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ASHRAE Mandatory Provisions for Power

NC-2009 EAp2: Minimum Energy Performance
posted by Carolina Vergnano on Mar 16, 2011, 8:49 am

I'm working on LEED for a stadium, and we have a bit of trouble interpreting requirements of ASHRAE 90.1 -2007 section 8.

The project will have a tranformer that will filter the high...

Last reply: Marcus Sheffer, Apr 13, 2011, 8:33 am

Separated Baselines for Residential and Non-residential Portions

NC-2009 EAp2: Minimum Energy Performance
posted by Wenguang Wang on Apr 13, 2011, 6:11 am

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.

The project floor...

Last reply: Marcus Sheffer, Apr 13, 2011, 8:27 am

LEED certification without heating and cooling systems

NC-2009 EAp2: Minimum Energy Performance
posted by Felipe Duran on Mar 16, 2011, 12:32 pm

I am working on a school project and it does not consider a heating system nor a cooling system at all ¿Is it possible to certified a building which does not have a these systems and therefore...

Last reply: Keith Steurer, Mar 29, 2011, 9:04 am

outdoor air unit system type

NC-2009 EAp2: Minimum Energy Performance
posted by Ana Davidovic on Mar 28, 2011, 8:44 am

I have a project that is classified as a high rise residential building. In the proposed design, the living units are conditioned by water source heat pumps and ventilated via natural ventilation...

Last reply: Marcus Sheffer, Mar 28, 2011, 5:28 pm

How to model slab-on-grade floor in simulation program

NC-2009 EAp2: Minimum Energy Performance
posted by lin wang on Mar 15, 2011, 11:38 pm

As ASHREA90.1-2007 shown,the slab-on-grade floor of baseline building shoud be modeled by the parameter of F-factor.But the parameter to model slab-on-grade floor in program eQuest is...

Last reply: Marcus Sheffer, Mar 16, 2011, 1:59 pm

question about set of fan power in simulation program

NC-2009 EAp2: Minimum Energy Performance
posted by lin wang on Mar 13, 2011, 10:28 pm

The fan power calculated by the formula presented in APPENDIX G3.1.2.9 of ASHREA90.1-2007 is the sum of all the fan power including supply fan,returen fan,exaust/relief fan.

However,in...

Last reply: Marcus Sheffer, Mar 14, 2011, 9:04 am

Natural ventilation-energy modeling

NC-2009 EAp2: Minimum Energy Performance
posted by Camilo Velez on Feb 8, 2011, 3:43 pm

It's the firts time that we work with LEED, and we are working in the desing of a office bulding, that will have natural ventilation system, instead of a standar HVAC system, (we already did...

Last reply: Marcus Sheffer, Mar 12, 2011, 2:00 pm

Digital signature / initials

NC-2009 EAp2: Minimum Energy Performance
posted by Nicolas Galiotto on Sep 6, 2010, 9:48 am

Hi Christopher, hi all,

A few online forms (EAp2 included) require a digital signature (required signatory) from the owner, the mechanical amd electrical engineers, etc.

Can a LEED...

Last reply: David Hubka, Feb 25, 2011, 10:08 am

How to justify not using the default 25% process energy cost

NC-2009 EAp2: Minimum Energy Performance
posted by V. Miller on Aug 24, 2010, 5:50 am

I am wondering how we can go about justifying not using the default...

Last reply: Tristan Roberts, Feb 25, 2011, 12:28 am

Service Hot Water Efficiency Proposed vs. Baseline

NC-2009 EAp2: Minimum Energy Performance
posted by Paul Bohres on Feb 22, 2011, 5:29 pm

How do you account for the difference in service hot water efficiency from the proposed design to the baseline design if the proposed design is using electric point-of-use water heaters? Is...

Last reply: David Hubka, Feb 23, 2011, 1:56 pm