Re: [EnergyPlus_Support] Mass Fluxes

[habaza11@xxxxxx]

Thank you;

The average(ZN001:WALL004:Inside Surface Mass Flux[kg/s/m2](Hourly)) = -6.03E-06
>>
>> The average(ZN002:WALL004:Inside Surface Mass Flux[kg/s/m2](Hourly)) = 2.19E-05 
the balance between the average moisture input and output of this wall will be -6.03E-06+ 2.19E-05 = 1.59E-05 kg/s. Does this mean that the wall's moisture net gain in average is 1.59E-05 kg for each second of the year? if this is the case then;
Since I run the simulation for a full year, the total moisture gain of this wall will be 1.59E-05 * 60*60*24*364 =499 kg/m2 
I did not make any changes on the MTFT ermreheat example file other than changing the run time and using weather data file.
Thank you
H. Abaza

"Michael J. Witte" <mjwitte@xxxxxxxx> wrote:

>The "total" fluxes of -5.28E-02 and 1.92E-01, did you sum over the
>year or take the average.  Since these are fluxes, they must be
>averaged.
>
>On 9 Jul 2002, at 16:28, habaza11@xxxxxx wrote:
>
>> I run the example MTFT ermreheat in energy plus with a full year weather data, and I found the following;
>>
>> The total (ZN001:WALL004:Inside Surface Mass Flux[kg/s/m2](Hourly)) = -5.28E-02
>>
>> The total  (ZN002:WALL004:Inside Surface Mass Flux[kg/s/m2](Hourly)) = 1.92E-01
>>
>> Since wall ZN001:WALL004 is the same wall ZN002:WALL004 ( two faces of the same partition) then the moisture which is stored in this wall will be
>>
>> -5.28E-02 + .92E-01 = 1.39E-01 kg/s/m2 = 501 kg/hour (1.39E-01 x 60 x 60).
>>
>> This partition has two 3/4 “ gypsum board with moisture capacity of .13 m3/kg.
>>
>> Could you please advice if the above math is correct?.
>>
>>
>>
>> Thank you.
>>
>>
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