Environment - simulationEnvironment: startTime=0 stopTime=2400 tolerance=1e-06 numberOfIntervals=2500 stepSize=0.96 Regular simulation: ./Buildings_latest_Buildings.Fluid.DXSystems.Cooling.BaseClasses.Examples.EvaporationFlowReversal -abortSlowSimulation -alarm=480 -s cvode -emit_protected -lv LOG_STATS LOG_NLS | error | residualFunc36: Iteration variable xloc[6] is 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 11.0.0-master/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_STATS | info | ### STATISTICS ### | | | | | timer | | | | | | 0.001227s reading init.xml | | | | | | 0.000127229s reading info.xml | | | | | | 0.000257483s [ 0.7%] pre-initialization | | | | | | 0.000302738s [ 0.9%] initialization | | | | | | 4.478e-06s [ 0.0%] steps | | | | | | 0.00455101s [ 12.8%] solver (excl. callbacks) | | | | | | 0.000858346s [ 2.4%] creating output-file | | | | | | 5.29396e-23s [ 0.0%] event-handling | | | | | | 0.00131871s [ 3.7%] overhead | | | | | | 0.0281459s [ 79.3%] simulation | | | | | | 0.0355029s [100.0%] total | | | | | events | | | | | | 4 state events | | | | | | 0 time events | | | | | solver: cvode | | | | | | 5013 steps taken | | | | | | 5029 calls of functionODE | | | | | | 86 evaluations of jacobian | | | | | | 0 error test failures | | | | | | 0 convergence test failures | | | | | | 0s time of jacobian evaluation LOG_SUCCESS | info | The simulation finished successfully.