[Equest-users] LEED review comments

[Pasha Korber-Gonzalez]

They also like screen shots that confirm your input values used.   Pretty
pictures always speak louder than words...


pkg

On Wed, Jun 16, 2010 at 9:10 AM, Rob Hudson <rdh4176 at gmail.com> wrote:

> For a few of our firms LEED models, we tabulated the lighting values for
> the baseline and the changes made for the proposed model when they were
> asking for more information.  In my experience, provide as much supporting
> documentation in the form of tables and lists as possible to eliminate any
> confusion with their template.
>
> -Rob Hudson
>
>
> On Wed, Jun 16, 2010 at 10:23 AM, Robby Oylear <robbyo at rushingco.com>wrote:
>
>>  Sam & Heather,
>>
>>
>>
>> Just a comment on #1, but according to ASHRAE 90.1-2004 section 5.8.2.4
>> (section 5.4.2, a mandatory provision, refers you to this section) the
>> U-factor of all fenestration shall be determined either by NFRC 100 or for
>> vertical fenestration taken from table A8.2.
>>
>>
>>
>> NFRC testing is essentially a requirement of ASHRAE 90.1-2004.  It is not
>> enough to take a center of glass value and add some framing to it, letting
>> eQUEST calculate your assembly U-value.
>>
>>
>>
>> Robby Oylear, LEED® AP
>>
>> *Mechanical Engineer*
>>
>> direct: 206.788.4571
>>
>> *cell: 206.354.2721*
>>
>> *www.*rushingco.com <http://www.rushingco.com/>
>>
>>
>> On 6/15/10 1:27 PM, "Sam Mason" <sam.mason at atelierten.com> wrote:
>>
>> Heather,
>> I hope your first EAc1 review doesn’t 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 I’ve 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<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 “Area
>>    Lights” 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
>>    “Pumps & Auxiliary” 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, LEED**TM** AP
>> *
>>
>>
>> *CH2M HILL
>> *
>> *Industrial & Advanced Technologies
>> *
>> Portland, OR 97201
>>
>> e: heather.hardie-hill at ch2m.com
>>
>>
>>
>>
>>
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>
>
> --
> Rob Hudson
>
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