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Question Regarding Process Loads

NC-2009 EAp2: Minimum Energy Performance
posted by Brian Salazar on Nov 14, 2013, 11:29 am

Hello again! We are finalizing our model for a v3 Core and Shell Building Renovation. Our model is telling us that our process loads are under the requisite 25%, 23.66% to be exact. We would...

Last reply: Marcus Sheffer, Nov 14, 2013, 1:37 pm

Heat pump dehumidifier minimum efficiency requirements

NC-2009 EAp2: Minimum Energy Performance
posted by Ricardo Sá on Nov 12, 2013, 1:11 pm

Can anyone please clarify which, if any, minimum efficiency requirements are set for heat-pump dehumidifiers (indoor swimming pool dehumidifiers) under ASHRAE 90.1 (2007)?

Last reply: Marcus Sheffer, Nov 12, 2013, 1:46 pm

ASHRAE 90.1 2004 TABLE 6.8.1D

NC-2009 EAp2: Minimum Energy Performance
posted by Keerthi Ratnayake on Nov 8, 2013, 1:07 am

Hi,
Our problem is with PTHP (cooling mode) new construction.

The footnote 'c' is bit confusing. According to the footnote, the capacity should be in KW and some publish documents...

Last reply: Marcus Sheffer, Nov 12, 2013, 9:39 am

HVAC System Type for Baseline Case

NC-2009 EAp2: Minimum Energy Performance
posted by Santiago Rodriguez on Nov 11, 2013, 11:36 am

Hello,

I have a question on which HVAC system type to choose for the baseline case for a project consisting of 4 buildings. The buildings have separate HVAC systems designed, and each...

Last reply: Marcus Sheffer, Nov 11, 2013, 12:37 pm

Opaque panels

NC-2009 EAp2: Minimum Energy Performance
posted by Francesco Passerini on Nov 6, 2013, 10:05 am

Similarly to the situation of this picture
http://www.waymarking.com/gallery/image....

Last reply: Marcus Sheffer, Nov 6, 2013, 11:36 am

System 7: selection of heating system

NC-2009 EAp2: Minimum Energy Performance
posted by Roberto Oshiro Gama on Nov 6, 2013, 7:06 am

I,m working on a project were the proposed building has 2 ground water heat pumps with total capaciyt approx. 2300 kW. According to ASHRAE G3.1.1 should I select the system 7, fossil fuel boiler...

Last reply: Marcus Sheffer, Nov 6, 2013, 11:23 am

Baseline System? 110,000 sf building w/ code exh requirement

NC-2009 EAp2: Minimum Energy Performance
posted by Joe Bouley on Oct 29, 2013, 1:12 pm

I'm working on a Vehicle Maintenance Facility that is one-story, 110,000 sf with the following breakdown:

-approx 85,000 sf of indoor parking
-approx 11,000 sf of mechanics...

Last reply: Marcus Sheffer, Nov 5, 2013, 9:19 am

Existing HVAC Baseline Modelling criteria

NC-2009 EAp2: Minimum Energy Performance
posted by Zonda E. Team on Nov 1, 2013, 4:21 pm

Hi, I have modelled a project following Appendix G. I received review regarding HVAC system baseline type selection.

The project is a mayor renovations + Additions (existing conditioned...

Last reply: Marcus Sheffer, Nov 4, 2013, 11:26 am

Cooling cost for ground water cooling

NC-2009 EAp2: Minimum Energy Performance
posted by Roberto Oshiro Gama on Nov 4, 2013, 8:47 am

Hallo Marcus,

I am doing a WBS for an office building, which cooling is supplied by ground water.
The only energy consumption of ground water cooling is the energy need for the...

Last reply: Marcus Sheffer, Nov 4, 2013, 10:02 am

Modeling Commercial Kitchen Energy Usage

NC-2009 EAp2: Minimum Energy Performance
posted by Dónal O'Connor on Oct 30, 2013, 12:51 pm

Hi all,

I would be grateful if somebody could direct me to any resources that outline how to accurately model commercial kitchen energy usage.

Regards,

Dónal

Last reply: Dónal O'Connor, Nov 4, 2013, 8:57 am