pete Cook's Activities

Netsys CWS Pressure Drop Column

Pete Cook — Mon, 19 Jul 2021 11:18:12 GMT

Hello,

I've completed some Netsys cold water pipesizing and issued the results to some Consultants. We've received a comment back that they are happy with the pipe sizing but the pressure drops look excessive. I've always carried out the pipe sizing in the same way during the 15 odd years I've been using Hevacomp, but never been questioned about the pressure drops.

I've set the source pressure to 300 (3 bar) and minimum pressure at outlets to 50 (0.5 bar).

On the below results is it saying that for section 1, there is a 2.433 kPa pressure drop across the 2.4m length of pipe?

Do the pressure drops seem correct or am I doing something wrong? I just want to be able to answer the consultants query correctly :-)

Regards

Pete

Netsys Ductwork - Runtime Error 6: Overflow

Pete Cook — Mon, 18 Nov 2019 13:38:57 GMT

Good Afternoon,

I've just completed a ductwork system for a Travelodge hotel. I managed to run the calculation successfully but then I've gone back to fix some ductwork sizes on the top floor and added some dampers. Since I've done this I constantly get a runtime error 6 overflow error and then it crashes. Can anyone help please??

Kind Regards

Pete

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Mon, 18 Nov 2019 03:15:06 GMT

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How do I add an Extract Ventilation Rate to a room?

Pete Cook — Fri, 07 Apr 2017 13:11:28 GMT

I have a project set up in the Design Database and have carried out the Heat Loss Calculations. I now need to go back and alter a few rooms which have Extract Ventilation only so add this ventilation rate and remove the natural infiltration. I'm sure I've done this before but can't remember how it's done? Can anyone point me in the right direction please?

I can see how to add supply air but not the extract rates.

Thanks

Pete