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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Dear Forum,<br>Feedback requested, please! I’ve looked at some past posts on this general topic and think I am asking about aspects not previously discussed….<o:p></o:p></span></p><p style='margin-bottom:0in;margin-bottom:.0001pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>From previous posts and my own understanding:<o:p></o:p></span></p><p style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt;text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-size:11.0pt;font-family:Symbol;color:#1F497D'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>If one or more zones is not meeting its setpoint in a given hour, you have 1 unmet load hour. If 500 zones all fail to meet their setpoint in one hour, it’s till one unmet load hour.<o:p></o:p></span></p><p style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt;text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-size:11.0pt;font-family:Symbol;color:#1F497D'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Add all such hours in a year to obtain your total unmet load hours, which cannot exceed 8,760.<o:p></o:p></span></p><p style='margin-bottom:0in;margin-bottom:.0001pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I am now modeling a hotel with:<o:p></o:p></span></p><p style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt;text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-size:11.0pt;font-family:Symbol;color:#1F497D'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>“Massive” wall elements in the lower floors with moderate amounts of glass, “lightweight” construction in the upper floors with a lot of glass<o:p></o:p></span></p><p style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt;text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-size:11.0pt;font-family:Symbol;color:#1F497D'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Occupancy schedules that are all over the map for Office, Assembly / Meeting Rooms, Kitchen & Restaurant, and Guest Rooms<o:p></o:p></span></p><p style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt;text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-size:11.0pt;font-family:Symbol;color:#1F497D'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Individual HVAC systems for almost every occupancy type.<o:p></o:p></span></p><p style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:0in;margin-left:.5in;margin-bottom:.0001pt;text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-size:11.0pt;font-family:Symbol;color:#1F497D'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Presentation to all points of the compass, especially the Guest Tower, which is a 16-sided (roughly cylindrical) tower<o:p></o:p></span></p><p><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>This model is making my life very difficult trying to get unmet load hours below 300! As I think about why that is happening, it strikes me that the combination of mass, schedules and orientations are spreading the unmet loads around to different hours than is normal for many buildings. Can any of you share your thoughts about that perspective?<o:p></o:p></span></p><p><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Thanks!<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto'><b><span style='color:#1F497D'>ASHRAE 90.1-2007<o:p></o:p></span></b></p><p class=MsoNormal style='text-autospace:none'><b><i><span style='font-size:10.0pt;font-family:TimesNewRomanPS-BoldItalicMT'>unmet load hour: </span></i></b><span style='font-size:10.0pt;font-family:TimesNewRomanPSMT'>an hour in which one or more zones is outside of the thermostat setpoint range.</span><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><img width=336 height=192 id="Picture_x0020_1" src="cid:image003.jpg@01CCB0D5.51638120" alt="Description: Description: BPT BizCard JVDII Updated"><o:p></o:p></p><p class=MsoNormal><b><span style='font-size:10.0pt'><o:p> </o:p></span></b></p><p class=MsoNormal><span style='font-size:10.0pt'>The real measure of a person’s wealth is how much they’re worth after losing all their money.</span><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>