[Equest-users] eQUEST building skin effects in cooling but notheating
Karen Walkerman
kwalkerman at gmail.com
Thu Dec 4 10:09:55 PST 2008
If you have a cooling design day specified, but no heating design day
specified, then the design day report will only give you cooling design, and
not heating design. The program default design days should include both.
--
Karen
On Thu, Dec 4, 2008 at 11:51 AM, <Gary.Schrader at tac.com> wrote:
> Brian,
>
> You have a significant amount of light and occupant load in your building.
> Are you using a heating design day? Does that design day call for a heating
> design day schedule? Does that heating design day schedule shut down the
> lights/occupants during the course of the day such that no light/occupant
> load is contributed to the space during the heating season?
>
> My prediction is that your lights/occupants/etc. are still scheduled during
> the winter months and thus your building doesn't NEED heat. Check your
> schedules to ensure that the above items are "off" during the winter months
> such that the room isn't heating itself.
>
> Another way to prove this would be to run an hourly report and check to see
> if your cooling coil(s) is/are in use during all days of the year.
>
> Just an idea of where to start.
>
> Thanks,
> *Gary Schrader
> *Engineer I
>
> *TAC
> *16011 College Blvd, Suite 212
> Lenexa, KS 66219
>
> Direct: +1 Fax: +1 913-469-0206 Mobile: +1 913-217-8068 Email:
> Gary.Schrader at tac.com Web: www.tac.com
> Notice: This email message, together with any attachments, contains
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> and/or legally privileged. This email is intended solely for the use of the
> individual or entity named on the message. If you are not the intended
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>
>
> ------------------------------
> *From:* equest-users-bounces at lists.onebuilding.org [mailto:
> equest-users-bounces at lists.onebuilding.org] *On Behalf Of *Brian Davis
> *Sent:* Thursday, December 04, 2008 10:44 AM
> *To:* equest-users at lists.onebuilding.org
> *Subject:* [Equest-users] eQUEST building skin effects in cooling but
> notheating
>
> I am using the refrigeration version of equest 3.61 and have several
> zones within the building which have exterior walls and roof. The equest
> output notes loads in cooling for them but not in heating while other zones
> properly indicate loads for both cooling and heating, has anyone else run
> across this and can suggest something for me to check. The output is listed
> below.
>
>
>
>
>
>
>
> REPORT- LS-B Space Peak Load Components EL1 NNE Perim Spc
> (G.NNE16) WEATHER FILE- Baltimore MD TMY2
>
>
> ---------------------------------------------------------------------------------------------------------------------------------
>
>
>
> SPACE EL1 NNE Perim Spc (G.NNE16)
>
> SPACE TEMPERATURE USED FOR THE LOADS CALCULATION IS 70 F / 21 C
>
>
>
>
>
> MULTIPLIER 1.0 FLOOR MULTIPLIER
> 1.0
>
>
>
> FLOOR AREA 28544 SQFT 2652 M2
>
> VOLUME 513785 CUFT 14550 M3
>
>
>
>
>
> COOLING
> LOAD HEATING LOAD
>
>
> ========================== ==========================
>
> TIME AUG 3
> 7PM
>
>
>
> DRY-BULB TEMP 93 F 34 C
>
> WET-BULB TEMP 76 F 24 C
>
> TOT HORIZONTAL SOLAR RAD 80 BTU/H.SQFT 252 W/M2
>
> WINDSPEED AT SPACE 5.3 KTS 2.7 M/S
>
> CLOUD AMOUNT 0(CLEAR)-10 0
>
>
>
>
>
>
>
> SENSIBLE
> LATENT SENSIBLE
>
> (KBTU/H) ( KW ) (KBTU/H) ( KW
> ) (KBTU/H) ( KW )
>
> -------- ------ --------
> ------ -------- --------
>
>
>
> WALL CONDUCTION 4.394 1.287 0.000
> 0.000 0.000 0.000
>
> ROOF CONDUCTION 28.204 8.264 0.000
> 0.000 0.000 0.000
>
> WINDOW GLASS+FRM COND 0.000 0.000 0.000
> 0.000 0.000 0.000
>
> WINDOW GLASS SOLAR 0.000 0.000 0.000
> 0.000 0.000 0.000
>
> DOOR CONDUCTION 0.000 0.000 0.000
> 0.000 0.000 0.000
>
> INTERNAL SURFACE COND 0.000 0.000 0.000
> 0.000 0.000 0.000
>
> UNDERGROUND SURF COND -0.666 -0.195 0.000
> 0.000 0.000 0.000
>
> OCCUPANTS TO SPACE 18.451 5.406 15.444
> 4.525 0.000 0.000
>
> LIGHT TO SPACE 144.060 42.209 0.000
> 0.000 0.000 0.000
>
> EQUIPMENT TO SPACE 0.000 0.000 0.000
> 0.000 0.000 0.000
>
> PROCESS TO SPACE 0.000 0.000 0.000
> 0.000 0.000 0.000
>
> INFILTRATION 1.692 0.496 2.090
> 0.612 0.000 0.000
>
> -------- ------- -------
> ------ -------- --------
>
> TOTAL 196.134 57.467 17.534
> 5.137 0.000 0.000
>
> TOTAL / AREA 0.007 0.022 0.001
> 0.002 0.000 0.000
>
>
>
> TOTAL LOAD 213.669 KBTU/H 62.605
> KW 0.000 KBTU/H 0.000 KW
>
> TOTAL LOAD / AREA 7.49 BTU/H.SQFT 23.609
> W/M2 0.000 BTU/H.SQFT 0.000 W/M2
>
>
>
>
>
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