[Equest-users] LEED review comments

[Michael Mantai]

If you have any DX units and have allowed crankcase heating (which is a
checkbox in the DD wizard if you used the wizard to set up HVAC equipment
initially), that will show up as aux.  energy.


On 6/15/10 1:27 PM, "Sam Mason" <sam.mason at atelierten.com> wrote:

> Heather,
> I hope your first EAc1 review doesn¹t discourage you and I understand reaching
> out for guidance.
>  
> 1.      It sounds like you did indeed model frames so I would just provide the
> additional information on the conductance of the frames and build a Window5
> model to determine the assembly U-value and include both for the reviewer.
> 
> 2.      While not the strangest comment I¹ve seen the GBCI, it is up there for
> random and your response seems okay. However, is the percentage of lighting
> end-use energy extremely high for the project or is there another reason they
> state for making this comment? Just be thorough in your response.
> 
> 3.      Pumps and auxiliary energy  includes at least three things: pumps,
> furnace pilot lights, and internal energy sources defined as a space load that
> use electricity or natural gas.  Without seeing your inp files, hard to say
> though.
> 
>  
> Good luck. It is hard to provide much more help without knowing more about the
> project but hopefully this will get you started.
>  
> Sam
> 
> --
> Sam Mason
> Atelier Ten
>  
> 
> From: equest-users-bounces at lists.onebuilding.org
> [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of
> Heather.Hardie-Hill at CH2M.com
> Sent: Tuesday, June 15, 2010 1:09 PM
> To: eQUEST-users at onebuilding.org
> Subject: [Equest-users] LEED review comments
>  
> 
> Hello eQuest Users!
> 
>     I realize that this is an eQuest users forum and not necessarily a LEED
> help forum but from reading past posts it sound like many of you have quite a
> few LEED projects under your belts and I could really use some advice/help. I
> just received my first EAc1 LEED review back and there are 16 comments. Is
> that normal? I want to make sure that I understand how eQuest is working for a
> few of these comments so that I can answer them completely and correctly.
> 
>  
> 
> so here are my review comment/questions:
> 1. "The Proposed windows were modeled with a U-value of 0.29, which does not
> appear to account for the impact of the window frames on the whole assembly as
> required by ASHRAE modeling protocol."
>> * The U-Value of 0.29 is indeed the center of glass U-Value however I
>> included frame conductance and frame width in the model.
>> * Is that enough to account for the "whole assembly" U-Value?
>> * or do I need to find a published whole assembly U-Value for the specified
>> window? 
>> * If I do need the whole assembly U-Value, then should I remove the frame
>> information from the model?
> 2. "Please confirm that the energy consumption attributed to ³Area Lights² on
> Table 1.8.1 and 1.8.2 represents internal lighting energy consumption and
> demand or provide a narrative describing any alternative uses."
>> * the area lights information came from the "Ambient Lights" column of the
>> Annual Enduse Summary... so I would say yes, it represents the lighting
>> energy consumption and demand. Right?
> 3. "Please provide a narrative to describe the end use for the modeled ³Pumps
> & Auxiliary² as shown on Table 1.8.1 and 1.8.2"
>> * I have not been able to figure out exactly what is contributing to this
>> load (besides the pumps of course). What, according to eQuest, is considered
>> "Auxiliary"? 
> I think that is it for now... I'm sure as I start making adjustments that I
> will have additional questions. (The building runs off of a central chiller
> plant so I've used the "Required Treatment of District Thermal Energy in
> LEED-NC version 2.2" document as a guideline and haven't quite wrapped my head
> around the comments related to that)
> 
>  
> 
> I know that one of the first things you might ask is to see my .inp and .pd2
> files... unfortunately it is for a confidential client and I am unable to
> share that information.
> 
>  
> 
> One more quick thing... Although I do not regularly contribute to the forum I
> try to read all of the threads as they come through (admittedly, I'm a little
> behind right now). It is comforting to know that I am not the only one having
> issues with energy modeling and eQuest. It is also comforting knowing that I
> can ask you questions and I don't have to bang my head against a wall trying
> to figure it all out on my own! so, thanks in advance for the help!!!!
> 
>  
> 
> Heather Hardie-Hill
> 
> EIT, LEEDTM AP
> 
>  
> 
> CH2M HILL
> 
> Industrial & Advanced Technologies
> 
> Portland, OR 97201
> 
> e: heather.hardie-hill at ch2m.com
> 
>  
> 
>  
> 
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