I guess you didn't read the abstract which says that settling time IS
also reduced with ultrasonics (although I don't understand the
mechanism or how that works).
Joe
Tonomár András wrote:
Joe,
In my well isolated reactor the tempreture stays above 55 deg for 3 hours.
so the amount of enregy needed goes in with the initial heating and this is
independent from
how long I process my fuel. In fact I use mechanical stirrer wich means
there is no heat loss
in the tubes outside tubes, and the mechanical energy remains in the reactor
also as heat.
Other thing is that the reaction time is 10 or 60 or 120 minutes doesn't
matter.
the reason is that you have to settle for 12 - 24 hours anyway.
in my point of view speeding up the settling would be something much more
logical direction to go.
Another reason for this is that the 2 stage mathods require a re-heating,
which could be avoided
if separation was compete in 1 hour vs. 24 hours
Keep going
Andrew
----- Original Message -----
From: "Joe Street" <[EMAIL PROTECTED]>
To: <Biofuel@sustainablelists.org>
Sent: Friday, March 31, 2006 3:49 PM
Subject: Re: [Biofuel] Glycerine use and other fancy stuff
Hey Greg ;
If I run my reactor (which has a 1500 watt element but is a 220 volt
unit running on 110v) I am consuming 350 watts and current wisdom says
to allow 1 hr or more for the reaction so that's 350 Wh of energy used.
If I use a 300 watt US generator and the reaction completes in 10
minutes that's only 50 Wh of energy used. for the u-sonics and another
58 Wh for heating during that 10 minutes, but in fact the insulation
will keep the mixture hot for that amount of time so I can get away with
just 50Wh of energy. Plus if the abstract is right I use less catalyst
and less excess methanol and you have to consider the energy that went
into producing those as well. All told it is a significant savings!
Joe
greg Kelly wrote:
snip
The discussion of speeding up the acid/base process with ultrasound
seems a little out there. If the idea is to use renewable fuels, how
much electrical energy from the natural gas fired generating plant
will be used to speed up an equlibrium process? I think too much to
keep with the ideals. I don't mean to be critical. I ain't been here
long enough for that. And the people here have such a strong hold on
the concepts, I am just wondering if/what I am missing?
respectfully,
Greg Kelly
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