[Gasification] SFC for De-rated EnginesWas:smallscalegasifiers for those that need them

Sun Jul 1 23:08:34 EDT 2007

----- Original Message ----- 
From: "Peter Singfield" <snkm at btl.net>
To: "Discussion of biomass pyrolysis andgasification" 
<gasification at listserv.repp.org>
Sent: Sunday, July 01, 2007 6:48 PM
Subject: Re: [Gasification] SFC for De-rated EnginesWas:smallscalegasifiers 
for those that need them


>
>
>
> At 08:42 PM 7/1/2007 -0400, you wrote:
>>At 07:59 PM 7/1/2007, you wrote:
>>>Just to let you know - resorting to personal attacks when on anyone
>>>disagrees with you is a sign either of poor knowledge of the material 
>>>and/or
>>>a weak personality.
>>
>>It is called an ad hominem attack and is a common tool used by people
>>who do not have a valid argument.  "Don't listen to this baby killing
>>child molester..." is a poor rebuttal.
>>
>>
>>David G. LeVine
>>Nashua, NH  03060
>>
>>
>
>
> Dudes - -you got me -- I am just a big "FAKE" -- only into ego tripping --
> don't know nothing valid -- never did anything in my life except lie and 
> con!!
>
> You hold that dear to your hearts now that you have convinced yourselves 
> of
> it --
>
> My loss??? I seriously doubt that!!
>
> I regret I ever brought up this topic -- as "OBVIOUSLY" it can't happen!!
>
> Look -- I never said truck engines -- I said small single cylinder 
> diesels.
>
> And how cares if you believe or not --
>
> you don't like me "style" -- so don't do it!!
>
> Art - -you have involved me in a most "FRUSTRATING" position -- I am 
> simply
> reporting on results to date -- and there you be -- making a super big 
> deal
> out of it -- as in it ruins engines -- etc.
>
> Based on your trials -- right??
>
> Come on dudes -- what is the purpose of technical discussions -- eh??
>
> I know some people hear me message -- and probably will go through and try
> it -- and gain from it - -and report back -- then Art can bash on them 
> to!!
>
> Jeez!!
>
> Right now I am investigating state of the art battery charging systems --
> better not report those results -- just more reason for folks here
> to********* get negative3 all over.
>
> Why would charging batteries be of interest to people doing gasifiers??
>
> Guess -- eh??
>
> Art -- you have succeeded in misdirecting a number of people in 3rd world
> in regards to "economizing" -- congratulations!!
>
> What an agenda you have!!
>
> The person that did go on to run full bore at slow RPM was Ken Boak -- so
> curse him out to.
>
> I actually do not know if it worked or not -- but Ken -- if your still on
> the list -- beware about reporting results from hands on work -- it is not
> excepted by the "click" on this list!! (unless is agrees with their
> preconceived notions only)
>
> For your info Art -- I argues the full bore at low RPM thingy with Ken at
> the time -- saying much what you stated -- so went ahead with under black
> smoke operation at low RPM.
>
> It's running diesels in black smoke mode that shortens their life
> dramatically!!
>
> It is very easy to design a set up not to black smoke at the average power
> you will be using --
>
> And they do not prematurely fail!!
>
> Ah -- believe what you all want to believe!!
>
> Me -- I believe what I have to believe -- not to "fail" --- and that
> requires hands on prototyping -- nothing else proves a point as well!!
>
> As for my being backwards here -- I work with equipments you can't even 
> get
> in the US!!
>
> The thing on my bench right now is a derated DC power plant of exceptional
> high efficiency just for charging batteries in the fastest -- most
> efficient -- and durable -- manner.
>
> It involves derating a 195 (you can't get those!!) -- using a PM DC welder
> alternator (you can get on of those either!!) -- and marrying this all to
> the right charging circuit -- and that folks is called:
>
> All About MPPT Solar Charge Controllers
>
> Theory, operation, and use of MPPT charge controllers for solar electric
> systems.
> What the heck is an MPPT??
>
> This section covers the theory and operation of "Maximum Power Point
> Tracking" as used in solar electric charge controllers.
>
> A MPPT, or maximum power point tracker is an electronic DC to DC converter
> that optimizes the match between the solar array (PV panels), and the
> battery bank, utility power, DC motor, or DC pump.
>
> Instead, the controller looks at the output of the panels, and compares it
> to the battery voltage. It then figures out what is the best power that 
> the
> panel can put out to charge the battery. It takes this and converts it to
> best voltage to get maximum AMPS into the battery. (Remember, it is Amps
> into the battery that counts). Most modern MPPT's are around 92-97%
> efficient in the conversion. You typically get a 20 to 45% power gain in
> winter and 10-15% in summer. Actual gain can vary widely depending 
> weather,
> temperature, battery state of charge, and other factors.
>
> How Maximum Power Point Tracking works
>
> Here is where the optimization, or maximum power point tracking comes in.
> Assume your battery is low, at around 11.5 volts. A MPPT takes that 16.9
> volts at 7.1 amps and converts it, so that what the battery gets is no
> longer 7.1 amps at 16.9 volts, but 9.6 amps at about 12.5 volts. Now you
> still have almost 120 watts, and everyone is happy.
>
> **************************************************
>
> And yes -- I am into conserving energy -- that makes me a nut case -- so
> what!!
>
> But my customers here by units that cost much less to operate -- that is
> our bottom line -- period!!
>
> Here is how MPPT technology can save another 40% or so of diesel fuel ---
>
> I derate the engine to run a lower RPM sweet point -- that sweet point is
> not full bore!!
>
> The diesel runs turning the DC dynamo at that sweet point putting out --
> for a 24 V batter system -- say -- 32 volts.
>
> The MPPT controller converts that to exactly the right voltage for maximum
> battery charging -- at 94% or better efficiencies.
>
> I'm looking at a 60 amp unit -- retail price in the US -- $200
>
> They can be rigged to run parallel -- I need two for 120 amps -- which is
> the sweet spot for the DC welder (100% duty cycle)
>
> I probably can source the units in China for $30 each --
>
> Ya -- we are so "backwards" --- no "grant" money -- for starters -- and
> that allows me to do things considered impossible up your way --
>
> How "STUPID" -- right!!!
>
> I'm not stopping -- and your not even "started" -- let me know if you ever
> even get started -- eh!!
>
> Meanwhile -- keep playing with theories ---
>
> Peter/Belize
>
>
>
>
>
>
>
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