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<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>I am modelling the cost benefits of creating chilled
water/ice at night so I have added a thermal storage tank and set up a
secondary chiller and loop to serve the storage tank. I have assigned an on/off
schedule to the TES chiller so that it operates only at night, but I have also
added equipment controls so that it has first priority for cooling. This was my
initial thought on getting it to operate at night but not during the day. I am
getting an error “Ice Water Loop has zero design flow”. At first I
figured this was because I had no size for the storage tank selected so I
started off small and through a 50 ton tank in the capacity field. Still
receiving the same error. Does this have to be sized manually?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Here are the controls:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>"Chiller Controls" =
EQUIP-CTRL <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>
TYPE =
COOLING<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'> CIRCULATION-LOOP = "Chilled Water <st1:place
w:st="on">Loop</st1:place>"<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>
CHILLERS-1 = ( "Ice Chiller" )<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>
CHILLERS-2 = ( "Air Cooled Chiller
1" )<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'> ..<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>and the tank<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>"Ice Storage" = THERMAL-STORAGE <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>
TYPE =
COLD-WATER-TANK<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>
CAPACITY = 600<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>
CHRG-LOOP = "Ice Water <st1:place
w:st="on">Loop</st1:place>"<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>
CHRG-SCH = "Ice Making
Schedule Annual"<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>
DCHRG-LOOP = "Chilled Water <st1:place
w:st="on">Loop</st1:place>"<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'> ..<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Thanks in advance<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal><b><font size=1 face=Arial><span lang=EN-GB
style='font-size:8.0pt;font-family:Arial;font-weight:bold'>Alan Jackson, LEED®
A.P. <o:p></o:p></span></font></b></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-GB style='font-size:
8.0pt;font-family:Arial'>Senior Mechanical Engineer<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-GB style='font-size:
8.0pt;font-family:Arial'>Buro Happold Consulting Engineers, PC<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-GB style='font-size:
8.0pt;font-family:Arial'>100 Broadway <o:p></o:p></span></font></p>
<p class=MsoNormal><st1:place w:st="on"><st1:City w:st="on"><font size=1
face=Arial><span lang=EN-GB style='font-size:8.0pt;font-family:Arial'>New
York</span></font></st1:City><font size=1 face=Arial><span lang=EN-GB
style='font-size:8.0pt;font-family:Arial'>, <st1:State w:st="on">NY</st1:State>
<st1:PostalCode w:st="on">10005</st1:PostalCode></span></font></st1:place><font
size=1 face=Arial><span lang=EN-GB style='font-size:8.0pt;font-family:Arial'><o:p></o:p></span></font></p>
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8.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-GB style='font-size:
8.0pt;font-family:Arial'>Tel: (+1) 212 334 2025<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-GB style='font-size:
8.0pt;font-family:Arial'>Direct: (+1) 212 616 0267<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-GB style='font-size:
8.0pt;font-family:Arial'>Fax: (+1) 212 334 5528<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-GB style='font-size:
8.0pt;font-family:Arial'>Email: <a
href="mailto:alan.jackson@burohappold.com"
title="mailto:alan.jackson@burohappold.com">alan.jackson@burohappold.com</a><br>
<a href="http://www.burohappold.com/" title="http://www.burohappold.com/">www.burohappold.com</a><o:p></o:p></span></font></p>
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