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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Hi Carol,<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'>Thanks for your response. Looking through the user manual,
RESFEN is based on DOE2.1e (nice call!) <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'>Resfen has 2 options to choose from: Gas Furnace+AC and
Electric Heat Pump. From what I read online (<a
href="http://windows.lbl.gov/software/resfen/faq/50_faq.htm#HVAC%20MODELING">http://windows.lbl.gov/software/resfen/faq/50_faq.htm#HVAC%20MODELING</a>)
RESFEN 5 does not model electric resistance heating, but rather models the
buildings with a Furnace+AC system and then converts the energy consumption using
expected heat pump performance to determine final electric consumption. I <i>think
</i>what you came across is the conversion from the furnace system to the heat
pump system. The website also takes into account the efficiency of the furnace
as it reverse-engineers the expected heat pump consumption. The efficiencies
are 70% for existing construction and 78% for new (which are similar to the
numbers you came up with).<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'>I may still be able to edit the piece of code that you describe
but as I’m also neither a programmer or a developer it makes me a little
nervous to do so.<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'>In any case, thanks for your response and if I have any success
I’ll share it with the list.<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'>Alex Krickx</span><o:p></o:p></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"'> Carol Gardner
[mailto:cmg750@gmail.com] <br>
<b>Sent:</b> Thursday, April 08, 2010 5:28 PM<br>
<b>To:</b> Alex Krickx<br>
<b>Cc:</b> bldg-sim@lists.onebuilding.org<br>
<b>Subject:</b> Re: [Bldg-sim] Resfen HVAC type<o:p></o:p></span></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Alex,<br>
<br>
With the caveat that I am not a programmer or a developer and with some
trepidation I will say I think I know where you should go at least. The first
part is a programming language, see above, but the last part looks like DOE2
BDL. It is probably from DOE2.1e since it's from LBNL. So going way back in the
memory banks and scrolling down, down, and further down there is something
labeled:<o:p></o:p></p>
<pre>##if #[Vintage[] eqs New ]<br>
FHIR=1.3550 CEIR=.3703 <br>
##elseif #[Vintage[] eqs Exist ]<br>
FHIR=1.5015 CEIR=.41667 <o:p></o:p></pre>
<p class=MsoNormal style='margin-bottom:12.0pt'><br>
I'm pretty sure that FHIR is what you want and if my memory serves, a big if,
it represents 1/eff so the first one, age New, would be 79.7%, and the second
one, age Exist, would be 66%. Since this kind of makes sense, I might be right!
If I'm not, hopefully someone who knows more will correct me.<br>
<br>
Maybe you can verify this by changing it. I've never used RESFEN myself.<br>
<br>
Let me know what happens.<br>
<br>
Carol<o:p></o:p></p>
<div>
<p class=MsoNormal>On Thu, Apr 8, 2010 at 3:46 PM, Alex Krickx <<a
href="mailto:akrickx@seriousmaterials.com">akrickx@seriousmaterials.com</a>>
wrote:<o:p></o:p></p>
<div>
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<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Hello
all,<o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>I
have a question about RESFEN that I’m hoping this list can help me get my
head around. RESFEN is developed and maintained by LBNL and I believe runs off
the DOE2 engine. The software is simple to use because of its limited inputs,
however I want to change one of those restricted inputs.<o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>I’m
trying to change the boiler performance which I <i>think </i>I can do by
editing the building description file (which RESFEN labels as a .d2 file).
I’ve attached the file and saved it in a .txt format for all to see.<o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>My
question is: Can someone proficient in the DOE2 language help me decipher where
and how to edit the efficiency of the boiler in the attached file? I
don’t know the part load, just that the boiler in question operates at
60% efficiency. If this is to broad a question please let me know and I will
attempt to clarify.<o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Thanks
in advance!<o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Alex
Krickx<o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='color:#262F13'>Alex Krickx</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:9.0pt;color:gray'>Building Energy Specialist</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:8.0pt;color:#1F497D'><img border=0 width=121 height=42
id="_x0000_i1030" src="cid:image001.jpg@01CAD7C1.7C152160" alt="email_sig"></span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:9.0pt'>1250 Elko Dr, Sunnyvale, CA 94089</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:9.0pt'>(t) 408.541.8124</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:9.0pt;color:gray'> </span><o:p></o:p></p>
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