Environment - simulationEnvironment: startTime=0 stopTime=2400 tolerance=1e-06 numberOfIntervals=2500 stepSize=0.96 Regular simulation: ./Buildings_12_Buildings.Fluid.DXSystems.Cooling.BaseClasses.Examples.EvaporationFlowReversal -abortSlowSimulation -alarm=400 -s cvode -emit_protected -lv LOG_STATS LOG_NLS | error | residualFunc36: Iteration variable `der(eva.m)` is inf or nan. LOG_ASSERT | debug | residualFunc36 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 12.1.1-maint.12.x/Fluid/DXSystems/Cooling/BaseClasses/Evaporation.mo:185:3-194:27:writable] | | | | The following assertion has been violated during initialization at time 0.000000 | | | | ((eva.nomVal.gamma <= eva.gammaMax)) --> "*** Warning: In DX coil model, gamma is too large for these coil conditions. | | | | Instead of gamma = 1.5, a value of 1.00359, 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 - 0.00715296 = -0.0010092 | | | | QLat_flow_nominal = -1000 | | | | " LOG_SUCCESS | info | The initialization finished successfully without homotopy method. LOG_ASSERT | info | [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.1.1-maint.12.x/Fluid/DXSystems/Cooling/BaseClasses/Evaporation.mo:112:3-113:72:writable] | | | | The following assertion has been violated at time 547.200000 | | | | ((eva.dX >= -1.0 and eva.dX <= 0.0)) --> "Variable violating min/max constraint: -1.0 <= eva.dX <= 0.0, has value: 5.00815e-15" LOG_STATS | info | ### STATISTICS ### | | | | | timer | | | | | | 0.00171601s reading init.xml | | | | | | 0.000142287s reading info.xml | | | | | | 0.000467136s [ 3.0%] pre-initialization | | | | | | 0.000357431s [ 2.3%] initialization | | | | | | 2.144e-06s [ 0.0%] steps | | | | | | 0.00189919s [ 12.4%] solver (excl. callbacks) | | | | | | 0.000677722s [ 4.4%] creating output-file | | | | | | -6.33951e-21s [ -0.0%] event-handling | | | | | | 0.00103087s [ 6.7%] overhead | | | | | | 0.0108944s [ 71.0%] simulation | | | | | | 0.0153483s [100.0%] total | | | | | events | | | | | | 4 state events | | | | | | 0 time events | | | | | solver: cvode | | | | | | 2516 steps taken | | | | | | 2534 calls of functionODE | | | | | | 45 evaluations of jacobian | | | | | | 0 error test failures | | | | | | 0 convergence test failures | | | | | | 0s time of jacobian evaluation LOG_SUCCESS | info | The simulation finished successfully.