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Folks,<br>
<br>
A side issue on the same topic.<br>
<br>
I have gone through some literature on this topic. All the
calculation methods that I found are actually methods to calculate
evaporation rate from the pool with the ultimate goal to calculate
(a) the heating load to maintain the water temperature and (b) the
latent load for the air above the water. The underlying assumption
used in all methods is that all the evaporation heat is taken from
the water (and nothing from the air).<br>
<br>
I investigated this matter because I want to quantify the cooling
effect of an indoor pool to a naturally ventilated room. If I used
the calculation methods from the literature that I found (including
Shah method below) what I end up with is a latent load and a
sensible load (both positive into the zone) that will be added to
the room, simply because the method assumes that all the evaporation
heat comes from the water (and nothing from the air).<br>
<br>
I found this very hard to swallow because we all know for a fact
that people in hot climate use pools to cool down the indoor
temperature. I am not talking about fountain or sprayer, which has a
totally different cooling mechanism where all of the evaporation
heat comes from the air. I am talking about pools, either indoor
pool or pools surrounding the building.<br>
<br>
Is there any literature out there on the cooling effect of pools?<br>
<br>
Thanks,<br>
<br>
Ery<br>
<br>
<br>
<br>
On 05/03/2012 09:32 AM, Bishop, Bill wrote:
<blockquote
cite="mid:90D829482BDEDB4CB264DE5060592B190590E909@lightning.pathfinderengineers.com"
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<div class="WordSection1">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Cristian,<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">You
can model it but you will need to calculate the latent and
sensible loads yourself, at least if you are using eQUEST.
Without having experience with fishponds, I would approach
it like a natatorium (indoor swimming pool) and use the
ASHRAE Handbook – HVAC Applications Chapter 5 for design
guidance and loads calculations. Also, see this article:
<a moz-do-not-send="true"
href="http://hpac.com/humidification-dehumidification/simplified-calculating-evaporation-1011/">http://hpac.com/humidification-dehumidification/simplified-calculating-evaporation-1011/</a>
for alternate method of calculating evaporation loads. Based
on your drawings, I would also research state-of-the-art for
aquaculture facilities, as that looks to be what you are
designing.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Bill<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><a moz-do-not-send="true"
href="mailto:wbishop@pathfinder-ea.com"><b><span
style="font-size:10.0pt;font-family:"Franklin
Gothic
Medium","sans-serif";color:black;text-decoration:none"><img
id="Picture_x0020_1"
src="cid:part1.01040503.08020807@gmail.com" border="0"
height="118" width="481"></span></b></a><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
<a class="moz-txt-link-abbreviated" href="mailto:equest-users-bounces@lists.onebuilding.org">equest-users-bounces@lists.onebuilding.org</a>
[<a class="moz-txt-link-freetext" href="mailto:equest-users-bounces@lists.onebuilding.org">mailto:equest-users-bounces@lists.onebuilding.org</a>]
<b>On Behalf Of </b>Cristian Salvador Jara Toro<br>
<b>Sent:</b> Thursday, May 03, 2012 11:15 AM<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br>
<b>Subject:</b> Re: [Equest-users] fishpond<o:p></o:p></span></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">Sorry, but I
meant "design" instead of "model"... because I don´t think to
model a room with water in it be possible...<o:p></o:p></p>
<div>
<p class="MsoNormal">On Thu, May 3, 2012 at 10:53 AM, Cristian
Salvador Jara Toro <<a moz-do-not-send="true"
href="mailto:cristian.jara.toro@gmail.com" target="_blank">cristian.jara.toro@gmail.com</a>>
wrote:<o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">Greetings!<br>
<br>
I have to model a room with a fishpond (more like close to a
several fountains where fishes will be inside).
WxLxH=9x13x2.5 in meters.<br>
Has anybody modeled something like that? <br>
<br>
So, what I need to know is about ventilation rates for a
room like that, wich contains water and fishes swimming in
it, but my worry is about condensations, so if anybody has
some paper or standard, please let me know.<br>
<br>
Thanks in advance...<span style="color:#888888"><br
clear="all">
<br>
<span class="hoenzb">-- </span><br>
<span class="hoenzb">Cristian Jara Toro</span><br>
<span class="hoenzb">Cel: 6 207 8566</span><br>
<br>
</span><o:p></o:p></p>
</div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
<br clear="all">
<br>
-- <br>
Cristian Jara Toro<br>
Cel: 6 207 8566<br>
<br>
<o:p></o:p></p>
</div>
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