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Core Performance Guide

NC-2009 EAp2:Minimum Energy Performance
posted by  Tricia Loe  on 

I have a project that is considering using the Core Performance Guide option for compliance with this credit.

1
Wed Aug 16, 2017, 7:11 pm

Plant Design for Proposed bldg

NC-2009 EAp2:Minimum Energy Performance
posted by  Julian Park  on 

If a new building will be served by an existing chiller plant that already serves an existing building, does the Plant design for the Proposed Alternative need to model the full chiller size, even

1
Thu Mar 5, 2015, 5:35 pm

ASHRAE 90.1 vs T-24 in california

NC-2009 EAp2:Minimum Energy Performance
posted by  Lance Collins  on 

Question: I am working on a new LEED-NC project in california that is using a modular/prefab construction type with mechanical systems that do not require permits via the T-24 code.

1
Tue Feb 8, 2011, 5:19 am

Chilled Water Pumps, Primary/Secondary

NC-2009 EAp2:Minimum Energy Performance
posted by  Aaron Dahlstrom  on 

ASHRAE 90.1-2007 Sec G3.1.3.10 requests that users specify pump power of 22 W/gpm, with a primary / secondary pumping system and variable flow on the secondary side.

1
Fri May 18, 2012, 3:43 pm

Conditioned Space

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

Consider a space, storage, with no heating, modelled with heating setpoint -50 degC, receives air from a central air handling unit VAV system, where the delivered air is pre-conditioned from Outdoo

1
Tue Feb 12, 2013, 3:46 pm

Parallel PIU fan energy

NC-2009 EAp2:Minimum Energy Performance
posted by  Magda Aghababyan  on 

My baseline is under system 6 in which the parallel PIU fans has to be introduced for each zones.

1
Fri Jun 20, 2014, 2:39 pm

Separated Baselines for Residential and Non-residential Portions

NC-2009 EAp2:Minimum Energy Performance
posted by  Wenguang Wang  on 

We have a hotel development project in China seeking for the LEED-NC v2009 certification. We are now facing a problem of setting the baseline case for the energy model.

1
Wed Apr 13, 2011, 12:27 pm

ASHRAE 90.1 - Section 8 Voltage Drop

NC-2009 EAp2:Minimum Energy Performance
posted by  Carolina Vergnano  on 

In the section 8.4 Feeder conductors shall be sized for a maximum voltage drop of 2% at design loadand branch circuit condutors shall be sized for a maximum voltage drop of 3% at design load. I'm

1
Wed Jun 29, 2011, 3:18 pm

Base case and proposed case modeling

NC-2009 EAp2:Minimum Energy Performance
posted by  CONSTANZA CATTAN  on 

At he moment, we are modeling a buried building with a green roof (as part of the energy efficiency strategy) according to the appendix G of the ASHRAE standard 90.1 (2007) The question regards the

1
Wed Oct 30, 2013, 11:08 pm

Vestibules

NC-2009 EAp2:Minimum Energy Performance
posted by  Viktor Reutherborg  on 

I'm working on a big building, mostly office but not exclusively, in Stockholm, Sweden. I'm currently working on a restaurant on the ground floor with an entrance from outside.

1
Fri Aug 15, 2014, 2:29 pm