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Expand IDF bug with HVACTemplate:System:DedicatedOutdoorAir for Heat Recovery Type 'Enthalpy' (v24.2) #10895

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sbuck99 opened this issue Jan 14, 2025 · 1 comment · Fixed by #10904
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Expand IDF bug with HVACTemplate:System:DedicatedOutdoorAir for Heat Recovery Type 'Enthalpy' (v24.2) #10895

sbuck99 opened this issue Jan 14, 2025 · 1 comment · Fixed by #10904
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@jmarrec
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Defect Includes code to repair a defect in EnergyPlus

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sbuck99 commented Jan 14, 2025 •
edited by jmarrec
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Setting Heat Recovery Type to Enthalpy in the HVACTemplate:System:DedicatedOutdoorAir template yields an error with some configurations:

   ** Severe  ** Duplicate name found for object of type "Table:IndependentVariable" named "DOAS airFlowRatio". Overwriting existing object.
   ** Severe  ** Duplicate name found for object of type "Table:IndependentVariableList" named "DOAS effIndVarList". Overwriting existing object.
   ** Severe  ** Duplicate name found for object of type "Table:Lookup" named "DOAS SenEffectivenessTable". Overwriting existing object.

Reviewing the expidf and indeed duplicate tables are found.

Here is the object:

  HVACTemplate:System:DedicatedOutdoorAir,
    DOAS,                    !- Name
    Always On,                !- System Availability Schedule Name
    DirectIntoZone,          !- Air Outlet Type
    autosize,                !- Supply Fan Flow Rate {m3/s}
    0.7,                     !- Supply Fan Total Efficiency
    1000,                    !- Supply Fan Delta Pressure {Pa}
    0.9,                     !- Supply Fan Motor Efficiency
    1,                       !- Supply Fan Motor in Air Stream Fraction
    DrawThrough,             !- Supply Fan Placement
    HeatExchangerAssistedDX,            !- Cooling Coil Type
    ALWAYS OFF DOAS,                        !- Cooling Coil Availability Schedule Name
    FixedSetpoint,           !- Cooling Coil Setpoint Control Type
    12.8,                    !- Cooling Coil Design Setpoint {C}
    ,                        !- Cooling Coil Setpoint Schedule Name
    15.6,                    !- Cooling Coil Setpoint at Outdoor Dry-Bulb Low {C}
    15.6,                    !- Cooling Coil Reset Outdoor Dry-Bulb Low {C}
    12.8,                    !- Cooling Coil Setpoint at Outdoor Dry-Bulb High {C}
    23.3,                    !- Cooling Coil Reset Outdoor Dry-Bulb High {C}
    autosize,                !- DX Cooling Coil Gross Rated Total Capacity {W}
    autosize,                !- DX Cooling Coil Gross Rated Sensible Heat Ratio
    3,                       !- DX Cooling Coil Gross Rated COP {W/W}
    Electric,                !- Heating Coil Type
    ALWAYS OFF DOAS,                        !- Heating Coil Availability Schedule Name
    FixedSetpoint,           !- Heating Coil Setpoint Control Type
    12.2,                    !- Heating Coil Design Setpoint {C}
    ,                        !- Heating Coil Setpoint Schedule Name
    15,                      !- Heating Coil Setpoint at Outdoor Dry-Bulb Low {C}
    7.8,                     !- Heating Coil Reset Outdoor Dry-Bulb Low {C}
    12.2,                    !- Heating Coil Setpoint at Outdoor Dry-Bulb High {C}
    12.2,                    !- Heating Coil Reset Outdoor Dry-Bulb High {C}
    0.8,                     !- Gas Heating Coil Efficiency
    ,                        !- Gas Heating Coil Parasitic Electric Load {W}
    **Enthalpy,                !- Heat Recovery Type**
    0.7,                     !- Heat Recovery Sensible Effectiveness
    0.65,                    !- Heat Recovery Latent Effectiveness
    Plate,                   !- Heat Recovery Heat Exchanger Type
    MinimumExhaustTemperature,  !- Heat Recovery Frost Control Type
    None,                    !- Dehumidification Control Type
    0.00924,                 !- Dehumidification Setpoint {kgWater/kgDryAir}
    None,                    !- Humidifier Type
    ,                        !- Humidifier Availability Schedule Name
    0.000001,                !- Humidifier Rated Capacity {m3/s}
    2690,                    !- Humidifier Rated Electric Power {W}
    0.003,                   !- Humidifier Constant Setpoint {kgWater/kgDryAir}
    ,                        !- Dehumidification Setpoint Schedule Name
    ;                        !- Humidifier Setpoint Schedule Name

Setting the Heat Recovery Type to 'None' makes the error go away.

File is attached for reproducibility of bug (single zone example).

DOAS_error.idf.txt
@jmarrec jmarrec self-assigned this Jan 21, 2025
@jmarrec jmarrec added the Defect Includes code to repair a defect in EnergyPlus label Jan 21, 2025
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jmarrec commented Jan 21, 2025

@sbuck99 Thank you for the defect file attached, it's always nice when it's as small as possible!

jmarrec added a commit to jmarrec/EnergyPlus that referenced this issue Jan 21, 2025
@jmarrec
Add failing ExpandObjects file for NREL#10895
92486d0
jmarrec added a commit to jmarrec/EnergyPlus that referenced this issue Jan 21, 2025
@jmarrec
Fix NREL#10895 - Use unique TableLookup names to avoid duplicates
3464e99
jmarrec added a commit to jmarrec/EnergyPlus that referenced this issue Jan 23, 2025
@jmarrec
Add failing ExpandObjects file for NREL#10895
1bd4f1b 
```bash
$ ninja && ctest -R TwoHX
test 800
    Start 800: integration.HVACTemplate-5ZonePTAC-DOAS-TwoHX

800: Test command: /usr/bin/cmake "-DSOURCE_DIR=/media/DataExt4/Software/Others/EnergyPlus" "-DBINARY_DIR=/media/DataExt4/Software/Others/EnergyPlus-build-release" "-DENERGYPLUS_EXE=/media/DataExt4/Software/Others/EnergyPlus-build-release/Products/energyplus-25.1.0" "-DIDF_FILE=HVACTemplate-5ZonePTAC-DOAS-TwoHX.idf" "-DEPW_FILE=USA_IL_Chicago-OHare.Intl.AP.725300_TMY3.epw" "-DENERGYPLUS_FLAGS=-x -D -r" "-DBUILD_FORTRAN=ON" "-DTEST_FILE_FOLDER=testfiles" "-DRUN_CALLGRIND:BOOL=FALSE" "-DVALGRIND=" "-DRUN_PERF_STAT:BOOL=FALSE" "-DPERF=" "-P" "/media/DataExt4/Software/Others/EnergyPlus/cmake/RunSimulation.cmake"
800: Working Directory: /media/DataExt4/Software/Others/EnergyPlus-build-release/testfiles
800: Test timeout computed to be: 10000000
800: ExpandObjects Started.
800:  Begin reading Energy+.idd file.
800:  Done reading Energy+.idd file.
800: ExpandObjects Finished with Error(s). Time:     0.046
800: EnergyPlus Starting
800: EnergyPlus, Version 25.1.0-92486d0f1f, YMD=2025.01.23 10:15
800: **FATAL:Errors occurred on processing input file. Preceding condition(s) cause termination.
800: EnergyPlus Run Time=00hr 00min  0.09sec
800: Program terminated: EnergyPlus Terminated--Error(s) Detected.
800: Test Failed
1/1 Test NREL#800: integration.HVACTemplate-5ZonePTAC-DOAS-TwoHX ...***Failed  Error regular expression found in output. Regex=[Test Failed]  0.43 sec

0% tests passed, 1 tests failed out of 1

Total Test time (real) =   0.53 sec

The following tests FAILED:
	800 - integration.HVACTemplate-5ZonePTAC-DOAS-TwoHX (Failed)

$ cat testfiles/HVACTemplate-5ZonePTAC-DOAS-TwoHX/eplusout.err 
Program Version,EnergyPlus, Version 25.1.0-92486d0f1f, YMD=2025.01.23 10:15,
   ** Severe  ** Duplicate name found for object of type "Table:IndependentVariable" named "DOAS airFlowRatio". Overwriting existing object.
   ** Severe  ** Duplicate name found for object of type "Table:IndependentVariableList" named "DOAS effIndVarList". Overwriting existing object.
   ** Severe  ** Duplicate name found for object of type "Table:Lookup" named "DOAS SenEffectivenessTable". Overwriting existing object.
   **  Fatal  ** Errors occurred on processing input file. Preceding condition(s) cause termination.
   ...Summary of Errors that led to program termination:
   ..... Reference severe error count=3
   ..... Last severe error=Duplicate name found for object of type "Table:Lookup" named "DOAS SenEffectivenessTable". Overwriting existing object.
   ************* Warning:  Node connection errors not checked - most system input has not been read (see previous warning).
   ************* Fatal error -- final processing.  Program exited before simulations began.  See previous error messages.
   ************* EnergyPlus Warmup Error Summary. During Warmup: 0 Warning; 0 Severe Errors.
   ************* EnergyPlus Sizing Error Summary. During Sizing: 0 Warning; 0 Severe Errors.
   ************* EnergyPlus Terminated--Fatal Error Detected. 0 Warning; 3 Severe Errors; Elapsed Time=00hr 00min  0.09sec
```
@jmarrec jmarrec mentioned this issue Jan 23, 2025
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mjwitte added a commit that referenced this issue Jan 24, 2025
@mjwitte
Merge pull request #10904 from NREL/10895_HVACTemplateSystemDedicated…
e64cf38 
…OutdoorAir_ExpandObjects

Fix #10895 - Expand IDF bug with HVACTemplate:System:DedicatedOutdoorAir for Heat Recovery Type 'Enthalpy'
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