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ASHRAE compliance with naturally ventilated building

NC-2009 EAc1:Optimize Energy Performance
posted by  Jean Marais  on 

As per the guidelines, my baseline mechanical system is incorporated into the naturally ventilated design case model 1 to 1, as a priority 2 kind of system that kicks in when the naturally ventilat

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Conditioned vs. unconditioned & natural ventilation

NC-2009 EAc1:Optimize Energy Performance
posted by  SmithGroup BG+LU FW  on 

Table G3.1 in Appendix G requires only conditioned space be simulated as being both heated and cooled in the proposed design.

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Fri Aug 16, 2013, 1:02 pm

EAc1 Space Cooling and Heating

NC-2009 EAc1:Optimize Energy Performance
posted by  Mark Rawson  on 

Hello, When I generate the EAc1 Summary Report in HAP I have a negative percent savings in space cooling and heating in the performance rating table.

1
Fri Jul 7, 2017, 2:12 pm

shgc Values

NC-2009 EAc1:Optimize Energy Performance
posted by  TOMAS URIBE  on 

Hello Marcus. The fenestration supplier of a project gave us SHGC values from a simulation. We would like to know if it is acceptable for LEED simulation.

1
Wed Feb 12, 2014, 8:02 pm

Efficiency curve

NC-2009 EAc1:Optimize Energy Performance
posted by  Francesco Passerini  on 

The efficiency of the boiler that I’m modeling has to respect Table 6.8.1F of ASHRAE 90.1:2007.

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Mon Aug 13, 2012, 2:50 pm
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Wed Jul 28, 2010, 12:38 pm
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Thu Oct 21, 2010, 6:48 pm

Appendix G - Baseline Building Rotations

NC-2009 EAc1:Optimize Energy Performance
posted by  Kalyan Nishtala  on 

Hi All, Are baseline building rotations necessary for a new building that is connected to an existing building. Note that the new building is being modeled as a stand alone.

1
Mon Nov 19, 2012, 5:31 pm

Process Load

NC-2009 EAc1:Optimize Energy Performance
posted by  Muzammal Abbas  on 

Dear all, We are doing a factory project in pakistan, which have a 1200 kw process machinery load, after energy modeling without process load we are saving 55 % from baseline but after adding proce

1
Tue Aug 18, 2015, 1:10 pm

Natural Ventilation - modeling air conditioned as baseline?

NC-2009 EAc1:Optimize Energy Performance
posted by  Eric Longfellow  on 

“We are working on an existing classroom and office building at the University of Hawaii, which will undergo a complete remodeling under LEED-NC v.3.0.

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Thu Apr 7, 2011, 12:14 pm