<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:10pt"><div>Hi Lars,</div><div> </div><div>My building is located in a cold climate. winter temperature is between -10 and 10 oC. And I just have energy demand for heating the building, there is no cooling. </div><div> </div><div>In insulation schenario there is not too much negative values but when I change double glass with triple glass there are too much negative values, that is 5% of the hours energy demand in triple glass is more than in double glass, during one year.</div><div> </div><div>In fact I also tried this in a very simple model with one room, in order to see if I have something wrong with my model, I also had some negative values in triple glass schenario.</div><div> </div><div>Thanks for your help</div><div>iyi çalışmalar </div><div>Best
wishes</div><div> </div><div>Gul</div><div> </div><div style="display: block;" class="yahoo_quoted"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 10pt;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12pt;"> <div dir="ltr"> <font size="2" face="Arial"> 21 Nis 2014 18:29 Pazartesi tarihinde Lars O. Grobe <grobe@gmx.net> şöyle yazdı:<br> </font> </div> <div>Hi Gül,<br clear="none"><br clear="none">where is the building located, and what kind of energy demand do you<br clear="none">observe? If you have an actively-cooled building in a climate with high<br clear="none">temperatures during the day and low temperatures during the night,<br clear="none">increasing the insulation without air exchange during night hours might<br clear="none">actually lead to an increase in energy demand. So a controlled<br
clear="none">ventilation should drastically improve this...<br clear="none"><br clear="none">Cheers, iyi çalışmalar,<br clear="none">Lars.<div id="yqtfd86579"><br clear="none"><br clear="none">> Dear All,<br clear="none">> <br clear="none">> My question is about enegy saving when changing the glass or insulation<br clear="none">> material in a model house.<br clear="none">> <br clear="none">> I have done some schenarios. For example, the model house has 12 mm air<br clear="none">> filled double glass, and I changed this material with 12 mm air filled<br clear="none">> triple glass. And in another schenario I changed the thickness of<br clear="none">> insulation material. The model house has 80 mm insulation and I changed<br clear="none">> this with 120 mm insulation, also I changed the "k" value of insulation<br clear="none">> material.<br clear="none">> <br clear="none">> I compared the hourly
simulation results. In some hours,<br clear="none">> <br clear="none">> -energy consumption of the model in triple glass was more than the<br clear="none">> energy consumption in double glass<br clear="none">> -energy consumption of the model in 120 mm insulation was more than the<br clear="none">> energy consumption in 80 mm insulation.<br clear="none">> <br clear="none">> Is it possible? or does it mean that there is something wrong in the model?<br clear="none">> <br clear="none">> Thank you so much for your help.<br clear="none">> <br clear="none">> Best<br clear="none">> <br clear="none">> Gul</div><br clear="none"><br clear="none"><br clear="none">_______________________________________________<br clear="none">esp-r mailing list<br clear="none"><a href="mailto:esp-r@lists.strath.ac.uk" shape="rect" ymailto="mailto:esp-r@lists.strath.ac.uk">esp-r@lists.strath.ac.uk</a><br
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