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





Greetings!!

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 
e-mail: ariadnemm@xxxxxxxxx
http://www.linkedin.com/in/ariadnemm
MSN: ariadnemm@xxxxxxxxxxx
SKYPE: ariadnemm





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