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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Dear all,</span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I am trying to control a ventilation system using the inlet
temperature </span></font><font size=2 face=Arial><span style='font-size:10.0pt;
 font-family:Arial'>(in this case ambient air temperature)</span></font><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> into the
system. For example the volumetric flow rate should be set to zero or certain
value if the temperature remains within a range of values </span></font><font
 size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>(16-30 ºC
 and -10-5 ºC)</span></font><font size=2 face=Arial><span style='font-size:
10.0pt;font-family:Arial'>. I will appreciate any ideas on how to achieve this.</span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thank you.</span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Abdullahi</span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>

<p class=MsoNormal><font size=3 color=blue face="Times New Roman"><span
style='font-size:12.0pt;color:blue'>Abdullahi Ahmed </span></font><font size=1
 color=blue><span style='font-size:8.0pt;color:blue'>(BSc. MSc.)</span></font><font
size=1 color=blue><span style='font-size:8.0pt;color:blue'> Postgraduate
researcher</span></font></p>

<p class=MsoNormal><font size=2 color=blue face="Times New Roman"><span
lang=EN-US style='font-size:10.0pt;color:blue'>School of the Environment</span></font></p>

<p class=MsoNormal><font size=2 color=blue face="Times New Roman"><span
  lang=EN-US style='font-size:10.0pt;color:blue'>University</span></font><font
 size=2 color=blue><span lang=EN-US style='font-size:10.0pt;color:blue'> of </span></font><font
  size=2 color=blue><span lang=EN-US style='font-size:10.0pt;color:blue'>Brighton</span></font></p>

<p class=MsoNormal><font size=2 color=blue face="Times New Roman"><span
  lang=EN-US style='font-size:10.0pt;color:blue'>Cockcroft</span></font><font
 size=2 color=blue><span lang=EN-US style='font-size:10.0pt;color:blue'> </span></font><font
  size=2 color=blue><span lang=EN-US style='font-size:10.0pt;color:blue'>Building</span></font></p>

<p class=MsoNormal><font size=2 color=blue face="Times New Roman"><span
  lang=EN-US style='font-size:10.0pt;color:blue'>Lewes Rd.</span></font></p>

<p class=MsoNormal><font size=2 color=blue face="Times New Roman"><span
 lang=EN-US style='font-size:10.0pt;color:blue'>Brighton</span></font></p>

<p class=MsoNormal><font size=2 color=blue face="Times New Roman"><span
lang=EN-US style='font-size:10.0pt;color:blue'>BN2 4GJ</span></font></p>

<p class=MsoNormal><font size=2 color=blue face="Times New Roman"><span
lang=EN-US style='font-size:10.0pt;color:blue'> </span></font></p>

<p class=MsoNormal><font size=2 color=blue face="Times New Roman"><span
lang=EN-US style='font-size:10.0pt;color:blue'>Tel: +44 01273 643455</span></font></p>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> </span></font></p>

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