NatLabRockies / NatLabRockies/OpenStudio-resources

zone_hvac (rb and osm) is Fataling out due to Plant runaway temps in 9.3.0 / 3.0.0

Open
#103 0 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

bug
Dominant language
HTML
Stars
29
Forks
17
Avg merge
4d 6h
Merged PRs (30d)
3

Description

   ** Warning ** GetSpecificHeatGlycol: Temperature is out of range (too high) for fluid [WATER] specific heat **
   **   ~~~   ** ..Called From:PlantLoopSolver::UpdateAnyLoopDemandAlterations,Temperature=[489.11], supplied data range=[0.00,125.00]
   **   ~~~   **  Environment=RUN PERIOD 1, at Simulation time=02/21 09:15 - 09:30
   ** Severe  ** Plant temperatures are getting far too hot, check controls and relative loads and capacities
   **   ~~~   **  Environment=RUN PERIOD 1, at Simulation time=02/21 09:15 - 09:30
   **   ~~~   ** PlantLoop Name (DemandSide)= CONDENSER WATER PLANT
   **   ~~~   ** PlantLoop Setpoint Temperature=24.0 {C}
   **   ~~~   ** PlantLoop Inlet Node (SupplySide) does not have a Setpoint.
   **   ~~~   ** PlantLoop Inlet Node (DemandSide) does not have a Setpoint.
   **   ~~~   ** PlantLoop Outlet Node (SupplySide) has a Setpoint.
   **   ~~~   ** PlantLoop Outlet Node (DemandSide) does not have a Setpoint.
   **   ~~~   ** PlantLoop Outlet Node (DemandSide) "NODE 31" has temperature=965.6 {C}
   **   ~~~   ** PlantLoop Inlet Node (DemandSide) "NODE 30" has temperature=12.5 {C}
   **   ~~~   ** PlantLoop Minimum Temperature=0.0 {C}
   **   ~~~   ** PlantLoop Maximum Temperature=100.0 {C}
   **   ~~~   ** PlantLoop Flow Request (SupplySide)=0.0 {kg/s}
   **   ~~~   ** PlantLoop Flow Request (DemandSide)=4.7E-005 {kg/s}
   **   ~~~   ** PlantLoop Node (DemandSide) "NODE 31" has mass flow rate =4.7E-005 {kg/s}
   **   ~~~   ** PlantLoop PumpHeat (SupplySide)=1.1E-002 {W}
   **   ~~~   ** PlantLoop PumpHeat (DemandSide)=0.0 {W}
   **   ~~~   ** PlantLoop Cooling Demand=0.0 {W}
   **   ~~~   ** PlantLoop Heating Demand=3.8 {W}
   **   ~~~   ** PlantLoop Demand not Dispatched=0.0 {W}
   **   ~~~   ** PlantLoop Unmet Demand=3.5 {W}
   **   ~~~   ** PlantLoop Capacity=95840.3 {W}
   **   ~~~   ** PlantLoop Capacity (SupplySide)=95840.3 {W}
   **   ~~~   ** PlantLoop Capacity (DemandSide)=0.0 {W}
   **   ~~~   ** PlantLoop Operation Scheme=CONDENSER WATER PLANT OPERATION SCHEMES
   **   ~~~   ** PlantLoop Operation Dispatched Load = 47821.1 {W}
   **   ~~~   ** PlantLoop Operation Dispatched Load (SupplySide)= 47821.1 {W}
   **   ~~~   ** PlantLoop Operation Dispatched Load (DemandSide)= 0.0 {W}
   **   ~~~   ** Branches on the Loop.
   **   ~~~   ** Demand Branches:
   **   ~~~   **   CONDENSER WATER PLANT DEMAND INLET BRANCH
   **   ~~~   **     Components on Branch:
   **   ~~~   **       PIPE:ADIABATIC:CONDENSER WATER PLANT DEMAND INLET PIPE
   **   ~~~   **   CONDENSER WATER PLANT DEMAND BRANCH 1
   **   ~~~   **     Components on Branch:
   **   ~~~   **       COIL:HEATING:WATERTOAIRHEATPUMP:EQUATIONFIT:COIL HEATING WATER TO AIR HEAT PUMP EQUATION FIT 1
   **   ~~~   **   CONDENSER WATER PLANT DEMAND BRANCH 2
   **   ~~~   **     Components on Branch:
   **   ~~~   **       COIL:COOLING:WATERTOAIRHEATPUMP:EQUATIONFIT:COIL COOLING WATER TO AIR HEAT PUMP EQUATION FIT 1
   **   ~~~   **   CONDENSER WATER PLANT DEMAND BYPASS BRANCH
   **   ~~~   **     Components on Branch:
   **   ~~~   **       PIPE:ADIABATIC:CONDENSER WATER PLANT DEMAND BYPASS PIPE
   **   ~~~   **   CONDENSER WATER PLANT DEMAND OUTLET BRANCH
   **   ~~~   **     Components on Branch:
   **   ~~~   **       PIPE:ADIABATIC:CONDENSER WATER PLANT DEMAND OUTLET PIPE
   **   ~~~   ** Supply Branches:
   **   ~~~   **   CONDENSER WATER PLANT SUPPLY INLET BRANCH
   **   ~~~   **     Components on Branch:
   **   ~~~   **       PUMP:VARIABLESPEED:PUMP VARIABLE SPEED 2
   **   ~~~   **   CONDENSER WATER PLANT SUPPLY BRANCH 1
   **   ~~~   **     Components on Branch:
   **   ~~~   **       DISTRICTHEATING:DISTRICT HEATING 1
   **   ~~~   **   CONDENSER WATER PLANT SUPPLY BRANCH 2
   **   ~~~   **     Components on Branch:
   **   ~~~   **       EVAPORATIVEFLUIDCOOLER:SINGLESPEED:EVAPORATIVE FLUID COOLER SINGLE SPEED 1
   **   ~~~   **   CONDENSER WATER PLANT SUPPLY BRANCH 3
   **   ~~~   **     Components on Branch:
   **   ~~~   **       GROUNDHEATEXCHANGER:SYSTEM:GROUND HEAT EXCHANGER VERTICAL 1
   **   ~~~   **   CONDENSER WATER PLANT SUPPLY BRANCH 4
   **   ~~~   **     Components on Branch:
   **   ~~~   **       PIPE:ADIABATIC:PIPE ADIABATIC 3
   **   ~~~   **   CONDENSER WATER PLANT SUPPLY OUTLET BRANCH
   **   ~~~   **     Components on Branch:
   **   ~~~   **       PIPE:ADIABATIC:PIPE ADIABATIC 4
   **   ~~~   ** *************************
   **   ~~~   ** Possible things to look for to correct this problem are:
   **   ~~~   **   Capacity, Operation Scheme, Mass flow problems, Pump Heat building up over time.
   **   ~~~   **   Try a shorter runperiod to stop before it fatals and look at
   **   ~~~   **     lots of node time series data to see what is going wrong.
   **   ~~~   **   If this is happening during Warmup, you can use Output:Diagnostics,ReportDuringWarmup;
   **   ~~~   **   This is detected at the loop level, but the typical problems are in the components.
   **  Fatal  ** CheckForRunawayPlantTemps: Simulation terminated because of run away plant temperatures, too hot
   ...Summary of Errors that led to program termination:
   ..... Reference severe error count=1
   ..... Last severe error=Plant temperatures are getting far too hot, check controls and relative loads and capacities

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

The payload provides no source file, test, or entry point. Begin by reproducing the zone_hvac (rb and osm) failure in OpenStudio 9.3.0 / 3.0.0 and tracing the reported condenser-water plant temperatures; done means identifying and correcting the resource or input that prevents the fatal runaway-temperature termination.

Written by the indexing model from the issue text.

Assessment

Domain
tooling
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.