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U-values for mixed-use building

NC-2009 EAp2:Minimum Energy Performance
posted by  Francesco Passerini  on 

For the baseline model relative to a building where a part is residential (4 floors) and another part nonresidential (ground floor), shall the envelope of the nonresidential part respect the U-valu

1
Tue Apr 10, 2018, 3:26 pm

Residential Lighting

NC-2009 EAp2:Minimum Energy Performance
posted by  Jorge Lopez de Obeso  on 

Hi Marcus, it seems that this is a real issue in this forum and I ended up more confused.

Help me get this thing right

First, lets clarify some basic concepts:

2
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Fri Apr 6, 2018, 5:38 pm
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Fri Apr 6, 2018, 5:30 pm

Service Hot Water - modeling the circulation pumps for this system

NC-2009 EAp2:Minimum Energy Performance
posted by  Vassil Vassilev  on 

Greetings,

Regarding modeling the Service Hot Water (SHW) for a project assigned to System 5, our approach was:

1
Mon Apr 2, 2018, 12:37 am

Baseline - System 5, no cooling

NC-2009 EAp2:Minimum Energy Performance
posted by  Zsolt Bako-Biro  on 

I have a 11000 sqm warehouse (3 units) 24/7 in operation with natural ventilation, no cooling designed or required, heated to 15°C. The OA requirement is met by the level of infiltration of 0.

6
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Fri Mar 16, 2018, 6:26 pm

DHW Flow

NC-2009 EAp2:Minimum Energy Performance
posted by  Jorge Lopez de Obeso  on 

Hi, I'm having a hard time trying to estimate my DHW Flow in the energy model for a residential project.

1
Fri Mar 16, 2018, 5:07 pm

Semi-Heated Space, fan volume & fan power must be modeled identically in baseline and proposed.

NC-2009 EAp2:Minimum Energy Performance
posted by  Dave Hubka  on 

Hello,

We received a review comment that states "the fan volume and fan power should be modeled identically in the proposed and baseline for semi-heated spaces".

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Mon Mar 5, 2018, 4:23 pm

Hotel HVAC (electric) and DHW (gas) systems

NC-2009 EAp2:Minimum Energy Performance
posted by  Ricardo Sá  on 

Am I right to assume in the baseline building:

4
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Tue Feb 27, 2018, 2:25 pm

District Energy System: Virtual Rates & Point Restriction Confusion

NC-2009 EAp2:Minimum Energy Performance
posted by  Luigi Festa  on 

I have a project that is using a district steam system; modeled under the streamlined path.

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Mon Feb 26, 2018, 5:54 pm