Environment - simulationEnvironment: startTime=0 stopTime=86400 tolerance=1e-06 numberOfIntervals=2500 stepSize=34.56 Regular simulation: ./Buildings_9_Buildings.Fluid.HeatExchangers.DXCoils.WaterCooled.Validation.VariableSpeedEnergyPlusPartLoad -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS LOG_NLS | error | residualFunc1210: Iteration variable `der(varSpeDX.eva.eva.m)` is inf or nan. LOG_ASSERT | debug | residualFunc1210 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 | residualFunc1210: Iteration variable `varSpeDX.eva.eva.XiSatRefOut` is inf or nan. LOG_ASSERT | debug | residualFunc1210 failed at time=0. | | | | For more information please use -lv LOG_NLS. LOG_NLS | error | residualFunc1210: Iteration variable `der(varSpeDX.eva.eva.m)` is inf or nan. LOG_ASSERT | debug | residualFunc1210 failed at time=0. | | | | For more information please use -lv LOG_NLS. LOG_NLS | error | residualFunc1210: Iteration variable `der(varSpeDX.eva.eva.m)` is inf or nan. LOG_ASSERT | debug | residualFunc1210 failed at time=0. | | | | For more information please use -lv LOG_NLS. LOG_ASSERT | warning | [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 9.1.3-maint.9.1.x/Fluid/HeatExchangers/DXCoils/BaseClasses/Evaporation.mo:185:3-194:27:writable] | | | | The following assertion has been violated during initialization at time 0.000000 | | | | ((varSpeDX.eva.eva.nomVal.gamma <= varSpeDX.eva.eva.gammaMax)) --> "*** Warning: In DX coil model, gamma is too large for these coil conditions. | | | | Instead of gamma = 1.5, a value of 0.346977, which | | | | corresponds to a mass transfer effectiveness of 0.8, will be used. | | | | Coil nominal performance data are: | | | | nomVal.m_flow_nominal = 0.462462 | | | | dX_nominal = XEvaOut_nominal-XEvaWetBulOut_nominal = 0.00571197 - 0.00634552 = -0.000633544 | | | | QLat_flow_nominal = -1689.5 | | | | " LOG_SUCCESS | info | The initialization finished successfully with 3 homotopy steps. LOG_ASSERT | info | [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 9.1.3-maint.9.1.x/Fluid/HeatExchangers/DXCoils/BaseClasses/Evaporation.mo:59:3-62:61:writable] | | | | The following assertion has been violated at time 17.280000 | | | | ((varSpeDX.eva.eva.m >= 0.0)) --> "Variable violating min constraint: 0.0 <= varSpeDX.eva.eva.m, has value: -4.29448e-25" LOG_STATS | info | ### STATISTICS ### | | | | | timer | | | | | | 0.0962336s reading init.xml | | | | | | 0.00821091s reading info.xml | | | | | | 0.00229573s [ 0.7%] pre-initialization | | | | | | 0.00160831s [ 0.5%] initialization | | | | | | 9.8225e-05s [ 0.0%] steps | | | | | | 0.0057795s [ 1.8%] solver (excl. callbacks) | | | | | | 0.00785745s [ 2.4%] creating output-file | | | | | | 0.00593762s [ 1.8%] event-handling | | | | | | 0.0170725s [ 5.2%] overhead | | | | | | 0.289436s [ 87.7%] simulation | | | | | | 0.330085s [100.0%] total | | | | | events | | | | | | 23 state events | | | | | | 24 time events | | | | | solver: dassl | | | | | | 1657 steps taken | | | | | | 1887 calls of functionODE | | | | | | 1256 evaluations of jacobian | | | | | | 11 error test failures | | | | | | 0 convergence test failures | | | | | | 0.0779363s time of jacobian evaluation LOG_SUCCESS | info | The simulation finished successfully.