[Equest-users] Equest-users Digest, Vol 37, Issue 23

[yashika agarwalla]

Dear Users,
Do you have any way in which edited weather data can be converted back into
NCDC fomat so that the doe processor can be run to convert it to .bin
formnat ? Please help .!!

Yashika

On Sun, Apr 24, 2011 at 2:02 AM, <equest-users-request at lists.onebuilding.org
> wrote:

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> Today's Topics:
>
>   1. Re: Chillers in Series inputs (Anthony Hardman)
>   2. The DES Dilemma (Arpan Bakshi)
>   3. Help Wanted (Darren Smith)
>   4. Re: The DES Dilemma (Kelsey VanTassel)
>   5. Re: The DES Dilemma (Arpan Bakshi)
>   6. method to input the window overhangs (kirti pabrekar)
>   7. Parametric runs in EQuest (Jaya Mukhopadhyay)
>   8. Re: Chillers in Series inputs (Pasha Korber-Gonzalez)
>
>
> ---------- Forwarded message ----------
> From: "Anthony Hardman" <Anthony at GreenEngineer.com>
> To: "'Pasha Korber-Gonzalez'" <pasha.pkconsulting at gmail.com>
> Date: Fri, 22 Apr 2011 14:55:02 -0600
> Subject: Re: [Equest-users] Chillers in Series inputs
> The keyword “SERIES-SETPT-RAT“ to setup chillers in series is still listed
> as future in the help files.  Could that be why you’re running into
> trouble?
>
> * *
>
> *Anthony Hardman, PE*
>
> *LEED AP BD&C***
>
> Building Performance Analyst
>
>
>
> *THE GREEN ENGINEER, LLP***
>
> *Sustainable Design Consulting – Energy Modeling – LEED Project Management
> *
>
> 50 Beharrell St
>
> Concord, MA 01742
>
> O: 978/610-2801
>
> C: 720/840-7862
>
> www.GreenEngineer.com
>
> www.linkedin.com/in/ahardman81
>
> http://twitter.com/#!/a_Hardman
>
>
>
>
>
> *From:* equest-users-bounces at lists.onebuilding.org [mailto:
> equest-users-bounces at lists.onebuilding.org] *On Behalf Of *Pasha
> Korber-Gonzalez
> *Sent:* Friday, April 22, 2011 2:04 PM
> *To:* James Hansen
> *Cc:* eQUEST Users List; Arunabha Sau
> *Subject:* Re: [Equest-users] Chillers in Series inputs
>
>
>
> Thanks Rob & James for your prompt input to my dilemma....after I sent the
> email to the list, I went back in my plants to try and make sense why the
> secondary wasn't seeing a load--so for a random test I switched the
> assignement of the two chillers (just reversed which loops they are on.) and
> then ran the sim without errors.  That was the good news.   I don't have my
> head around the logic of why that worked on the first try, but maybe I was
> having some dislexia-input moments and spec'd my chiller conditions
> backwards (i.e. high chiller & low chiller in the series).
>
>
>
> Since it has ran I noticed an immediate reduction in chiller energy use,
> but I haven't yet verified if the reduction is realistic and if there are
> any other QC error type things to verify that this approach is indeed
> modeling the chiller temps in series.   I don't think I will mess with
> custom chiller curves at this point because this project model is only SD.
> Therefore I won't be held to any compliance reviews and strict performance
> results...at least not at this point in time.
>
>
>
> I'll try to send feedback when I can verify that this is a valid input
> option for chillers in series, or if it holds no water at all...
>
>
>
> Cheers,
>
> Pasha
>
> On Fri, Apr 22, 2011 at 12:18 PM, James Hansen <JHANSEN at ghtltd.com> wrote:
>
> Most manufacturers will give you a “single chiller” performance curve for
> the two chillers in series.  I typically just make custom chiller curves to
> represent series chillers as a single chiller.  If a designer creates
> valving that allows water to NOT have to flow through both chillers during
> low load operation, this gets a little tricky, and I end up averaging the
> delta P across the chillers to represent partial operation thru both
> chillers and partial operation thru a single chiller.  No easy way to do
> this.
>
>
>
> *GHT Limited
> **James Hansen, PE, LEED AP*
>
> *Senior Associate*
>
> 1010 N. Glebe Rd, Suite 200
>
> Arlington, VA  22201-4749
>
> 703-338-5754 (Cell)
>
> 703-243-1200 (Office)
>
> 703-276-1376 (Fax)
>
> www.ghtltd.com
>
> * *
>
>
>
> *From:* equest-users-bounces at lists.onebuilding.org [mailto:
> equest-users-bounces at lists.onebuilding.org] *On Behalf Of *Rob Hudson
> *Sent:* Friday, April 22, 2011 2:15 PM
> *To:* Pasha Korber-Gonzalez
> *Cc:* eQUEST Users List; Arunabha Sau
> *Subject:* Re: [Equest-users] Chillers in Series inputs
>
>
>
> I won't claim that this is correct whatsoever, but briefly looking at your
> set up, it is clear that the water isn't pulling extra load from the second
> chiller.  I think you may want to set up a single chiller because I don't
> see a way to get the water to go through both chillers.  You could also
> create your own custom curves so that you match the combined performance of
> the modeled chiller.
>
>
>
> Just a thought.
>
>
>
> Rob
>
> On Fri, Apr 22, 2011 at 1:55 PM, Pasha Korber-Gonzalez <
> pasha.pkconsulting at gmail.com> wrote:
>
> Hi,
>
>
>
> I could use some guidance to make sure I'm assuming the correct inputs to
> set up chillers in series.  This is the first time I'm trying to model this
> and I have it set up with a primary & secondary loop for a total delta T of
> 16 across 2 chillers.    I'm getting a run error of the secondary loop
> having NO DESIGN FLOW/LOAD, but I'm not sure how to show that load on the
> secondary loop.....maybe I have the chillers listed backwards???
>
>
>
> Can anyone take a quick look at the setup in the Plant Module and let me
> know what I am missing on this?  I couldn't find any info on chillers in
> series in the DOE-2 docs to guide me on the correct inputs and setup.
>
>
>
> .pd2 & inp files attached.
>
>
>
> Thanks in advance for your keen eye and guidance on my model.
>
>
>
> Pasha
>
>
> _______________________________________________
> Equest-users mailing list
> http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org
> To unsubscribe from this mailing list send  a blank message to
> EQUEST-USERS-UNSUBSCRIBE at ONEBUILDING.ORG
>
>
>
>
> --
> Rob Hudson
>
>
>
>
> ---------- Forwarded message ----------
> From: Arpan Bakshi <arpanbakshi at gmail.com>
> To: equest-users <equest-users at lists.onebuilding.org>
> Date: Fri, 22 Apr 2011 17:00:46 -0400
> Subject: [Equest-users] The DES Dilemma
>
> PROJECT BACKGROUND
>
> *Building Area*
> Less than 25,000 SF
>
> *Proposed Design*
> TDV, DOAS, Supplemental Radiant Heating/Cooling
>
> *Heating and Cooling Generation*
> University District Heating and Cooling
>
> *
> *THE DES DILEMMA
> Reference – Treatment of District or Campus Thermal Energy in LEED V2 and
> LEED 2009 – Design & Construction
>
>
> *Option 1 (Building stand-alone scenario)
> *
> The downstream equipment of both baseline and proposed models cannot be
> easily isolated by tying chilled and heating hot water loops to meters since
> the baseline building is System 3, and does not use water-side systems. Neither
> can proposed model systems be replaced by “4-pipe CV AHU” per DES Table 3
> (is that a typo?) since the downstream radiant systems need a water-side
> source of heating and cooling in the model.
>
>
> *Option 2 (Model for Aggregate Building / DES Scenario)*
>
> This option has a points floor of 6 for LEED NC v2009. We do not anticipate
> a maximum of 1-3 points due to envelope design inefficiencies. Therefore
> this project would not qualify for Option 2.
>
> ANY THOUGHTS?
>
> I’m tempted to model System 7 heating and cooling plants for both baseline
> and proposed models and call it even, cost-neutral. What would you suggest?
> --
>
> *
> *
> *
>
> Arpan Bakshi  LEED AP BD+C
> *
>
>
>
> ---------- Forwarded message ----------
> From: Darren Smith <dsmith at willdan.com>
> To: "'equest-users at lists.onebuilding.org'" <
> equest-users at lists.onebuilding.org>
> Date: Fri, 22 Apr 2011 14:24:34 -0700
> Subject: [Equest-users] Help Wanted
>
> We have an immediate need for experienced eQuest 3.6x modelers.  Our focus
> is on existing buildings and finding energy saving opportunities.  We offer
> competitive salaries and a lower stress level than most design firms.
> Creativity in finding energy efficiency measures is encouraged.  If you are
> interested in a full time position at one of our two California offices,
> Monrovia and Dublin, please contact Laura Cadena or myself.
>
>
>
> *Darren Smith, P.E., LEED AP*
> Senior Engineer
>
> [image: Willdan-logo]**
>
> *Willdan Energy Solutions*
>
> 101 East Huntington Drive, Suite 110
>
> Monrovia, California 91016
> T. 626.256.0526 & x1747
>
> Direct. 626.305.6947
>
> F. 626.256.0525
>
> Email: dsmith at willdan.com <cnzewi at willdan.com>
>
> www.willdan.com
>
>
>
>
> ---------- Forwarded message ----------
> From: Kelsey VanTassel <KVanTassel at sustaineng.com>
> To: Arpan Bakshi <arpanbakshi at gmail.com>, equest-users <
> equest-users at lists.onebuilding.org>
> Date: Fri, 22 Apr 2011 17:30:51 -0500
> Subject: Re: [Equest-users] The DES Dilemma
>
> I don’t understand. Why can’t you follow Option 1?
>
> Without DES, your baseline system would normally be System 3—PSZ w/furnace
> and DX, right? Since your proposed design uses district heating and cooling,
> the baseline System 3 is changed to 4-pipe CV AHU. The DES procedure does
> not change your proposed systems.
>
> *Kelsey Van Tassel***
>
> Mechanical Engineer | kvantassel at sustaineng.com
>
> 608.836.4488 ext. 20 | Fax: 608.836.4477
>
>
>
> Sustainable Engineering Group
>
> 901 Deming Way, Suite 201
>
> Madison, WI 53717
>
> www.sustaineng.com
>
>
>
>
>
> *From:* equest-users-bounces at lists.onebuilding.org [mailto:
> equest-users-bounces at lists.onebuilding.org] *On Behalf Of *Arpan Bakshi
> *Sent:* Friday, April 22, 2011 4:01 PM
> *To:* equest-users
> *Subject:* [Equest-users] The DES Dilemma
>
>
>
> PROJECT BACKGROUND
>
> *Building Area*
> Less than 25,000 SF
>
> *Proposed Design*
> TDV, DOAS, Supplemental Radiant Heating/Cooling
>
> *Heating and Cooling Generation*
> University District Heating and Cooling
>
> *
> *THE DES DILEMMA
> Reference – Treatment of District or Campus Thermal Energy in LEED V2 and
> LEED 2009 – Design & Construction
>
>
> *Option 1 (Building stand-alone scenario)
> *
> The downstream equipment of both baseline and proposed models cannot be
> easily isolated by tying chilled and heating hot water loops to meters since
> the baseline building is System 3, and does not use water-side systems. Neither
> can proposed model systems be replaced by “4-pipe CV AHU” per DES Table 3
> (is that a typo?) since the downstream radiant systems need a water-side
> source of heating and cooling in the model.
>
>
> *Option 2 (Model for Aggregate Building / DES Scenario)*
>
> This option has a points floor of 6 for LEED NC v2009. We do not anticipate
> a maximum of 1-3 points due to envelope design inefficiencies. Therefore
> this project would not qualify for Option 2.
>
> ANY THOUGHTS?
>
> I’m tempted to model System 7 heating and cooling plants for both baseline
> and proposed models and call it even, cost-neutral. What would you suggest?
>
> --
>
>
>
>
>
> *Arpan Bakshi**  *LEED AP BD+C**
>
>
>
>
> ---------- Forwarded message ----------
> From: Arpan Bakshi <arpanbakshi at gmail.com>
> To: Kelsey VanTassel <KVanTassel at sustaineng.com>
> Date: Fri, 22 Apr 2011 20:18:08 -0400
> Subject: Re: [Equest-users] The DES Dilemma
> According to Table 3 the proposed system changes to 4-pipe CV AHU for a
> System 3 baseline if the project has both district heating and cooling, which
> would not work w/ taking credit for the downstream HVAC strategies in the
> proposed building.
>
>
>
> Arpan Bakshi, LEED AP BD+C
> YRG sustainability
>
> On Apr 22, 2011, at 6:30 PM, Kelsey VanTassel <KVanTassel at sustaineng.com>
> wrote:
>
> I don’t understand. Why can’t you follow Option 1?
>
> Without DES, your baseline system would normally be System 3—PSZ w/furnace
> and DX, right? Since your proposed design uses district heating and cooling,
> the baseline System 3 is changed to 4-pipe CV AHU. The DES procedure does
> not change your proposed systems.
>
> *Kelsey Van Tassel***
>
> Mechanical Engineer | kvantassel at sustaineng.com
>
> 608.836.4488 ext. 20 | Fax: 608.836.4477
>
>
>
> Sustainable Engineering Group
>
> 901 Deming Way, Suite 201
>
> Madison, WI 53717
>
> www.sustaineng.com
>
>
>
>
>
> *From:* equest-users-bounces at lists.onebuilding.org [mailto:
> equest-users-bounces at lists.onebuilding.org] *On Behalf Of *Arpan Bakshi
> *Sent:* Friday, April 22, 2011 4:01 PM
> *To:* equest-users
> *Subject:* [Equest-users] The DES Dilemma
>
>
>
> PROJECT BACKGROUND
>
> *Building Area*
> Less than 25,000 SF
>
> *Proposed Design*
> TDV, DOAS, Supplemental Radiant Heating/Cooling
>
> *Heating and Cooling Generation*
> University District Heating and Cooling
>
> *
> *THE DES DILEMMA
> Reference – Treatment of District or Campus Thermal Energy in LEED V2 and
> LEED 2009 – Design & Construction
>
>
> *Option 1 (Building stand-alone scenario)
> *
> The downstream equipment of both baseline and proposed models cannot be
> easily isolated by tying chilled and heating hot water loops to meters since
> the baseline building is System 3, and does not use water-side systems. Neither
> can proposed model systems be replaced by “4-pipe CV AHU” per DES Table 3
> (is that a typo?) since the downstream radiant systems need a water-side
> source of heating and cooling in the model.
>
>
> *Option 2 (Model for Aggregate Building / DES Scenario)*
>
> This option has a points floor of 6 for LEED NC v2009. We do not anticipate
> a maximum of 1-3 points due to envelope design inefficiencies. Therefore
> this project would not qualify for Option 2.
>
> ANY THOUGHTS?
>
> I’m tempted to model System 7 heating and cooling plants for both baseline
> and proposed models and call it even, cost-neutral. What would you suggest?
>
> --
>
>
>
>
>
> *Arpan Bakshi**  *LEED AP BD+C**
>
>
>
>
>
> ---------- Forwarded message ----------
> From: kirti pabrekar <arkirtipabrekar at gmail.com>
> To: equest-users-request at lists.onebuilding.org,
> equest-users at lists.onebuilding.org
> Date: Sat, 23 Apr 2011 21:02:53 +0530
> Subject: [Equest-users] method to input the window overhangs
>
> Hi fellow equesters,
>
>
> Is there any significance of the way of assigning overhangs and vertical
> fins to the windows in eQUEST?
>
>
> In a project of mine, I have horizontal projections that are very deep and
> continous on the façade. For ease of assigning overhangs, I put the OA value
> and the corresponding OW value to only one window. The 3D model looks as the
> real building would look. However the simulation results show difference
> when I assign the OA and OW values respectively to each window on that
> façade. In this case too, the 3D model looks same as the one before. Also
> while assigning the overhangs to the window, we do not provide the material
> specifications to them. Is there any way we can assign the materials to the
> overhangs of the window or does it have any significance to our simulation
> results. I feel, in this case, there shall be significant amount of radiant
> heat generated due to these deep overhangs, I would like to know, does
> eQUEST consider the radiant heat and its impact on the space cooling loads.
>
>
> Secondly, does eQUEST consider the impact of solar radiation on the height
> of the building? If we apply floor multipliers to the model through the
> wizard mode, we see the 3D that is a direct understanding of the building
> height. However, when floor multipliers are applied as a parametric run to
> the simulation, the results do not seem to match. I have assured that the
> other related input parameters are same in both the cases. Any takes on
> this?
>
>
> Any help / suggestion is deeply appreciated.
>
>
> Thank you.
>
>
> --
> Regards,
> Ar. Kirti Pramod Pabrekar.
> IGBC AP, LEED India,
> M. Arch,
> Environmental Planning and Design.
>
> *...Green is a commitment...not a competition...*
>
>
>
> ---------- Forwarded message ----------
> From: Jaya Mukhopadhyay <jaya_mukho at yahoo.com>
> To: equest-users at lists.onebuilding.org
> Date: Sat, 23 Apr 2011 10:15:25 -0700 (PDT)
> Subject: [Equest-users] Parametric runs in EQuest
> I have made 12 parametric runs in EQuest-Refrigeration. The program crashes
> after the 3rd run, although the run doesnt crash when executed individually.
> I have to do 90 such runs so the parametric option (if it works) would be
> extremely convenient.
> Can anybody advise me as to what to do?
> Thanks
> Jaya
>
>
> ---------- Forwarded message ----------
> From: Pasha Korber-Gonzalez <pasha.pkconsulting at gmail.com>
> To: Anthony Hardman <Anthony at greenengineer.com>
> Date: Sat, 23 Apr 2011 11:28:14 -0600
> Subject: Re: [Equest-users] Chillers in Series inputs
> Hmmmm---I wasn't aware or didn't see this specifically myself----  can you
> show me a screen shot where you are seeing this in eQuest?
> I will have to dig deeper....
>
>
> Thanks,
> Pasha
>
> On Fri, Apr 22, 2011 at 2:55 PM, Anthony Hardman <
> Anthony at greenengineer.com> wrote:
>
>>  The keyword “SERIES-SETPT-RAT“ to setup chillers in series is still
>> listed as future in the help files.  Could that be why you’re running
>> into trouble?
>>
>> * *
>>
>> *Anthony Hardman, PE*
>>
>> *LEED AP BD&C***
>>
>> Building Performance Analyst
>>
>>
>>
>> *THE GREEN ENGINEER, LLP***
>>
>> *Sustainable Design Consulting – Energy Modeling – LEED Project
>> Management *
>>
>> 50 Beharrell St
>>
>> Concord, MA 01742
>>
>> O: 978/610-2801
>>
>> C: 720/840-7862
>>
>> www.GreenEngineer.com <http://www.greenengineer.com/>
>>
>> www.linkedin.com/in/ahardman81
>>
>> http://twitter.com/#!/a_Hardman
>>
>>
>>
>>
>>
>> *From:* equest-users-bounces at lists.onebuilding.org [mailto:
>> equest-users-bounces at lists.onebuilding.org] *On Behalf Of *Pasha
>> Korber-Gonzalez
>> *Sent:* Friday, April 22, 2011 2:04 PM
>> *To:* James Hansen
>>
>> *Cc:* eQUEST Users List; Arunabha Sau
>> *Subject:* Re: [Equest-users] Chillers in Series inputs
>>
>>
>>
>> Thanks Rob & James for your prompt input to my dilemma....after I sent the
>> email to the list, I went back in my plants to try and make sense why the
>> secondary wasn't seeing a load--so for a random test I switched the
>> assignement of the two chillers (just reversed which loops they are on.) and
>> then ran the sim without errors.  That was the good news.   I don't have my
>> head around the logic of why that worked on the first try, but maybe I was
>> having some dislexia-input moments and spec'd my chiller conditions
>> backwards (i.e. high chiller & low chiller in the series).
>>
>>
>>
>> Since it has ran I noticed an immediate reduction in chiller energy use,
>> but I haven't yet verified if the reduction is realistic and if there are
>> any other QC error type things to verify that this approach is indeed
>> modeling the chiller temps in series.   I don't think I will mess with
>> custom chiller curves at this point because this project model is only SD.
>> Therefore I won't be held to any compliance reviews and strict performance
>> results...at least not at this point in time.
>>
>>
>>
>> I'll try to send feedback when I can verify that this is a valid input
>> option for chillers in series, or if it holds no water at all...
>>
>>
>>
>> Cheers,
>>
>> Pasha
>>
>> On Fri, Apr 22, 2011 at 12:18 PM, James Hansen <JHANSEN at ghtltd.com>
>> wrote:
>>
>> Most manufacturers will give you a “single chiller” performance curve for
>> the two chillers in series.  I typically just make custom chiller curves to
>> represent series chillers as a single chiller.  If a designer creates
>> valving that allows water to NOT have to flow through both chillers during
>> low load operation, this gets a little tricky, and I end up averaging the
>> delta P across the chillers to represent partial operation thru both
>> chillers and partial operation thru a single chiller.  No easy way to do
>> this.
>>
>>
>>
>> *GHT Limited
>> **James Hansen, PE, LEED AP*
>>
>> *Senior Associate*
>>
>> 1010 N. Glebe Rd, Suite 200
>>
>> Arlington, VA  22201-4749
>>
>> 703-338-5754 (Cell)
>>
>> 703-243-1200 (Office)
>>
>> 703-276-1376 (Fax)
>>
>> www.ghtltd.com
>>
>> * *
>>
>>
>>
>> *From:* equest-users-bounces at lists.onebuilding.org [mailto:
>> equest-users-bounces at lists.onebuilding.org] *On Behalf Of *Rob Hudson
>> *Sent:* Friday, April 22, 2011 2:15 PM
>> *To:* Pasha Korber-Gonzalez
>> *Cc:* eQUEST Users List; Arunabha Sau
>> *Subject:* Re: [Equest-users] Chillers in Series inputs
>>
>>
>>
>> I won't claim that this is correct whatsoever, but briefly looking at your
>> set up, it is clear that the water isn't pulling extra load from the second
>> chiller.  I think you may want to set up a single chiller because I don't
>> see a way to get the water to go through both chillers.  You could also
>> create your own custom curves so that you match the combined performance of
>> the modeled chiller.
>>
>>
>>
>> Just a thought.
>>
>>
>>
>> Rob
>>
>> On Fri, Apr 22, 2011 at 1:55 PM, Pasha Korber-Gonzalez <
>> pasha.pkconsulting at gmail.com> wrote:
>>
>> Hi,
>>
>>
>>
>> I could use some guidance to make sure I'm assuming the correct inputs to
>> set up chillers in series.  This is the first time I'm trying to model this
>> and I have it set up with a primary & secondary loop for a total delta T of
>> 16 across 2 chillers.    I'm getting a run error of the secondary loop
>> having NO DESIGN FLOW/LOAD, but I'm not sure how to show that load on the
>> secondary loop.....maybe I have the chillers listed backwards???
>>
>>
>>
>> Can anyone take a quick look at the setup in the Plant Module and let me
>> know what I am missing on this?  I couldn't find any info on chillers in
>> series in the DOE-2 docs to guide me on the correct inputs and setup.
>>
>>
>>
>> .pd2 & inp files attached.
>>
>>
>>
>> Thanks in advance for your keen eye and guidance on my model.
>>
>>
>>
>> Pasha
>>
>>
>> _______________________________________________
>> Equest-users mailing list
>> http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org
>> To unsubscribe from this mailing list send  a blank message to
>> EQUEST-USERS-UNSUBSCRIBE at ONEBUILDING.ORG
>>
>>
>>
>>
>> --
>> Rob Hudson
>>
>>
>>
>>
>
> _______________________________________________
> Equest-users mailing list
> Equest-users at lists.onebuilding.org
> http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org
>
>
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