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
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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
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
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