<html><body><div style="font-family: trebuchet ms,sans-serif; font-size: 10pt; color: #000000"><div>Hi,<br></div><div><br data-mce-bogus="1"></div><div>I'm assessing the risk of overheating in a meeting room that have indirect T5 lamps installed.<br data-mce-bogus="1"></div><div>I'm encoding that on DesignBuilder which determines the heat gains provided by lighting by specifying the convective and radiative part from the power density.<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>The visible part is 18%, the radiant fraction is 42% and the convective part is 40% according to the software. I find that the figures put in DesignBuilder are a bit exagerated.<br data-mce-bogus="1"></div><div>Therefore, I'm looking for a document that describes the fraction that goes into visible light, radiation and convection per type of lamps.<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>Can someone help me by sharing this information?<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>Thanks in advance,<br data-mce-bogus="1"></div><div><br></div><div data-marker="__SIG_PRE__"><div><span style="font-family: Verdana,Helvetica,sans-serif; font-size: small;" data-mce-style="font-family: Verdana,Helvetica,sans-serif; font-size: small;" face="Verdana, Helvetica, sans-serif" size="2"><span style="color: #000000;" data-mce-style="color: #000000;" color="#000000">Regards,<br data-mce-bogus="1"></span></span></div><div><span style="font-family: Verdana,Helvetica,sans-serif; font-size: small;" data-mce-style="font-family: Verdana,Helvetica,sans-serif; font-size: small;" face="Verdana, Helvetica, sans-serif" size="2"><span style="color: #000000;" data-mce-style="color: #000000;" color="#000000"><strong><br data-mce-bogus="1"></strong></span></span></div><div><span style="font-family: Verdana,Helvetica,sans-serif; font-size: small;" data-mce-style="font-family: Verdana,Helvetica,sans-serif; font-size: small;" face="Verdana, Helvetica, sans-serif" size="2"><span style="color: #000000;" data-mce-style="color: #000000;" color="#000000"><strong>Nassim Jamali</strong><br></span><span style="color: #666666;" data-mce-style="color: #666666;" color="#666666"><strong></strong></span></span><span style="font-family: Verdana,Helvetica,sans-serif; font-size: small;" data-mce-style="font-family: Verdana,Helvetica,sans-serif; font-size: small;" face="Verdana, Helvetica, sans-serif" size="2"><span style="color: #666666;" data-mce-style="color: #666666;" color="#666666"><strong><span style="font-family: Verdana,Helvetica,sans-serif; font-size: small;" data-mce-style="font-family: Verdana,Helvetica,sans-serif; font-size: small;" face="Verdana, Helvetica, sans-serif" size="2"><span style="color: #666666;" data-mce-style="color: #666666;" color="#666666"><strong>Building Performance </strong></span></span>Consultant <br><br></strong></span></span><span style="font-family: Verdana,Arial,Helvetica,sans-serif; font-size: small;" data-mce-style="font-family: Verdana,Arial,Helvetica,sans-serif; font-size: small;" face="Verdana, Arial, Helvetica, sans-serif" size="2"><span style="color: #666666;" data-mce-style="color: #666666;" color="#666666"><span style="font-size: xx-small;" data-mce-style="font-size: xx-small;" size="1"><span style="white-space: pre;" data-mce-style="white-space: pre;"></span></span></span></span><span style="color: #000000; font-family: Verdana,Arial,Helvetica,sans-serif; font-size: small;" data-mce-style="color: #000000; font-family: Verdana,Arial,Helvetica,sans-serif; font-size: small;" color="#000000" face="Verdana, Arial, Helvetica, sans-serif" size="2"><span style="color: #666666; font-size: xx-small;" data-mce-style="color: #666666; font-size: xx-small;" color="#666666" size="1"><strong>t</strong> +32 (0)2 468 11 58<span style="white-space: pre;" data-mce-style="white-space: pre;"><span style="white-space: pre;" data-mce-style="white-space: pre;"></span><span style="white-space: pre;" data-mce-style="white-space: pre;"></span></span><span style="white-space: pre;" data-mce-style="white-space: pre;"></span><strong><br>f</strong> +32 (0)2 468 11 78 <span style="white-space: pre;" data-mce-style="white-space: pre;"> </span></span></span><br><span style="font-family: Verdana,Arial,Helvetica,sans-serif; font-size: small;" data-mce-style="font-family: Verdana,Arial,Helvetica,sans-serif; font-size: small;" face="Verdana, Arial, Helvetica, sans-serif" size="2"><span style="color: #666666;" data-mce-style="color: #666666;" color="#666666"><span style="font-size: xx-small;" data-mce-style="font-size: xx-small;" size="1">noordkustlaan <span class="Object" id="OBJ_PREFIX_DWT1184_com_zimbra_gmaps">10, 1702 groot-bijgaarden, belgium</span></span></span></span><span style="color: #000000; font-family: Verdana,Arial,Helvetica,sans-serif; font-size: small;" data-mce-style="color: #000000; font-family: Verdana,Arial,Helvetica,sans-serif; font-size: small;" color="#000000" face="Verdana, Arial, Helvetica, sans-serif" size="2"><span style="color: #666666; font-size: xx-small;" data-mce-style="color: #666666; font-size: xx-small;" color="#666666" size="1"></span></span></div><div><span style="color: #000000; font-family: Verdana,Arial,Helvetica,sans-serif; font-size: small;" data-mce-style="color: #000000; 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