[EnergyPlus_Support] Heat and Moisture Simulation (EMPD and HAM)

I'm a new user of Energy Plus and I'm exploring the possibilities of considering heat and moisture materials in the simulation.

To begin testing, I started with a simple model of Bestest (case 900) and I assigned the materials based on the data set file: MoistureMaterials.idf.

The simulation ran, but there were thousands of warnings, like recurring errors all along the calculations. I don't know if there is something missing in the parameters/objects, or if these warnings can be corrected.

This is the ERR message:

____________________________________

************* No node connection errors were found.

************* Beginning Simulation

** Warning ** Calculated Relative Humidity out of range (PsyRhFnTdbRhovLBnd0C)

** ~~~ ** Routine=Unknown, Environment=Denver-Stapleton CO USA TMY--23062 WMO#=724690, at Simulation time=01/02 14:30 - 14:45

** ~~~ ** Dry-Bulb= 1.87 Rhovapor= 5.571E-003 Calculated Relative Humidity [%]= 101.16

** ~~~ ** Relative Humidity being reset to 100.0%

** Warning ** Zone Air Heat Balance is out of balance for zone named ZONE 1

** ~~~ ** Zone Air Heat Balance Deviation Rate is more than 47.9 {W}

** ~~~ ** Occurance info: Environment=Denver-Stapleton CO USA TMY--23062 WMO#=724690, at Simulation time=01/12 16:23 - 16:30

And this is the summary ( I included "Output:Diagnostics" for more details):

_________________________________________________

************* ===== Recurring Error Summary =====

************* The following recurring error messages occurred.

*************

************* ** Warning ** Calculated Relative Humidity out of range (PsyRhFnTdbRhovLBnd0C)

************* ** ~~~ ** This error occurred 1997 total times;

************* ** ~~~ ** during Warmup 0 times;

************* ** ~~~ ** during Sizing 0 times.

************* ** ~~~ ** Max=132.001169 % Min=101.002451 %

*************

************* ** Warning ** Zone Air Heat Balance is out of balance ... zone named ZONE 1

************* ** ~~~ ** This error occurred 2953 total times;

************* ** ~~~ ** during Warmup 0 times;

************* ** ~~~ ** during Sizing 0 times.

************* ** ~~~ ** Max=90.57367 {W} Min=1.896608E-003 {W}

*************

************* ===== Final Error Summary =====

************* The following error categories occurred. Consider correcting or noting.

************* Zone Air Heat Balance Warnings

************* ..Zone Air Heat Balance out of Balance warnings are currently used by developers.

************* ..Users can safely ignore these warnings.

_______________________________________________________________

Is it ok to ignore these warnings, like said on the last line above?

Thanks!!

Regards!!

--
Ariadne Marques de Mendonça
Civil Engineer

Master student of Civil Engineering

Laboratory of Energy Efficiency in Buildings

UFSC - Universidade Federal de Santa Catarina

Florianópolis/SC - Brazil

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