<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<font size="+1"><tt>Auto sizing is to ball park your system. There
is no computer program which with the press of a button will
design your building for you. You have unmet hours because you
have conflicts in your design. You now have to identify the
conflicts and resolve them. eQuest works by prioritizing the
cooling system, hence when you have conflicts they show up
mostly as unheated hours. eQuest has a low default on airflow,
0.5 cfm/SF, this many times is a good place to start. Depending
on where you are 0.75 or 1.0 could work better. You can also
vary the flow to different zones independently. You can't put
0.5 cfm into 20 spaces from the same AHU and expect the heating
and cooling needs of each space to be met 100% of the time. Get
into your sim file and figure out where the spaces are with
large unmet hours, figure out why and start adjusting the inputs
to reduce them.<br>
There is no point to average the 4 orientations, nor is it
allowed, just LEED mumbo jumbo. It just illustrates how the
orientation of your building effects the energy consumption to
run it. Most modellers get a building, a street, a front and
back with no option on orientation. That is your base case. It
can be handy to illustrate design flaws if there is a large
difference in energy consumption in different directions. Just
don't call it that when you are telling the architect a 20 story
atrium is not a great idea on the north side of a building. lol.<br>
</tt></font><font size="+1"><tt>Bruce Easterbrook P.Eng.<br>
Abode Engineering</tt></font><br>
<br>
On 10/04/2012 02:53 PM, Yusuf Turab wrote:
<blockquote
cite="mid:CACVeg1XXC-bH98HcYcF5sK9_zyuRtB8UH9caTH0y3s6GVvFD_A@mail.gmail.com"
type="cite">Hello Group<br>
<ul>
<li>Why do I get unmet hours even when I select the auto size
option in the HVAC system? What is the point of auto sizing?<br>
</li>
<li>Is there a way to simulate all 4 orientations and get an
average result for the base case?</li>
</ul>
<p>Thanks<br>
</p>
Yusuf Turab<br>
IGBC Accredited Professional, LEED Green Associate & GRIHA
Trainer<br>
Y T Enterprises<br>
18 A, Hamsa Layout ¦ R.S Puram ¦ Coimbatore - 641002<br>
<br>
<a moz-do-not-send="true" href="http://www.ytenterprises.com/"
target="_blank">http://www.ytenterprises.com/</a><br>
<br>
***** Email confidentiality notice *****<br>
The information contained in this email and any attachments is
intended for the name recipients only. It may contain privileged
and confidential information and if you are not the intended
recipient, you must not copy distribute or take any action in
reliance on it. If you have received this email in error, please
return it to the sender advising of the error and delete all
copies from your system.<br>
<br>
<br>
<div class="gmail_quote">On 10 April 2012 00:54, Yusuf Turab <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:yusuf@ytenterprises.com">yusuf@ytenterprises.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
Hello Group<br>
<br>
I have just started working on my first energy
modeling project. I have two questions:<br>
<ul>
<li>How do I model roof reflectivity. I want to model a roof
of 4 inch concrete with 1 inch stucco at the bottom and
top and cover the roof with cool roof tiles. I am not sure
how I can account for the energy efficiency gains compared
to base case through a high SRI roof.</li>
<li>I am trying to model a large gated community with 330
villas and 7 other common buildings. As someone suggested
on this group I am modeling each building type separately
and using excel to come up with a total energy usage. But
I am not sure how to model the street lighting and
landscape lighting at the exteriors. We plan to use solar
street lights and I want to demonstrate the savings
through use of solar energy.</li>
</ul>
Many Thanks<br>
<br>
Yusuf Turab<br>
<br>
<br>
<br>
<div class="gmail_quote">On 10 April 2012 00:32, nirupama
lakshminarasimhan <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:nirupamalnarasimhan@gmail.com"
target="_blank">nirupamalnarasimhan@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<p>I am modeling a big public school with a lot of systems
and custom windows. The equest file we have right now is
taking too long to load. I've tried opening it from
different locations- the default equest project folder
on C: , the public server, external HDD, etc. It is just
too slow in "importing project data" when it opens. The
last time this happened, it was taking too long to load
the BDL file and I ended up deleting a host of systems
and starting from scratch. All my files- the .inp, .pd2,
etc are in the same path. I just cannot get it to work
faster. I'm trying to calibrate the model and it is an
awfully long wait for each simulation. Does someone have
any thoughts on how I could get this to work faster? </p>
<p> </p>
<p>Thank you.</p>
<span><font color="#888888">
<p>Nirupama</p>
</font></span><br>
_______________________________________________<br>
Equest-users mailing list<br>
<a moz-do-not-send="true"
href="http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org"
target="_blank">http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org</a><br>
To unsubscribe from this mailing list send a blank
message to <a moz-do-not-send="true"
href="mailto:EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG"
target="_blank">EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG</a><br>
<br>
</blockquote>
</div>
<br>
</blockquote>
</div>
<br>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
Equest-users mailing list
<a class="moz-txt-link-freetext" href="http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org">http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org</a>
To unsubscribe from this mailing list send a blank message to <a class="moz-txt-link-abbreviated" href="mailto:EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG">EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG</a>
</pre>
</blockquote>
</body>
</html>