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Matt,<br>
<br>
With some previous versions of DOE-2 (2.1C, D, E), there was a
Function feature that allowed users to add pieces of Fortran-like
pseudo-code into the input file at designated points in the
program. Over the years, I've seen Functions varying in complexity
from basically single-line adjustments of some input value to
something approaching a new system-type, such as CANMET developing
a Function for desiccant cooling in the mid-90's for an IEA project
in which I was involved in the mid-90's.<br>
<br>
I think most of the source code for Functions are still in DOE-2.2,
but they have not been updated or checked for years, and thus for
now this feature has been deactivated.<br>
<br>
There are pro's and con's for Functions. On the pro side, it allows
adventuresome modelers like you to actually play around with the
code. On the con side, you have to know what you're doing, with a
high probability of breaking something if you don't. <br>
<br>
In respect to VRV, I've heard that the DOE-2.2 development team has
been working on this for quite some time, and will probably be
included in the next release.<br>
<br>
Joe
<pre class="moz-signature" cols="90">Joe Huang
White Box Technologies, Inc.
346 Rheem Blvd., Suite 108D
Moraga CA 94556
<a class="moz-txt-link-abbreviated" href="mailto:yjhuang@whiteboxtechnologies.com">yjhuang@whiteboxtechnologies.com</a>
<a class="moz-txt-link-abbreviated" href="http://www.whiteboxtechnologies.com">www.whiteboxtechnologies.com</a>
(o) (925)388-0265
(c) (510)928-2683
"building energy simulations at your fingertips"
</pre>
<br>
On 3/22/2012 1:17 PM, Matt Clough wrote:
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<p> <span>In eQuest, can you create a custom system type? Is it
possible to create a different system type without having
access to the source code? For example how would you
represent a Variable Refrigerant Volume (VRV) system? </span>
</p>
<p> <span> </span> </p>
<p> <span>It came up in a discussion today and I didn’t have an
answer. </span> </p>
<p> <span> </span> </p>
<p> <span>Regards, </span> </p>
<p> <span>Matt Clough </span> </p>
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