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Re: [EnergyPlus_Support] Re: indoor swimming pool

Alice,

There's no place to enter a latent load directly. It is always specified as a fraction
of the total energy consumption. If you want an independent latent load you should
use OtherEquipment; then you can make the latent fraction equal to 1.0 and there
will be no  electrical or other energy consumption associated with the load. Also, remeber
you can have more than one load of a given type (electrical, gas, other) associated with
a zone. This gives you a lot of flexibility in modeling multiple internal loads.

Fred Buhl

alice.bellazzi wrote:
> Hi,

in E+ I can't find where I can insert the latent gain..Do you insert 
it just like an internal gain?Is it a right approach? With DB, if 
you use "detailed gains", you can insert a latent gain. The problem 
is that it is no possible to assign a load: you can write a 
percentage of latent, a percentage of radiant. Because it join the 
latent load to an equipment. I don't know if someone can understand 
my bad english..
Thank you very much,

Alice






--- In <a class="moz-txt-link-abbreviated" href="mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx";>EnergyPlus_Support@xxxxxxxxxxxxxxx</a>, "xyliu925" <a class="moz-txt-link-rfc2396E" href="mailto:bill.liu@...";>&lt;bill.liu@...&gt;</a> 
wrote:

>> Hi

Could I get the paper, please?

My email address is 

bill.liu@...

Thanks


--- In <a class="moz-txt-link-abbreviated" href="mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx";>EnergyPlus_Support@xxxxxxxxxxxxxxx</a>, "solarmech" 
&lt;solarmech@&gt; wrote:

>>> Hello. I aggre with the "impossible" part.

We had to simulate an indoor swimming pool once. We used the 
following approach:
The natatorium space was one zone. solar gains and internal 
temperature of that zone was used in an excel programm where 

<!---->water 

>>> temperature of the pool and the latent heat gain given by the 

<!---->pool 

>>> was calculated. Next step was to use these temperatures 

<!---->(8760hours) 

>>> as an "othersidecoefficient" surface for the natatorium zone 

<!---->floor 

>>> and latent heat gain as an internal gain (8760hour). and then 
calculate zone temperature again. in a three time loop.

think about it and try it. 

The following paper might help. 
THE HEAT BALANCE OF URBAN
SWIMMING POOLS
G, SZEICZ and R. C. MCMONAGLE
Scarborough College, University of Toronto, 1265 Military Trail, 

West 

>>> Hill, Ontario, Canada MIC 1A4
If you cant find it email me personally and I sent it to you.

Regards



--- In <a class="moz-txt-link-abbreviated" href="mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx";>EnergyPlus_Support@xxxxxxxxxxxxxxx</a>, "Edward G. Lyon" 
&lt;eglyon@&gt; wrote:

>>>> I believe that it is nearly impossible to fully model a 

<!---->swimming 

>>> pool in any of the energy modeling programs.  There are no means 

<!---->to 

>>> model water evaporation interaction with the mechanical 

<!---->equipment 

>> and 

>>> the current mechanical equipment can't be combined and 

<!---->controlled 

>> to 

>>> simulate some of the more specialized pool mechanical systems.  

<!---->The 

>>> task would require becoming an EnergyPlus developer and writing 

your 

>>> own modules for the load and equipment.

>>>> Ned Lyon, P.E. (MA)
Staff Consultant
SIMPSON GUMPERTZ &amp; HEGER
781.907.9000 main
781.907.9350 direct
781.907.9009 fax
<a class="moz-txt-link-abbreviated" href="http://www.sgh.com";>www.sgh.com</a>

From: <a class="moz-txt-link-abbreviated" href="mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx";>EnergyPlus_Support@xxxxxxxxxxxxxxx</a> 

[<a class="moz-txt-link-freetext" href="mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx";>mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx</a>] On Behalf Of 
alice.bellazzi

>>>> Sent: Thursday, January 22, 2009 3:40 AM
To: EnergyPlus_Support
Subject: [EnergyPlus_Support] indoor swimming pool


Hi,

usually I work with DB, but I want to learn to use E+..and now 

<!---->I 

>>> have to simulate an indoor swimming pool...It is possible in E+?

>>>> The roof is in ETFE..I think I need to simplifing it, because 

<!---->it 

>> is 

>>> really difficult to draw the exact shape, it is a kind of 
transparent "pillow".

>>>> Thank you very much,

Alis

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