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Lighting power densities for building exteriors

CS-2009 EAp2:Minimum Energy Performance
posted by  Rosana Correa  on 

The maximum power allowance for building façades is 2.2 W/m2 for each illuminated wall or surface.

1
Thu Jul 26, 2012, 4:24 pm

Process Loads

CS-2009 EAp2:Minimum Energy Performance
posted by  Rodrigo Vazquez  on 

We are working on a project in Mexico City, to comply with the prerequisite 2 we are following Option 1, whole building energy simulation. In the first simulation we´d done of the energy model we c

1
Tue May 27, 2014, 4:11 pm

Lighting Building Area method

CS-2009 EAp2:Minimum Energy Performance
posted by  Pia Öhrling  on 

If the building is an office building with a small part retail and restaurant how should the areas be calculated for lighting when using the Building Area method?? The space usage types listed in P

1
Fri Oct 31, 2014, 6:55 pm

Calculating "Projection Factor" for curtainwall shading devices

CS-2009 EAp2:Minimum Energy Performance
posted by  Amit Ahiel  on 

I'm working on a project where part of the curtain wall has a few random horizontal elements that project from the vision panels from floor to ceiling. These elements provide shading and therefor

0

HVAC system for 5 storey office block.

CS-2009 EAp2:Minimum Energy Performance
posted by  Ciaran McCabe  on 

I am modeling a core and shell building with 5 floors. This building will be served by two air handling units.

1
Mon Dec 7, 2015, 4:45 pm

Record Time for ASHRAE appx G Simulation?

CS-2009 EAp2:Minimum Energy Performance
posted by  Jean Marais  on 

What's your record time? What software did you use?

1
Sat Oct 1, 2011, 12:04 am

EAp2 Sample L4 Narrative

CS-2009 EAp2:Minimum Energy Performance
posted by  Thomas Newbold  on 

Are there any sample narratives available on LEEDUser to satisfy Upload L-4? "Provide a detailed narrative describing the intended credit Files: approach, including energy efficiency measures that

0

Vestibules for conditioned buildings

CS-2009 EAp2:Minimum Energy Performance
posted by  Julio Alvarado  on 

We have a CS project, climatized, on which the client is insisting we should not have entrance vestibules, which to my understanding is mandatory under ASHRAE 90.1.

1
Mon Jan 9, 2012, 4:46 pm

ACP % calculation

CS-2009 EAp2:Minimum Energy Performance
posted by  Charalampos Giannikopoulos  on 

For the calculation of the % of energy cost influenced or directly controlled by CS Owner/Developer would the the latter be compared to the total energy cost of the proposed and not the baseline bu

1
Tue Jul 19, 2016, 3:50 pm

demand control ventilation

CS-2009 EAp2:Minimum Energy Performance
posted by  tiantian zhou  on 

Dear sir, according to G3.1.2.5 of 90.1, Minimum outdoor air ventilation rates shall be the same for the proposed and baseline building designs except that When modeling demand-control ventilation

1
Wed Dec 4, 2013, 2:20 pm