Search found 5 matches

by ahbuckman
Mon Jul 14, 2014 4:28 pm
Forum: MacroFlo
Topic: Coefficient of discharge and flow coefficient
Replies: 0
Views: 14582

Coefficient of discharge and flow coefficient

Hi,

I'm looking into the calculation of volume flow rate through a louvre within Macroflo, as I will then be exporting this data to another software package.

In the macroflo theory there are two points which I would like some clarification on please.

The first is that the discharge coefficient ...
by ahbuckman
Tue Jul 02, 2013 5:12 pm
Forum: MacroFlo
Topic: Dynamic external temperature dependent window profile
Replies: 4
Views: 9791

Re: Dynamic external temperature dependent window profile

Great, thank you.

When Tin-Tex < 6 the vent rate needs to be 10l/s/p
when between 6 and 9, the vent rate would be 7l/s/p
when above 9 then the vent rate would be 2l/s/p
when Tin is above 23 then the vent rate needs to be 30l/s/p

I currently have a large 4 floor atrium with glazed east and west ...
by ahbuckman
Tue Jul 02, 2013 4:44 pm
Forum: MacroFlo
Topic: Dynamic external temperature dependent window profile
Replies: 4
Views: 9791

Dynamic external temperature dependent window profile

Hi there,

I'm looking to create an operational profile that varies with respect to internal/external temperature difference, for a naturally ventilated atrium.

This is useful since the natural ventilation rate varies with respect to the external temperature, with the smaller the different between ...
by ahbuckman
Tue Jun 25, 2013 3:42 pm
Forum: ModelIT
Topic: New elipse zone within an atrium
Replies: 3
Views: 11878

Re: New elipse zone within an atrium

Thanks Phil and Marc,

I've got a while to try and do this (I'm a university researcher) so I will do as you say and start small and get bigger.

If anyone else reading this has any other experience modelling atriums then I would be very interested to hear about it.

Many thanks

Alex
by ahbuckman
Mon May 13, 2013 2:18 pm
Forum: ModelIT
Topic: New elipse zone within an atrium
Replies: 3
Views: 11878

New elipse zone within an atrium

I hope that someone can advise me on this. I am relatively new to IES.

I have built an atrium consisting of a decent number of zones with each wall appropriately defined as a hole in order to simulate a large airspace whilst maintaining some granularity throughout the zone. The atrium will be ...