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[EnergyPlus_Support] Re: Small School - Modelling Simple Heating and Ventilation Equipment
Hi
I changed the modelling solution for this building, to a two air loop
possibility using direct air. I corrected the issues discussed above,
tried a small period simulation (january month), but it resulted in
some severe errors. I looked at the issues suggested in the error
report but I don´t think the problem is related to these suggestions.
Could it be the HVAC system modelling? The errors are as follow:
Program Version,EnergyPlus 2.1.0.023, 11-02-2008 16:13,IDD_Version
2.1.0.023
************* Beginning Zone Sizing Calculations
** Warning ** Weather file location will be used rather than
entered Location object.
** ~~~ ** ..Location object=FAMALICAO
** ~~~ ** ..Weather File Location=PORTO - PRT IWEC DATA WMO#=085450
** Warning ** Calculated design cooling load for zone=EDÍFICIO -
SALA AULA 3 is zero.
** ~~~ ** Check ZONE SIZING and ZONE CONTROL:THERMOSTATIC inputs.
** Warning ** Calculated design cooling load for zone=EDÍFICIO -
SALA EDUCADOR is zero.
** ~~~ ** Check ZONE SIZING and ZONE CONTROL:THERMOSTATIC inputs.
** Warning ** Calculated design cooling load for zone=EDÍFICIO -
SALA AULA 2 is zero.
** ~~~ ** Check ZONE SIZING and ZONE CONTROL:THERMOSTATIC inputs.
** Warning ** Calculated design cooling load for zone=EDÍFICIO -
SALA AULA 1 is zero.
** ~~~ ** Check ZONE SIZING and ZONE CONTROL:THERMOSTATIC inputs.
************* Beginning System Sizing Calculations
** Warning ** Calculated cooling design air flow rate for
system=AIR LOOP2 is zero.
** ~~~ ** Check ZONE SIZING and ZONE CONTROL:THERMOSTATIC inputs.
** Warning ** Calculated cooling design air flow rate for
system=AIR LOOP1 is zero.
** ~~~ ** Check ZONE SIZING and ZONE CONTROL:THERMOSTATIC inputs.
************* Beginning Plant Sizing Calculations
************* Testing Individual Branch Integrity
************* All Branches passed integrity testing
************* Testing Individual Supply Air Path Integrity
************* All Supply Air Paths passed integrity testing
************* Testing Individual Return Air Path Integrity
************* All Return Air Paths passed integrity testing
************* No node connection errors were found.
** Warning ** Inside surface heat balance did not converge with Max
Temp Difference [C] =2.493E-003 vs Max Allowed Temp Diff [C] =2.000E-003
** ~~~ ** Occurrence info=PORTO - PRT IWEC DATA WMO#=085450,
01/03 14:30 - 14:31
** Warning ** Inside surface heat balance did not converge with Max
Temp Difference [C] =9.556E-003 vs Max Allowed Temp Diff [C] =2.000E-003
** ~~~ ** Occurrence info=PORTO - PRT IWEC DATA WMO#=085450,
01/03 14:45 - 14:46
** Warning ** Inside surface heat balance did not converge with Max
Temp Difference [C] =9.928E-002 vs Max Allowed Temp Diff [C] =2.000E-003
** ~~~ ** Occurrence info=PORTO - PRT IWEC DATA WMO#=085450,
01/03 15:00 - 15:01
** Warning ** Inside surface heat balance did not converge with Max
Temp Difference [C] =0.824 vs Max Allowed Temp Diff [C] =2.000E-003
** ~~~ ** Occurrence info=PORTO - PRT IWEC DATA WMO#=085450,
01/03 15:15 - 15:16
** Warning ** Inside surface heat balance did not converge with Max
Temp Difference [C] =246.544 vs Max Allowed Temp Diff [C] =2.000E-003
** ~~~ ** Occurrence info=PORTO - PRT IWEC DATA WMO#=085450,
01/03 15:30 - 15:31
** Warning ** Temperature out of range [-100. to 200.] (PsyPsatFnTemp)
** ~~~ ** CorrectZoneHumRat Occurrence info=PORTO - PRT IWEC
DATA WMO#=085450, 01/03 15:16 - 15:17
** ~~~ ** Input Temperature=200.06
** Warning ** Temperature out of range [-100. to 200.] (PsyPsatFnTemp)
** ~~~ ** CorrectZoneAirTemp Occurrence info=PORTO - PRT IWEC
DATA WMO#=085450, 01/03 15:16 - 15:17
** ~~~ ** Input Temperature=200.06
** Warning ** Temperature out of range [-100. to 200.] (PsyPsatFnTemp)
** ~~~ ** CorrectZoneHumRat Occurrence info=PORTO - PRT IWEC
DATA WMO#=085450, 01/03 15:17 - 15:18
** ~~~ ** Input Temperature=200.34
** Warning ** Temperature out of range [-100. to 200.] (PsyPsatFnTemp)
** ~~~ ** CorrectZoneAirTemp Occurrence info=PORTO - PRT IWEC
DATA WMO#=085450, 01/03 15:17 - 15:18
** ~~~ ** Input Temperature=200.34
** Warning ** Temperature out of range [-100. to 200.] (PsyPsatFnTemp)
** ~~~ ** CorrectZoneHumRat Occurrence info=PORTO - PRT IWEC
DATA WMO#=085450, 01/03 15:17 - 15:18
** ~~~ ** Input Temperature=200.27
** Warning ** Temperature out of range [-100. to 200.] (PsyPsatFnTemp)
** ~~~ ** CorrectZoneAirTemp Occurrence info=PORTO - PRT IWEC
DATA WMO#=085450, 01/03 15:17 - 15:18
** ~~~ ** Input Temperature=200.27
** Warning ** Inside surface heat balance did not converge with Max
Temp Difference [C] =264.266 vs Max Allowed Temp Diff [C] =2.000E-003
** ~~~ ** Occurrence info=PORTO - PRT IWEC DATA WMO#=085450,
01/03 15:45 - 15:46
** Severe ** Temperature out of bounds (-102.22) for surface=R_
EDÍFICIO - SALA AULA 3_1_0_0
** ~~~ ** in Zone=EDÍFICIO - SALA AULA 3
** ~~~ ** Occurrence info=PORTO - PRT IWEC DATA WMO#=085450,
01/03 16:00 - 16:01
** ~~~ ** A temperature out of bounds problem can be caused by
several things. The user
** ~~~ ** should check the weather environment, the level of
internal gains with respect
** ~~~ ** to the zone, and the thermal properties of their
materials among other things.
** ~~~ ** A common cause is a building with no thermal mass --
all materials with
** ~~~ ** Regular-R definitions.
** Fatal ** EnergyPlus has exited due to the reason stated above
...Summary of Errors that led to program termination:
..... Reference severe error count=1
..... Last severe error=Temperature out of bounds (-102.22) for
surface=R_ EDÍFICIO - SALA AULA 3_1_0_0
************* EnergyPlus Terminated--Fatal Error Detected. 19
Warning; 1 Severe Errors; Elapsed Time=00hr 00min 7.17sec
I´m uploanding the file so that you can have a look at it.
Thanks for the help
Nuno Brandão
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