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Meriem,<br>
I think you can use Type536 itself but you need to make sure of a
few things. First, make sure that you account for the capacitance of
the collector and use a short time step. If you run a pump to put
hot fluid into the collector then turn off the pump, the liquid is
going to get hot very very quickly (both in the simulation and in
reality). Second, you need to fully define your control strategy.
For example what happens after you extract the liquid; does another
batch go in and start heating?<br>
<br>
If you have access to the TESS Controls library you can use
Type980 (on/off time calculator) for the timer between "filling" and
"extracting" If you don't then I think you can use an integrator
(Type24) and the built-in variable TIME.<br>
Kind regards,<br>
David<br>
<br>
<br>
<div class="moz-cite-prefix">On 3/12/2014 04:51, MERIEM SOUSSI
wrote:<br>
</div>
<blockquote
cite="mid:1394617881.59468.YahooMailNeo@web172702.mail.ir2.yahoo.com"
type="cite">
<div style="color:#000; background-color:#fff;
font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial,
Lucida Grande, sans-serif;font-size:12pt">
<div id="yiv1382881669">
<div>
<div style="color: rgb(0, 0, 0); background-color: rgb(255,
255, 255); font-family: HelveticaNeue, 'Helvetica Neue',
Helvetica, Arial, 'Lucida Grande', sans-serif; font-size:
12pt;">
<div id="yiv1382881669yui_3_13_0_ym1_7_1394609119629_8"><span
id="yiv1382881669yui_3_13_0_ym1_7_1394609119629_40">Dear
Trnsys users,</span></div>
<div id="yiv1382881669yui_3_13_0_ym1_7_1394609119629_8"><span>Is
it possible to model a solar collector with a fixed
outlet flowrate at a precise time?</span></div>
<div id="yiv1382881669yui_3_13_0_ym1_7_1394609119629_8"
style="color: rgb(0, 0, 0); font-size: 16px;
font-family: HelveticaNeue, 'Helvetica Neue', Helvetica,
Arial, 'Lucida Grande', sans-serif; background-color:
transparent; font-style: normal;"><span
id="yiv1382881669yui_3_13_0_ym1_7_1394609119629_43">Actually,
I want to analyse the effect of storing the hot
solution in a parabolic </span><span style="font-size:
12pt;">concentrating </span><span
style="background-color: transparent;">collector (type
536) . So, I don't need hourly results. I want to fill
the solar collector with the hot solution in the early
morning, then extract it after a period of time.</span></div>
<div id="yiv1382881669yui_3_13_0_ym1_7_1394609119629_8"
style="color:rgb(0, 0,
0);font-size:16px;font-family:HelveticaNeue, 'Helvetica
Neue', Helvetica, Arial, 'Lucida Grande',
sans-serif;background-color:transparent;font-style:normal;"
class="yui_3_13_0_ym1_1_1394617159712_2588"><span
style="background-color: transparent;">How can I do
it, and with which types?</span><br>
</div>
<div id="yiv1382881669yui_3_13_0_ym1_7_1394609119629_8"
style="color:rgb(0, 0,
0);font-size:16px;font-family:HelveticaNeue, 'Helvetica
Neue', Helvetica, Arial, 'Lucida Grande',
sans-serif;background-color:transparent;font-style:normal;"
class="yui_3_13_0_ym1_1_1394617159712_2588"><span
style="background-color: transparent;">Thank you in
advance for any help.</span></div>
<div id="yiv1382881669yui_3_13_0_ym1_1_1394609119629_4305">Cordially<br
id="yiv1382881669yui_3_13_0_ym1_7_1394609119629_32">
<br id="yiv1382881669yui_3_13_0_ym1_7_1394609119629_34">
<font
id="yiv1382881669yui_3_13_0_ym1_7_1394609119629_36"
color="#0060bf" face="garamond, new york, times,
serif" size="4">Meriem SOUSSI<br>
<br>
</font></div>
</div>
</div>
</div>
</div>
<br>
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<br>
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</blockquote>
<br>
<pre class="moz-signature" cols="72">--
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI 53703 USA
P:+1.608.274.2577
F:+1.608.278.1475
<a class="moz-txt-link-abbreviated" href="mailto:d.bradley@tess-inc.com">d.bradley@tess-inc.com</a>
<a class="moz-txt-link-freetext" href="http://www.tess-inc.com">http://www.tess-inc.com</a>
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