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<div class=Section1>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Hi Minhwan Kim<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 lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>some data from various sources:<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span
lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><span style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span lang=EN-US style='font-size:11.0pt;
font-family:"Calibri","sans-serif";color:#1F497D'>You can assume that the
electricity is converted to heat for small power. 250 W specification = 250 W
internal gain as long as it is running. If any small power source has a “standby
mode”, the specs usually also give the wattage for this. Again, this wattage
can be assumed to be injected into the zone as sensible heat. The “convective /
radiative” split is approx 60c, 40r, typically (depends on casing etc. , a PC
will typically have even more convective, as the casing usually does not get
very warm. A Laptop will have more radiative, possibly).<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span
lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><span style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span lang=EN-US style='font-size:11.0pt;
font-family:"Calibri","sans-serif";color:#1F497D'>Attached is (hopefully) a
graph (“Wärmeabgabe” = heat gain, “Strahlung” = radiation, “Wärmeleitung” =
conduction and “Verdunstung” = latent). The range between 19 and 30 degC “Lufttemperatur”
= air temperature is the region of interest, of course. Here overall heat is
approx. 120 W/Person with the temperature dependant split as given in the
graph. This can be scaled to other heat gains, e.g. 131 W for “normal office
work” [Zürcher et. al., 2003].<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><span
lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><span style='mso-list:Ignore'>3.<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span lang=EN-US style='font-size:11.0pt;
font-family:"Calibri","sans-serif";color:#1F497D'>According to Swiss recommendations:
10 – 12 W/m2 installed is good (currently) and 15 – 18 W/m2 is easily reached
when not carefully designed.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Best regards<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Achim<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US 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'><img width=322 height=296 id="Picture_x0020_1"
src="cid:image003.jpg@01CA166E.77CF7A20"></span><span lang=EN-US
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US 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 0cm 0cm 0cm'>
<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> esp-r-bounces@lists.strath.ac.uk
[mailto:esp-r-bounces@lists.strath.ac.uk] <b>On Behalf Of </b>???<br>
<b>Sent:</b> Mittwoch, 5. August 2009 20:20<br>
<b>To:</b> esp-r@lists.strath.ac.uk<br>
<b>Subject:</b> [esp-r] casual gain input standard<o:p></o:p></span></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Hi all~<o:p></o:p></p>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal>We are looking for any standards or typical practice for<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal>1. conversion factor from electric power of appliance (e.g.
personal computer) to casual gain<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal>2. ratio of sensible and latent heat in occupants casual
gains<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal>3. typical lighting casual gains in office or in laboratory.<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal>cuz there is almost no standards in Korea yet regarding this
issue.<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal>Any hints or idea will be very much appreciated.<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal>Thank you in advance.<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<div>
<p class=MsoNormal>Minhwan Kim<br clear=all>
<br>
-- <br>
Researcher,<br>
Integrated Simulation Team, DASS consultants Ltd.<br>
<br>
632-9 Guui 1(il)-dong Gwangjin-gu Seoul (143-834 Korea) <br>
T. 82.2.913.2585/ F. 82.2.949.2585/ H. <a href="http://www.dasskorea.com">www.dasskorea.com</a><o:p></o:p></p>
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