Environment - simulationEnvironment: startTime=0 stopTime=7200 tolerance=1e-06 numberOfIntervals=2500 stepSize=2.88 Regular simulation: ./Buildings_3.0.0_Buildings.Fluid.HeatExchangers.DXCoils.BaseClasses.Examples.EvaporationPulse -abortSlowSimulation -alarm=480 -lv LOG_STATS LOG_NLS | error | residualFunc40: Iteration variable `der(evaSho.m)` is inf or nan. LOG_ASSERT | debug | residualFunc40 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 | residualFunc77: Iteration variable `der(evaNor.m)` is inf or nan. LOG_ASSERT | debug | residualFunc77 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_ASSERT | warning | [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 3.0.0/Fluid/HeatExchangers/DXCoils/BaseClasses/Evaporation.mo:170:3-179:27:writable] | | | | The following assertion has been violated during initialization at time 0.000000 | | | | ((evaSho.nomVal.gamma <= evaSho.gammaMax)) --> "*** Warning: In DX coil model, gamma is too large for these coil conditions. | | | | Instead of gamma = 1.5, a value of 0.952861, which | | | | corresponds to a mass transfer effectiveness of 0.8, will be used. | | | | Coil nominal performance data are: | | | | nomVal.m_flow_nominal = 0.497018 | | | | dX_nominal = XEvaOut_nominal-XEvaWetBulOut_nominal = 0.00614376 - 0.00710194 = -0.000958189 | | | | QLat_flow_nominal = -1000 | | | | " LOG_ASSERT | warning | [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 3.0.0/Fluid/HeatExchangers/DXCoils/BaseClasses/Evaporation.mo:159:3-164:30:writable] | | | | The following assertion has been violated during initialization at time 0.000000 | | | | ((evaSho.dX_nominal > 1e-10)) --> "*** Warning: In DX coil model, dX_nominal = -0.000958189 | | | | This means that the coil is not dehumidifying air at the nominal conditions. | | | | Check nominal parameters. | | | | Nominal values: | | | | Q_flow_nominal = -5000 | | | | COP_nominal = 3 | | | | m_flow_nominal = 0.497018 | | | | 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_ASSERT | warning | [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 3.0.0/Fluid/HeatExchangers/DXCoils/BaseClasses/Evaporation.mo:170:3-179:27:writable] | | | | The following assertion has been violated during initialization at time 0.000000 | | | | ((evaNor.nomVal.gamma <= evaNor.gammaMax)) --> "*** Warning: In DX coil model, gamma is too large for these coil conditions. | | | | Instead of gamma = 1.5, a value of 0.952861, which | | | | corresponds to a mass transfer effectiveness of 0.8, will be used. | | | | Coil nominal performance data are: | | | | nomVal.m_flow_nominal = 0.497018 | | | | dX_nominal = XEvaOut_nominal-XEvaWetBulOut_nominal = 0.00614376 - 0.00710194 = -0.000958189 | | | | QLat_flow_nominal = -1000 | | | | " LOG_ASSERT | warning | [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 3.0.0/Fluid/HeatExchangers/DXCoils/BaseClasses/Evaporation.mo:159:3-164:30:writable] | | | | The following assertion has been violated during initialization at time 0.000000 | | | | ((evaNor.dX_nominal > 1e-10)) --> "*** Warning: In DX coil model, dX_nominal = -0.000958189 | | | | This means that the coil is not dehumidifying air at the nominal conditions. | | | | Check nominal parameters. | | | | Nominal values: | | | | Q_flow_nominal = -5000 | | | | COP_nominal = 3 | | | | m_flow_nominal = 0.497018 | | | | 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 without homotopy method. LOG_ASSERT | info | [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 3.0.0/Fluid/HeatExchangers/DXCoils/BaseClasses/Evaporation.mo:68:3-69:62:writable] | | | | The following assertion has been violated at time 900.000000 | | | | ((evaSho.mEva_flow <= 0.0)) --> "Variable violating max constraint: evaSho.mEva_flow <= 0.0, has value: 0.000866258" LOG_ASSERT | info | [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 3.0.0/Fluid/HeatExchangers/DXCoils/BaseClasses/Evaporation.mo:108:3-109:72:writable] | | | | The following assertion has been violated at time 900.000000 | | | | ((evaSho.dX >= 0.0 and evaSho.dX <= 1.0)) --> "Variable violating min/max constraint: 0.0 <= evaSho.dX <= 1.0, has value: -0.00233789" LOG_ASSERT | info | [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 3.0.0/Fluid/HeatExchangers/DXCoils/BaseClasses/Evaporation.mo:68:3-69:62:writable] | | | | The following assertion has been violated at time 1800.000000 | | | | ((evaNor.mEva_flow <= 0.0)) --> "Variable violating max constraint: evaNor.mEva_flow <= 0.0, has value: 0.00102371" LOG_ASSERT | info | [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 3.0.0/Fluid/HeatExchangers/DXCoils/BaseClasses/Evaporation.mo:108:3-109:72:writable] | | | | The following assertion has been violated at time 1800.000000 | | | | ((evaNor.dX >= 0.0 and evaNor.dX <= 1.0)) --> "Variable violating min/max constraint: 0.0 <= evaNor.dX <= 1.0, has value: -0.00233789" LOG_STATS | info | ### STATISTICS ### | | | | | timer | | | | | | 0.00189694s reading init.xml | | | | | | 0.000185197s reading info.xml | | | | | | 7.8558e-05s [ 0.3%] pre-initialization | | | | | | 0.000402284s [ 1.3%] initialization | | | | | | 2.5858e-05s [ 0.1%] steps | | | | | | 0.00114866s [ 3.7%] solver (excl. callbacks) | | | | | | 0s [ 0.0%] creating output-file | | | | | | 0.00119721s [ 3.9%] event-handling | | | | | | 0.00189413s [ 6.1%] overhead | | | | | | 0.0263413s [ 84.7%] simulation | | | | | | 0.031088s [100.0%] total | | | | | events | | | | | | 10 state events | | | | | | 0 time events | | | | | solver: dassl | | | | | | 347 steps taken | | | | | | 440 calls of functionODE | | | | | | 144 evaluations of jacobian | | | | | | 4 error test failures | | | | | | 0 convergence test failures | | | | | | 0.000480908s time of jacobian evaluation LOG_SUCCESS | info | The simulation finished successfully.