[Gasification] Prime movers -- The Slow Go diesel concept

[Arnt Karlsen]

On Tue, 1 Aug 2006 19:05:59 -0600 (CST), Peter wrote in message 
<3.0.32.20060801190305.00c8b100 at pop.btl.net>:

> I have tried to explain this concept -- to many time -- but once more.

..next time, mention the fact that pumping air costs fuel.  
If that to carry across the message, try make'm calculate 
the air pumping losses at 375 and 850 rpm's.   ;o)

> I have to apply a little bit of hand soap to the drive belts about
> once per week to stop the squeaking.

..tried tightening the belt?  ;o)

> Well -- I can promise you -- one can drop the RPM from 850 to at least
> 375 with no ill effects --

..erm, _staying_ at 375 with a light load might be ok, 375 with an heavy
load will mash your con rod 'n crank shaft bearings a bit harder.  Make
sure you pump enough lube to carry the load, or you'll gnaw away metal.

..thumping away at 375 and an annual or less 850 run-up might give you
an annual piston ring puzzle to solve.  ;o)  Baseload at 375 and 850
runs at least once a day should be no problem.

> Now -- why would anyone in their right mind want to know this??

..  ;o)

> Well -- in my "dreams" I would like to run this Lister set up using a
> 3 phase -- PM alternator in the same manner present windmills do.
> 
> That is the AC 3 phase is rectified to DC -- charges batteries -- and
> then is inverted to supply the voltage and phases one wishes after -- 
> 
> Instead of holding the engine at a fixed RPM -- one then does like the
> wind -- blow hard -- blow easy -- 
> 
> so -- if I need 5 kw -- the engine runs at 850 RPM -- if I need 1500
> watts -- it runs at 375 RPM -- but always -- with the rack open to the
> perfect setting for maximum fuel consumption efficiency.
> 
> But -- to do this -- one would need a different type of engine control
> unit.

..aye.  

> I would suggest using a Hz reader -- and clocking the engine in
> according to that -- plus minus 1/2 hz.

..pc's still have useful ports?

> Think on it -- it will come to you -- I am exhausted dealing with the
> finer points -- but with a micro in line -- a stepping motor or other
> servo hooked to the rack -- it is easy to do.

..chk out those nice radio control model servos next time you buy 
glow plugs.  ;o)

> I must convert them to charcoal burners first -- with some help from
> Doug.
> 
> I am not aiming for dual fuel though -- pure producer gas -- using
> glow plugs for adjusting compression ignition points. I already have
> the extra cylinder plugs in hand -- and need but order some model
> airplane glow plugs. These I will mount -- say 3 -- in the
> precombustion chamber "plus" that screws into the side of the Lister
> cylinder head. And buy using a resistor -- adjust the proper power
> levels.

..modellers use electronic glow plug drivers, these sense the filament
temperature and backs off on the glow power.
 
> I will start on diesel -- but once warmed up -- off goes the diesel --
> on goes the glow plugs -- and there one is -- running 100% on producer
> gas.
> 
> So I hope -- 
> 
> Again -- I plan on a maximum of 1500 watts -- continuous operation --
> power plant style.
> 
> I do sometimes need more power (but at the 1500 watt setting I now can
> operate all my present in hand power tools -- including the skil saw)
> -- but plan to that by starting another generator -- that will run
> just for that purpose only -- and always just on diesel or equivalent
> veggie oil -- or home refined from crude oil -- or cleaned used engine
> oil -- or what ever I have at hand that day.
> 
> It is much more economic to run two power plants that try to do it all
> with one -- and the equipment will also then last ever so much longer
> --
> 
> As far as I know I am the only person on earth at this time with this
> "attitude" -- but that certainly might change soon -- once the Muslims
> and their friends figure out the best way to bring back sense to you
> Westerners is to stop producing crude oil by a large amount -- thus
> driving the price up past $200 US a barrel in not time -- worse --
> crashing the global economy to bits -- blowing up the paper (totally
> devaluating your paper monies) so that in real terms -- even $10,000
> per barrel of paper money will be cheap.

..insh'Allah!  ;o)


-- 
..med vennlig hilsen = with Kind Regards from Arnt... ;o)
...with a number of polar bear hunters in his ancestry...
  Scenarios always come in sets of three: 
  best case, worst case, and just in case.