[Gasification] ETHANOL GASIFICATION FOR DIESEL ENGINES

[Benjamin Domingo Bof]

Greg & April; i wish to explain why your proposal is happy for me. 
  In 2005 we arrange one motor to use E 85 from gasoline motor. 
  We set an heater at carbureter base with water cooling system. 
  Also change nozzles and reduces venturi dimension.
   Ethanol needs to mix with air an important amount of heat due it have very high vaporization coefficient.
  34 percent of its energy is to distill.
  Under carbureter base it have vaccum producing to cool air into inlet manifold
  . This fact is worst to mix ethanol to air near dew point.
  At low temperatures heat transmission is not good and liquid path is very short.
  With your proposal is all favourable; high air temperature, long path to homogeneous charge obtained and efficient cooling allowing  to increase fresh air amount into cylinders.
  This week my friend Paulo Alcover bought one Deutz FL 913 diesel engine and we are thinking to set ethanol devices to boost it.
  SAE have guidelines for improve this motor to reduce emissions. 
  This is the way.
  Thank you very much again.
  Regards, Ben
  
Greg and April <gregandapril at earthlink.net> escribió:
  Why not use it to cool the air post turbo ( in conjunction with or instead 
of an intercooler ), then it does double duty, both to cool the incoming air 
and as a fuel?

Greg H.


----- Original Message ----- 
From: "Benjamin Domingo Bof" 
To: "Discussion of biomass pyrolysis and gasification" 

Sent: Thursday, March 06, 2008 6:06
Subject: [Gasification] ETHANOL GASIFICATION FOR DIESEL ENGINES


DIESEL ENGINES Because of the fact that diesel engines do not use 
conventional spark ignition systems, it's difficult for pure alcohol to 
ignite within the combustion chamber. This, coupled with the fact that 
diesel injector pumps won't tolerate water, could be a problem ... 
especially if the alcohol used was not nearly pure.

Fortunately, there are several other ways to utilize homemade ethanol in a 
diesel engine by introducing vaporized alcohol to the engine along with 
diesel fuel. Probably the simplest way is to mount an automobile carburetor 
right on the diesel's air intake manifold and supplement the diesel fuel 
with alcohol metered through that piece of equipment. Of course - just as in 
a conventional gasoline engine - as incoming air rushes down the air inlet 
tube, it will pick up alcohol vapor metered through the carburetor ... which 
should have a controllable throttle to match tractor load.

Another way to use ethanol in a diesel engine is to install fuel injectors 
into the intake manifold to accomplish the same result. This system would 
require a separate pump that would have to be timed in order to inject 
alcohol at the proper moment.

A vaporizer - like those found on propane fuel systems - can also be used to 
add alcohol to the diesel fuel system. This, again, provides the diesel 
intake manifold with ethanol vapors that help combustion.

Since a diesel engine has closer tolerances and is more costly to repair 
than a conventional gasoline engine, you should take extreme care when 
altering and running diesel equipment on other than pure diesel fuel. If you 
don't consider yourself competent to work on diesels, find someone who is 
... since the diesel fuel injector pump must be adjusted to provide less 
flow when alcohol fuel is used, plus the fact that a lean mixture 
condition - and even increased horsepower outputs - can damage a diesel 
engine in short order.

Turbocharged diesels can be equipped with what is known as an "aquahol" 
injection system, to be marketed by the M & W Gear Company of Gibson City, 
Illinois early in 1980. This setup injects a fine mist of alcohol and water 
in a 50/50 ratio directly into the engine's air intake, which results in a 
lowering of fuel consumption and a tolerable increase in horsepower.




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