What is a good width for the SLO? - Aquaponic Gardening2024-03-29T05:12:23Zhttps://aquaponicgardening.ning.com/forum/topics/what-is-a-good-width-for-the-slo?commentId=4778851%3AComment%3A604723&x=1&feed=yes&xn_auth=noHi Jose -
I don't think the…tag:aquaponicgardening.ning.com,2015-05-01:4778851:Comment:6047232015-05-01T08:08:58.267ZPieter Swanevelderhttps://aquaponicgardening.ning.com/profile/PieterSwanevelder
<p>Hi Jose -</p>
<p></p>
<p>I don't think the CHOP2 System is under pressure - you should rather think about constant volume flow - thus the inflow and outflow should equal for a said time period. You'll also T-off some of your flow to your grow beds - so the 300gph I've used will probably be more like 200gph -</p>
<p></p>
<p>You can ignore the figures - I just wanted to check it the outflow (Qout) can handle the inflow (Qin) - according to the model your ouput could handle about 8x your input.…</p>
<p>Hi Jose -</p>
<p></p>
<p>I don't think the CHOP2 System is under pressure - you should rather think about constant volume flow - thus the inflow and outflow should equal for a said time period. You'll also T-off some of your flow to your grow beds - so the 300gph I've used will probably be more like 200gph -</p>
<p></p>
<p>You can ignore the figures - I just wanted to check it the outflow (Qout) can handle the inflow (Qin) - according to the model your ouput could handle about 8x your input. BUT:-</p>
<p>It is not a very good model as it ignores pipe friction (larger diameter pipes has less) as well as build up of residue (for larger diameter pipes the effect of build up is less). So - in short - you probably need to experiment a bit as most systems differ due to layout restrictions. Slow bends is better than right angles and so.</p>
<p></p>
<p>I've had issues with clogging in my experimental setup - residue build up, earthworm colonies, etc - so be prepared to be 'flexible'.</p>
<p></p>
<p>Enjoy!</p>
<p></p>
<p></p> Pieter, I have decided to use…tag:aquaponicgardening.ning.com,2015-04-30:4778851:Comment:6046222015-04-30T16:45:40.095ZJosé Méndezhttps://aquaponicgardening.ning.com/profile/JoseMendez
<p>Pieter, I have decided to use 1" thinwall tubing, and as you said, if the water pressure into the fish tank is greater than what the outlet can handle, then the return line in the sump tank will have to kick in. I don't really see what would be the use of an enormous width for the SLO, other than allow the incoming water flow to exit fast enough to avoid the fish tank to overflow in unwanted ways. I think as long as there is enough pressure to fill up the outlet, the solids will move out…</p>
<p>Pieter, I have decided to use 1" thinwall tubing, and as you said, if the water pressure into the fish tank is greater than what the outlet can handle, then the return line in the sump tank will have to kick in. I don't really see what would be the use of an enormous width for the SLO, other than allow the incoming water flow to exit fast enough to avoid the fish tank to overflow in unwanted ways. I think as long as there is enough pressure to fill up the outlet, the solids will move out effectively. The return line is important to help balance the pressure through the subsystems (fish tank, growbeds and sump tank).</p>
<p>Now, I don't know how to read those numbers. Are those in a table format? what are the "Q"s?</p>
<p></p> Hi José
'First order the 1"…tag:aquaponicgardening.ning.com,2015-04-30:4778851:Comment:6044882015-04-30T07:54:20.560ZPieter Swanevelderhttps://aquaponicgardening.ning.com/profile/PieterSwanevelder
<p>Hi José</p>
<p></p>
<p>'First order the 1" seems to do the job - but you'll also need to consider ease of maintenance</p>
<p>Note the outlet is gravity feed and the outlet must be able to handle the inflow - else you'll need an overflow return line (good precaution)</p>
<p></p>
<p>Enjoy!…</p>
<p></p>
<table border="0" cellspacing="0" width="547">
<colgroup><col width="99"></col></colgroup><colgroup><col span="7" width="64"></col></colgroup><tbody><tr><td height="19" width="99"></td>
</tr>
</tbody>
</table>
<p>Hi José</p>
<p></p>
<p>'First order the 1" seems to do the job - but you'll also need to consider ease of maintenance</p>
<p>Note the outlet is gravity feed and the outlet must be able to handle the inflow - else you'll need an overflow return line (good precaution)</p>
<p></p>
<p>Enjoy!</p>
<p></p>
<table width="547" border="0" cellspacing="0">
<colgroup><col width="99"></col></colgroup><colgroup><col width="64" span="7"></col></colgroup><tbody><tr><td width="99" height="19"></td>
<td width="64"></td>
<td width="64"></td>
<td width="64"></td>
<td width="64"></td>
<td width="64"></td>
<td width="64"></td>
<td width="64"></td>
</tr>
<tr><td height="19"><font face="Calibri" size="3">Flow in</font></td>
<td><font face="Calibri" size="3">Qin</font></td>
<td><font face="Calibri" size="3">g/h</font></td>
<td align="right"><font face="Calibri" size="3">300 </font></td>
<td colspan="4"><font face="Calibri" size="3">from pump Q-head graph - head: - 2m</font></td>
</tr>
<tr><td height="19"></td>
<td></td>
<td><font face="Calibri" size="3">m^3/h</font></td>
<td align="right"><font face="Calibri" size="3">1.02</font></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr><td height="19"></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr><td height="19"><font face="Calibri" size="3">Flow out</font></td>
<td><font face="Calibri" size="3">Qout</font></td>
<td><font face="Calibri" size="3">m^3/h</font></td>
<td align="right"><font face="Calibri" size="3">7.840036</font></td>
<td><font face="Calibri" size="3">> Qin</font></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr><td height="19"><font face="Calibri" size="3">Pipe diameter</font></td>
<td><font face="Calibri" size="3">D</font></td>
<td><font face="Calibri" size="3">m</font></td>
<td align="right"><font face="Calibri" size="3">0.0225</font></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr><td height="19"><font face="Calibri" size="3">effective height</font></td>
<td><font face="Calibri" size="3">h</font></td>
<td><font face="Calibri" size="3">m</font></td>
<td align="right"><font face="Calibri" size="3">1.5</font></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr><td height="19"><font face="Calibri" size="3">gravity acc</font></td>
<td><font face="Calibri" size="3">g</font></td>
<td><font face="Calibri" size="3">m/s^2</font></td>
<td align="right"><font face="Calibri" size="3">10</font></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr><td height="19"><font face="Calibri" size="3">time conversion</font></td>
<td><font face="Calibri" size="3">t</font></td>
<td><font face="Calibri" size="3">s/hr</font></td>
<td align="right"><font face="Calibri" size="3">3600</font></td>
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</tr>
<tr><td height="19"></td>
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</tr>
<tr><td height="19"><font face="Calibri" size="3">Potensial energy</font></td>
<td><font face="Calibri" size="3">Ep</font></td>
<td></td>
<td><font face="Calibri" size="3">m.g.h</font></td>
<td></td>
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</tr>
<tr><td height="19"><font face="Calibri" size="3">Kinetic Energy</font></td>
<td><font face="Calibri" size="3">Ev</font></td>
<td></td>
<td colspan="2"><font face="Calibri" size="3">1/2.m.v^2</font></td>
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</tr>
<tr><td height="19"><font face="Calibri" size="3">Pipe Area</font></td>
<td><font face="Calibri" size="3">A</font></td>
<td></td>
<td><font face="Calibri" size="3">pi.(D/2)^2</font></td>
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</tr>
<tr><td height="19"><font face="Calibri" size="3">Flow velocity</font></td>
<td><font face="Calibri" size="3">v</font></td>
<td></td>
<td><font face="Calibri" size="3">sqrt (2gh)</font></td>
<td><font face="Calibri" size="3"> for Ep=Ek</font></td>
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</tr>
<tr><td height="19"><font face="Calibri" size="3">Flow Out</font></td>
<td><font face="Calibri" size="3">Qout</font></td>
<td></td>
<td><font face="Calibri" size="3">t.A.v</font></td>
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</tr>
</tbody>
</table>