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Hi gang. Sharkey suggest folks might find this forum exchange on Diesel
idling interesting:<br><br>
<blockquote type=cite class=cite cite="">I thought the some members of
the list might benefit from reading a very comprehensive post on my
forum:<br><br>
<a href="http://www.mrsharkey.com/forum/vwtp.php?t=375" eudora="autourl">
http://www.mrsharkey.com/forum/vwtp.php?t=375</a> </blockquote><br><br>
Darryl Thayer wrote at 07:29 AM 6/18/2010:<br>
<br>
<blockquote type=cite class=cite cite="">Hi The load issue with Diesels
is most stand by diesels are started once per month, and run for a period
of time, this is at light load. If the Diesel is not worked hard
the rings lose there seal ie compression falls and makes them hard to
start. Therefore they are load tested on various schedules for
engine and other operating conditions,<br>
<br>
Darryl <br><br>
--- On <b>Fri, 6/18/10, Mick Abraham
<i><mick@abrahamsolar.com></i></b> wrote:<br>
<dl><br>
<dd>From: Mick Abraham <mick@abrahamsolar.com><br>
<dd>Subject: Re: [RE-wrenches] Additional Battery Charger<br>
<dd>To: "RE-wrenches"
<re-wrenches@lists.re-wrenches.org><br>
<dd>Date: Friday, June 18, 2010, 7:35 AM<br><br>
<dd>I definitely like to require the generator to work hard for every
hour in which we must listen to it, feed fuel to it, etc. (This
presupposes that we have plenty of battery to accept genset wattage
<minus altitude derations> <minus charger inefficiency>
<minus a bit of breathing room for the engine>) <br><br>
<dd>Also: that 50 hour oil change interval...or 100 hours...or
whatever...comes around right regular and we want to wring out lots of
watt-hours between service dates. <br><br>
<dd>******************************<br><br>
<dd>There's an old...dare I say it...wive's tale about diesel machines
actually suffering shorter lifetimes if they are not heavily loaded. I
think this belief goes way back to WWII days and may not be valid with
current engine designs. It's something about the load torque requirement
helping to maintain engine compression. Opinions from the List on this
theory would be welcomed.<br><br>
<dd>*******************************<br><br>
<dd>Once you have plenty of charger load to throw on the generator, tweak
up on the "AC input amps" setting in the Outback Mate or Magnum
Remote while listening to the engine. (The battery must not be highly
charged during this tweak or else the chargers will be in throttle back
mode.) Dial up on the AC input amps setting while also causing major
household loads (such as the water pump, washing machine, etc.) to kick
in & out. Up, up, up until the generator engine can be heard to
struggle beneath the load, then dial back down on the AC input amps until
the gennie sounds happy with its work again. <br><br>
<dd>Jolliness, <br><br>
<dd>Mick Abraham, Proprietor<br>
<dd><a href="http://www.abrahamsolar.com/">www.abrahamsolar.com</a><br>
<br>
<dd>Voice: 970-731-4675<br><br>
<br>
<dd>On Thu, Jun 17, 2010 at 11:13 PM, benn kilburn
<<a href="http://us.mc519.mail.yahoo.com/mc/compose?to=benn@daystarsolar.ca">
benn@daystarsolar.ca</a>> wrote:<br>
<dl>
<dd>mick, bob, <br><br>
<dd>funny you should mention using a magnum as the 'additional charger',
the system owner just happens to still have a MS4448 on the wall from his
original system (we had upgraded his system to a FW1000 with 2 x
VFX3648's back in the fall).<br><br>
<dd>i hadn't even thought of using the magnum only as a charger, and the
price is right!<br>
<dd>thanks for the suggestion, i'll look into this as a
possibility.<br><br>
<dd>Any other comments on my question about generator efficiency when
fully loaded vs say half loaded?<br><br>
<dd>cheers<br>
<dd>benn<br><br>
<dd>DayStar Renewable Energy Inc. <br>
<dd>
<a href="http://us.mc519.mail.yahoo.com/mc/compose?to=benn@daystarsolar.ca">
benn@daystarsolar.ca</a><br>
<dd>780-906-7807 <br>
<dd>HAVE A SUNNY DAY <br><br>
<br>
<hr>
<dd>From:
<a href="http://us.mc519.mail.yahoo.com/mc/compose?to=reellison@gmail.com">
reellison@gmail.com</a><br>
<dd>To:
<a href="http://us.mc519.mail.yahoo.com/mc/compose?to=re-wrenches@lists.re-wrenches.org">
re-wrenches@lists.re-wrenches.org</a><br>
<dd>Date: Thu, 17 Jun 2010 21:19:03 -0400<br>
<dd>Subject: Re: [RE-wrenches] Additional Battery Charger <br><br>
<br>
<dd><font face="Calibri" size=4>Look into the Magnum inverters as
2nd</sup> chargers, very good chargers with generators.<br>
<dd> <br>
<dd>I have done this many times, in the case of failure of the other
inverters for some reason, run wires and be back up and running.<br>
<dd>I think the 4448 inverter is 60 amps @ 48 volts with an input of 16
or so amps AC.<br>
<dd> <br>
<dd>Later,<br>
<dd>Bob <br>
<dd> <br>
</font>
<dd><font face="Tahoma" size=2>From:</b>
<a href="http://us.mc519.mail.yahoo.com/mc/compose?to=re-wrenches-bounces@lists.re-wrenches.org">
re-wrenches-bounces@lists.re-wrenches.org</a>
[<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org" eudora="autourl">
mailto:re-wrenches-bounces@lists.re-wrenches.org</a>] On Behalf Of
</b>benn kilburn<br>
<dd>Sent:</b> Thursday, June 17, 2010 7:22 PM<br>
<dd>To:</b> Wrenches<br>
<dd>Subject:</b> [RE-wrenches] Additional Battery Charger<br>
</font>
<dd><font face="Times New Roman, Times"> <br>
</font>
<dd><font face="Verdana" size=2>G'day Wrenches,<br>
<dd> <br>
<dd> I'm looking for an additional charger(s) to increase the
charging capacity from the back-up 12 kW Onan generator into the 1200 Ah
battery. Right now the generator's full potential output is limited
by the charging capacity of the two VFX3648's which have a max charge
output of 45A each.<br>
<dd> <br>
<dd>The idea here is to use the generator to its full charging capacity
when it is running, taking in to consideration that the generator will
feed any AC loads before charging the battery. <br>
<dd> <br>
<dd>Iota and IBE chargers have been suggested. Any comments on
these or other makes?<br>
<dd> <br>
<dd>Do all generator types (diesel, propane, LNG, gasoline) run more
efficiently when fully loaded? or is this only the case with diesel
(so i've heard)?<br>
<dd> <br>
<dd>thanks,<br>
<dd>benn<br>
</font>
<dd><font face="Verdana" size=2 color="#002060">DayStar Renewable Energy
Inc. <br>
</font>
<dd>
<a href="http://us.mc519.mail.yahoo.com/mc/compose?to=benn@daystarsolar.ca">
benn@daystarsolar.ca</a><br>
<dd>780-906-7807 <br>
<dd>HAVE A SUNNY DAY <br>
<dd> <br>
<dd><font face="Arial Narrow, Helvetica" size=1 color="#00B050">
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