Search found 17 matches

by david373348
Thu Jun 04, 2015 11:42 am
Forum: ApacheHVAC
Topic: Supply air temperature as a function of exhaust air temp?
Replies: 3
Views: 6622

Re: Supply air temperature as a function of exhaust air temp

For me, even if the sensor is placed downstream the control stills work with outside temperature,

Regards,
David Garcia
by david373348
Mon May 06, 2013 8:27 am
Forum: ApacheSim
Topic: heat pump
Replies: 2
Views: 4310

Re: heat pump

You shoud just take out the heating loads and divide them by you COP outside in Excel,
by david373348
Mon Apr 29, 2013 1:46 pm
Forum: Radiance
Topic: Mirror material in IES Radiance,
Replies: 3
Views: 8657

Mirror material in IES Radiance,

Hi,

I was surprised that mirror materials in radiance can't be modelled :o in IES radiance. I know that high specularity plastic can do most of the task of surfaces with high reflectances, but, in that sense it can not give good a good approach in quasi-mirror surface as solartubes or heliostats in ...
by david373348
Mon Apr 29, 2013 1:35 pm
Forum: ApacheSim
Topic: Insulate roof in summer doesn't give good results in VE
Replies: 1
Views: 3654

Re: Insulate roof in summer doesn't give good results in VE

I have the reponse of this,

In fact it was a missconception that starts in the fact that metal sheets in hangar are very very thin :lol:

Regards,
DGS
by david373348
Fri Apr 19, 2013 9:25 am
Forum: ApacheSim
Topic: Insulate roof in summer doesn't give good results in VE
Replies: 1
Views: 3654

Insulate roof in summer doesn't give good results in VE

Hi all

I have a project where I need to model a maintenance hangar,

In this project we are evaluating the relevance of insulate the roof to improve the confort level in summer. The hangar has no air conditioned system but we use natural ventilation which seems to work well.

The problems comes ...
by david373348
Tue Dec 11, 2012 4:54 pm
Forum: SketchUp plug-in
Topic: What data is behind my choices?
Replies: 8
Views: 10932

Re: What data is behind my choices?

Hi all,

I also have the same questions about all the provenance of all the information is exported with the IES Sketchup plugin, its seems it cames from ASHRAE, but I couldn't find any documentation who confirm this.

Also the link from the prevous work doesn't work,

Thanks in advance for any help ...
by david373348
Wed Dec 05, 2012 11:10 am
Forum: ApacheCalc/Loads
Topic: People Dissatisfied
Replies: 2
Views: 6471

Re: People Dissatisfied

in the definition of PPD and PMW comfort probabilities there are already 5 or 10% (I don't remember well) of the people which it will be dissatisfied even if you put them in Hawaii with a beer on the size :lol:

So you need to take this in account for your analysis,

Regards

David Garcia ...
by david373348
Wed Dec 05, 2012 10:45 am
Forum: Vista
Topic: What does "Solar Gain" include?
Replies: 2
Views: 6649

Re: What does "Solar Gain" include?

I have also the same question... anyone? :(

David Garcia
by david373348
Wed Dec 05, 2012 10:39 am
Forum: VE (For Engineers and Architects)
Topic: Topography in VE?
Replies: 3
Views: 6434

Re: Topography in VE?

Hi, I have a question more or less on the same topic: This topography will work also in ApacheSim? In fact I'm just guessing if the use of the shadows surfaces as a "ground" will have a negative impact in the thermal properties between the building floor and the "ground".

Maybe I'm just a little ...
by david373348
Mon Oct 15, 2012 1:42 pm
Forum: FlucsDL/Pro
Topic: Atrium / lightwell DL results
Replies: 2
Views: 7781

Re: Atrium / lightwell DL results

I'm not an expert on the subject, but is not due the fact that you use interreflections on the medium and high level analysis and those analysis alter your results, I think you can dissable reflections in the advanced options,

I hope it helps
Regards
David Garcia Sanchez