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ASHRAE 90.1-minimum COP applies to old existing air conditioners?

NC-2009 EAp2:Minimum Energy Performance
posted by  Hieu Huynh  on 

Hi LEED experts,

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Hieu Huynh
Environmental engineering
LEEDuser Basic Member
3 thumbs up
Thu Jul 5, 2018, 3:58 pm
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Pumps: Balancing Report HPs vs Design

NC-2009 EAp2:Minimum Energy Performance
posted by  Gaston Viau  on 

Hi there

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Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up
Wed Jun 20, 2018, 8:16 pm
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Assigning two ac systems to a single zone

NC-2009 EAp2:Minimum Energy Performance
posted by  Madushan Samarakoon   on 

I am working with shopping mall project. each shop has equipped with FCU units for air conditioning while separate treated fresh air AHU (PAHU) is supplying fresh air to each shop.

2
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Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
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Tue Jun 12, 2018, 6:44 am
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Energy savings from Battery Storage

NC-2009 EAp2:Minimum Energy Performance
posted by  Vinay Shekar  on 

Hello,

1
Fri Jun 8, 2018, 7:20 pm
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Modeling Heat Recovering Chillers for the Baseline

NC-2009 EAp2:Minimum Energy Performance
posted by  Paula Hernandez  on 

Hello,

I want to know which the energy savings are comparing a Heat Recovery Air Cooled Chiller in the Proposed Building versus it´s equivalent in the Baseline Building.

4
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Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
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Wed Jun 6, 2018, 11:00 am
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Process Loads

NC-2009 EAp2:Minimum Energy Performance
posted by  Paula Hernandez  on 

Hello,

I am modeling a winery and some of the chillers participate only to chilled and heat wine tanks.

2
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Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
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Tue Jun 5, 2018, 5:38 pm
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Design Changes

NC-2009 EAp2:Minimum Energy Performance
posted by  PAWAN DAHIWAL  on 

I believe, In any case the proposed building can not be 100% as per design. There will be always variation regarding HVAC equipment selection (e.g.

1
Mon Jun 4, 2018, 3:54 pm
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Plug Load Reduction Using ASHRAE - 2010

NC-2009 EAp2:Minimum Energy Performance
posted by  Thomas Hellmann  on 

Has anyone heard of using ASHRAE 90.1-2010 section 8.4.2 Automatic Receptacle Control within LEED version 3 to show load reductions for the plug loads.

4
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Marcus Sheffer
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7group / Energy Opportunities
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Sun May 20, 2018, 9:40 pm
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Fans cycling during unoccupied hours

NC-2009 EAp2:Minimum Energy Performance
posted by  Gopinath Vasu  on 
Hi All, I have a doubt regarding modeling fans cycling during unoccupied hours as per ASHRAE 90.1 section G 3.1.2.4.
1
Thu May 17, 2018, 4:01 pm
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Method to report proposed case Energy consumption - On site Gas Engine based electricity generation

NC-2009 EAp2:Minimum Energy Performance
posted by  Rahula Attalage  on 

Dear All,

I have received the following comment by the reviewer:

6
Thu May 17, 2018, 2:34 pm