Environment - simulationEnvironment: startTime=0 stopTime=86400 tolerance=1e-06 numberOfIntervals=2500 stepSize=34.56 Regular simulation: ./Buildings_8_Buildings.Fluid.HeatExchangers.DXCoils.AirCooled.Validation.SingleSpeedEnergyPlus -abortSlowSimulation -alarm=480 -lv LOG_STATS LOG_NLS | error | residualFunc415: Iteration variable xloc[4] is nan. LOG_ASSERT | debug | residualFunc415 failed at time=0. | | | | For more information please use -lv LOG_NLS. LOG_STDOUT | warning | While solving non-linear system an assertion failed during initialization. | | | | | The non-linear solver tries to solve the problem that could take some time. | | | | | It could help to provide better start-values for the iteration variables. | | | | | For more information simulate with -lv LOG_NLS_V LOG_NLS | error | residualFunc415: Iteration variable xloc[2] is nan. LOG_ASSERT | debug | residualFunc415 failed at time=0. | | | | For more information please use -lv LOG_NLS. LOG_NLS | error | residualFunc415: Iteration variable xloc[4] is nan. LOG_ASSERT | debug | residualFunc415 failed at time=0. | | | | For more information please use -lv LOG_NLS. LOG_NLS | error | residualFunc415: Iteration variable xloc[4] is nan. LOG_ASSERT | debug | residualFunc415 failed at time=0. | | | | For more information please use -lv LOG_NLS. LOG_NLS | error | residualFunc415: Iteration variable xloc[4] is nan. LOG_ASSERT | debug | residualFunc415 failed at time=0. | | | | For more information please use -lv LOG_NLS. LOG_NLS | error | residualFunc415: Iteration variable xloc[4] is nan. LOG_ASSERT | debug | residualFunc415 failed at time=0. | | | | For more information please use -lv LOG_NLS. LOG_ASSERT | warning | [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/Fluid/HeatExchangers/DXCoils/BaseClasses/Evaporation.mo:173:3-181:28:writable] | | | | The following assertion has been violated during initialization at time 0.000000 | | | | ((sinSpeDX.eva.dX_nominal > 1e-10)) --> "*** Warning: In DX coil model, dX_nominal = -0.0015626 | | | | This means that the coil is not dehumidifying air at the nominal conditions. | | | | Check nominal parameters. | | | | Nominal values: | | | | Q_flow_nominal = -10500 | | | | COP_nominal = 3 | | | | m_flow_nominal = 1.72 | | | | TEvaIn_nominal = 292.55 (= 19.4 degC) | | | | TConIn_nominal = 308.15 (= 35 degC) | | | | phiIn_nominal = 0.5 | | | | tWet = 1400 | | | | gamma = 1.5 | | | | p_nominal = 101325 | | | | " LOG_SUCCESS | info | The initialization finished successfully with 3 homotopy steps. LOG_ASSERT | info | [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/Fluid/HeatExchangers/DXCoils/BaseClasses/Evaporation.mo:59:3-60:49:writable] | | | | The following assertion has been violated at time 17.280000 | | | | ((sinSpeDX.eva.m >= 0.0)) --> "Variable violating min constraint: 0.0 <= sinSpeDX.eva.m, has value: -3.53507e-25" LOG_ASSERT | info | [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/Fluid/HeatExchangers/DXCoils/BaseClasses/PartialCoolingCapacity.mo:126:7-139:38:writable] | | | | The following assertion has been violated at time 25200.000003 | | | | ((not (sinSpeDX.dxCoo.TEvaIn > sinSpeDX.dxCoo.dryCoi.cooCap.sta[sinSpeDX.dxCoo.dryCoi.cooCap.stage].perCur.TEvaInMax or sinSpeDX.dxCoo.TEvaIn < sinSpeDX.dxCoo.dryCoi.cooCap.sta[sinSpeDX.dxCoo.dryCoi.cooCap.stage].perCur.TEvaInMin))) --> "*** Warning: Evaporator temperature TEvaIn is out of bounds in DX coil model at time = 25200. | | | | stage = 1 | | | | TEvaInMin = 285.928 Kelvin (12.7778 degC) | | | | TEvaIn = 298.441 Kelvin (25.2914 degC) | | | | TEvaInMax = 297.039 Kelvin (23.8889 degC) | | | | Extrapolation can introduce large errors. | | | | This warning will only be reported once for each stage." LOG_NLS | error | residualFunc601: Iteration variable xloc[2] is nan. LOG_ASSERT | debug | residualFunc601 failed at time=25200.0000050401. | | | | For more information please use -lv LOG_NLS. LOG_STDOUT | warning | While solving non-linear system an assertion failed at time 25200. | | | | | The non-linear solver tries to solve the problem that could take some time. | | | | | It could help to provide better start-values for the iteration variables. | | | | | For more information simulate with -lv LOG_NLS_V LOG_ASSERT | info | [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/Fluid/HeatExchangers/DXCoils/BaseClasses/Evaporation.mo:110:3-111:72:writable] | | | | The following assertion has been violated at time 25200.000005 | | | | ((sinSpeDX.eva.dX >= -1.0 and sinSpeDX.eva.dX <= 0.0)) --> "Variable violating min/max constraint: -1.0 <= sinSpeDX.eva.dX <= 0.0, has value: 2.93874e-39" LOG_NLS | error | residualFunc601: Iteration variable xloc[2] is nan. LOG_ASSERT | debug | residualFunc601 failed at time=61200.0000061202. | | | | For more information please use -lv LOG_NLS. LOG_STDOUT | warning | While solving non-linear system an assertion failed at time 61200. | | | | | The non-linear solver tries to solve the problem that could take some time. | | | | | It could help to provide better start-values for the iteration variables. | | | | | For more information simulate with -lv LOG_NLS_V LOG_NLS | error | residualFunc601: Iteration variable xloc[4] is nan. LOG_ASSERT | debug | residualFunc601 failed at time=61200.0000061202. | | | | For more information please use -lv LOG_NLS. LOG_NLS | error | residualFunc601: Iteration variable xloc[2] is nan. LOG_ASSERT | debug | residualFunc601 failed at time=61200.0000061202. | | | | For more information please use -lv LOG_NLS. LOG_NLS | error | residualFunc601: Iteration variable xloc[2] is nan. LOG_ASSERT | debug | residualFunc601 failed at time=61200.0000061202. | | | | For more information please use -lv LOG_NLS. LOG_STATS | info | ### STATISTICS ### | | | | | timer | | | | | | 0.0198878s reading init.xml | | | | | | 0.00131786s reading info.xml | | | | | | 0.000103243s [ 0.2%] pre-initialization | | | | | | 0.00057561s [ 0.9%] initialization | | | | | | 3.6609e-05s [ 0.1%] steps | | | | | | 0.00279666s [ 4.5%] solver (excl. callbacks) | | | | | | 0s [ 0.0%] creating output-file | | | | | | 0.00271346s [ 4.3%] event-handling | | | | | | 0.00636857s [ 10.1%] overhead | | | | | | 0.050184s [ 79.9%] simulation | | | | | | 0.0627782s [100.0%] total | | | | | events | | | | | | 26 state events | | | | | | 24 time events | | | | | solver: dassl | | | | | | 1707 steps taken | | | | | | 1965 calls of functionODE | | | | | | 1288 evaluations of jacobian | | | | | | 23 error test failures | | | | | | 0 convergence test failures | | | | | | 0.0144119s time of jacobian evaluation LOG_SUCCESS | info | The simulation finished successfully.