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Choosing Baseline HVAC-System in climate zone 1b

NC-2009 EAc1:Optimize Energy Performance
posted by  Johannes Hopf  on 

Hi, 90.1-2007 confuses me a little. Our project (4 story, 9000 m²/90000 ft²) is located in climate zone 1b. The proposed building is heated by an electrical heatpump.

1
Tue Oct 23, 2012, 1:43 pm

Theater lighting

NC-2009 EAc1:Optimize Energy Performance
posted by  Keelan Kaiser  on 

I've gone through the threads and can't find a response for a question like this, there must be one, but we have a theater project with all of the speciality lighting associated with this use.

1
Fri Nov 14, 2014, 4:34 pm

EAc1-Overshadowing(LEED v2.2)

NC-2009 EAc1:Optimize Energy Performance
posted by  gwenedd murray  on 

ASHRAE's table G3.1, section 5(a), states the baseline model should not shade itself.

1
Wed Feb 16, 2011, 7:27 pm

ASHRAE 90.1 appendix G - VAV modelisation in baseline system 7

NC-2009 EAc1:Optimize Energy Performance
posted by  Julien Daclin  on 

Hi, I have a question about the interpretation of section G3.1.3.13 (VAV minimum flow setpoints).

1
Wed Dec 12, 2012, 3:36 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.

1
Thu Apr 7, 2011, 12:14 pm

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.

1
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.

1
Mon Aug 13, 2012, 2:50 pm