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EA p2

NC-2009 EAp2:Minimum Energy Performance
posted by  John Lee  on 

I haven't energy modeled yet and am reviewing someone else's work on EAp2.

2
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up
Wed Mar 11, 2015, 6:08 pm

System 8 VAV + PFP boxes

NC-2009 EAp2:Minimum Energy Performance
posted by  Giuseppina Amorusi  on 

Dear All, We are modelling a Baseline Building with System 8 “VAV + PFP boxes” using HAP by Carrier. We are wondering how to model the VAV + PFP boxes according to ASHRAE 90.1 Section 3.1.3.14.

2
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up
Tue Mar 10, 2015, 3:08 pm

Precision Air Conditioning for Server Room and Art Gallery

NC-2009 EAp2:Minimum Energy Performance
posted by  Panupant Phapant  on 

Dear All We have two projects that are attempting LEED 2009 NC Certification the first one is office building with server room and the second one is Arg Gallery.

5
Fri Mar 6, 2015, 2:34 am

District steam

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

If we convert district steam to hot water for space heating, is there any guideline on the efficiency (of heat exchanger) for baseline model?

4
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up
Wed Mar 4, 2015, 4:35 pm

G3.1.10 (d) "Heating only System"

NC-2009 EAp2:Minimum Energy Performance
posted by  Anil Bhari  on 

Based upon G3.1.10 (d) “Where no cooling system exists or no cooling system has been specified, the cooling system shall be identical to the system modeled in the baseline building” Does this mean

6
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Min engineering inc
LEEDuser Basic Member
2 thumbs up
Fri Feb 27, 2015, 9:51 pm

Saving percentage round up to the nearest integer?

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

Will LEED round up the saving percentage to the nearest integer? e.g. 19.8% to 20%? Thanks in advance

6
LEED Fellow
7group / Energy Opportunities
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Fri Feb 27, 2015, 2:34 pm

Baseline Return/Relief Fan Power

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

90.1 AppG G3.1.2.8 says the return/relief fan should be sized for max (SA-OA, 90%*SA) [cfm]. But in table 1.4. the allowable fan power is only based on the supply fan power.

3
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Energy Modeler
KJWW Engineering
LEEDuser Basic Member
3 thumbs up
Tue Feb 24, 2015, 3:20 pm

Actual building floor area and modeled floor area

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

I wonder if there is a rule on how much the difference between the actual and modeled floor area can be in LEED. Thanks

3
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Energy Modeler
KJWW Engineering
LEEDuser Basic Member
3 thumbs up
Fri Feb 20, 2015, 10:07 am

Process refrigeration

NC-2009 EAp2:Minimum Energy Performance
posted by  André Harms  on 

Hello. Apologies for posting on two credits but Scott Bowman rightfully suggested I re-post here. Regarding an ice cream manufacturing facility where we are managing the Cx process I have two queri

3
Ecolution Consulting
LEEDuser Basic Member
1 thumbs up
Fri Feb 13, 2015, 9:34 pm

Modeling Water-source Variable Refrigerant Volume Systems

NC-2009 EAp2:Minimum Energy Performance
posted by  Eric Webber  on 

Hey everyone, I have a question about the best software choice and modeling strategy for water-source VRV (or VRF) systems.

4
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up
Fri Jan 30, 2015, 3:59 pm