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Carolina,<br>
Type2 models a controller that only has an ON and and OFF position. As
soon as the pump turns on, it outputs its full flow. If you need a pump
whose flow will vary, you need to use a controller (or an equation)
that generates a signal between 0 and 1 that is proportional to the
speed at which you want to run the pump.<br>
Kind regards,<br>
David<br>
<br>
<br>
Carolina Belli wrote:
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<p class="MsoNormal" style="margin-top: 12pt;"><span
style="font-size: 10pt; font-family: "Courier New";" lang="EN-US">Hi,I’m
a new user of TRNSYS, for my thesis<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 10pt; font-family: "Courier New";" lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 10pt; font-family: "Courier New";" lang="EN-US">I
have to simulate a solar desalination plant. For the solar collector I
use type
73 (flate plate), but I have a problem with the value of the T out: it
reach
above 100°C. <o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 10pt; font-family: "Courier New";" lang="EN-US">The
solar circuit is: flat plate collector (type 73) – storage tank (type
4e) –
single variable pump. There is also a controller (type 2b) to control
the
on/off of the pump. I connect the Th of type 2b with Tout of the
collector, and
Tl of type 2b with the Tout of the storage tank. The problem is when
the pump
have to start or to stop: the flow rate rapidly increase/ decrease from
0 to
the set value (and vice versa).<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 10pt; font-family: "Courier New";" lang="EN-US">I
try to decrease the flow through the collector but I can’t manage to
solve the
problem of the Tout of the panel. <o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 10pt; font-family: "Courier New";" lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 10pt; font-family: "Courier New";">With
many thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 10pt; font-family: "Courier New";"> <o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 10pt; font-family: "Courier New";">Carolina<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size: 10pt; font-family: "Courier New";"><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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