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RE: [EnergyPlus_Support] What's the best way to simulate the

 impact of Mist (tiny water droplets)?
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You might experiment with the fininite element combined heat & moisture
object.


Sent from my Windows Phone
From: seogchano
Sent: 8/5/2012 3:40 PM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] What's the best way to simulate the
impact of Mist (tiny water droplets)?
Hello

To my best understand, EnergyPlus does not provide an object or way to
represent mist (tiny water droplets) except specifying
"FractionLatent" of equipment objects. Am I correct?

The problem in using "FractionLatent" value for simulating the impact
of mist on heating/cooling energy consumption is caused by the fact
that mist is different from vapor. While vapor is a gas including
latent heat, mist is actually a liquid. It is true that both vapor and
mist drive the zone to take more energy for heating/cooling than when
having a dried air only.

I am not still clear of how to simulate mist in EnergyPlus. Please let
me know if you know a better way. If using "FractionLatent" for mist
simulation is the only solution, is there a good approximation
mathematical function to convert the mass of mist into
"FactionLatent"?

Thank you
Seog-Chan


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ent-Type"></head><body><div><div style=3D"font-family: Calibri,sans-serif; =
font-size: 11pt;">You might experiment with the fininite element combined h=
eat &amp; moisture object. <br><br><br>Sent from my Windows Phone<br></div>=
</div><hr><span style=3D"font-family: Tahoma,sans-serif; font-size: 10pt; f=
ont-weight: bold;">From: </span><span style=3D"font-family: Tahoma,sans-ser=
if; font-size: 10pt;">seogchano</span><br><span style=3D"font-family: Tahom=
a,sans-serif; font-size: 10pt; font-weight: bold;">Sent: </span><span style=
=3D"font-family: Tahoma,sans-serif; font-size: 10pt;">8/5/2012 3:40 PM</spa=
n><br><span style=3D"font-family: Tahoma,sans-serif; font-size: 10pt; font-=
weight: bold;">To: </span><span style=3D"font-family: Tahoma,sans-serif; fo=
nt-size: 10pt;">EnergyPlus_Support@xxxxxxxxxxxxxxx</span><br><span style=3D=
"font-family: Tahoma,sans-serif; font-size: 10pt; font-weight: bold;">Subje=
ct: </span><span style=3D"font-family: Tahoma,sans-serif; font-size: 10pt;"=
>[EnergyPlus_Support] What's the best way to simulate the impact of Mist (t=
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      <p>Hello<br>
<br>
To my best understand, EnergyPlus does not provide an object or way to repr=
esent mist (tiny water droplets) except specifying &quot;FractionLatent&quo=
t; of equipment objects. Am I correct?<br>
<br>
The problem in using &quot;FractionLatent&quot; value for simulating the im=
pact of mist on heating/cooling energy consumption is caused by the fact th=
at mist is different from vapor. While vapor is a gas including latent heat=
, mist is actually a liquid. It is true that both vapor and mist drive the =
zone to take more energy for heating/cooling than when having a dried air o=
nly.<br>
<br>
I am not still clear of how to simulate mist in EnergyPlus. Please let me k=
now if you know a better way. If using &quot;FractionLatent&quot; for mist =
simulation is the only solution, is there a good approximation mathematical=
 function to convert the mass of mist into &quot;FactionLatent&quot;?<br>
<br>
Thank you<br>
Seog-Chan<br>
<br>
</p>

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    =20

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