The video show a Briggs and Stratton running on gasoline alcohol and
acetylene, I wish it were possible to do this with the rotary to test
some ideas
Working Engine With Crystal Clear Head Shows Combustion Process In
Real Time
http://altdriver.com/story/working-engine-with-crystal-clear-head-shows-combustion-process-in-real-time/
Alex Molteno
Can you share those ideas Alex? :-)
Paul Lamar
I was thinking along the ideas and modifications you Frank and others
were talking about a few weeks ago, guiding flame fronts, additional
spark pugs (side by side) more complete combustion of hydrocarbons
instead of mixture igniting while going out the exhaust, changing
compression ratios with inserts, additional shapes to induce more
swirl for complete combustion.
If you could film it in real time what a great way to test these
ideas if it were possible to have a clear view on to the rotary
combustion chamber.
Alex Molteno
Attempts have been made to do that in the recent past (2015) on the
rotary but due to the geometry and other temperature considerations
it has not been very successful.
What has worked recently has been CFD. CFD gives you velocity and
pressure. CFD is improving all the time. If somebody built my idea
of a multiple piece rotor that bypassed squish air it would be very
very difficult to see that optically. It was CFD results that gave
me the idea.
Paul Lamar
For interest try checking the website for RX7 Specialties or REC in
Calgary, Alberta. Last I looked he showed some interesting projects
he has worked on. Built some rotaries to run small compressors for
the gas industry that burned sour gas to 3% H2S.
Dale Davies
I always thought that was a good idea.
Many oil wells burn the gas in the atmosphere when it could be
generating electricity and feeding it back into the grid.
The huge Ingersoll Rand rotary ran on oil well gas.
The advent of the Silicon Nitride 20,000 hour apex seal would make
that more economically viable as the engine could run 24 hours a day
for years. Lets say it was 200 HP. That is 149 Kilo watts per oil
well.
At ten cents a kilowatt that is 15 dollars a day. About $5000 a
year.
in LA CA it is about 12 cents a kilo watt.
What does a kilo watt of electricity cost in your home town?.
Paul Lamar
I pay 29.5 NZ cents/Kw Andrew Campbell
That is about 21 cents US. If there are any oil wells in NZ burning
off natural gas a rotary powered generators running on natural gas
would have a big pay off. The generator would pay for itself in six
months.
Does NZ have any big river dams with hydro electric power
generators?
Paul Lamar
This is very interesting stuff. When gas was $4-5/ gallon I was
looking at
experimenting with LP at $1.80. Has anyone seen a rotary run on LP?
Todd Olson
Yes. It will run on almost anything. There are several oil wells
within a few
miles of here that burn gas 24hours a day. One is ten feet high.
Paul Lamar
You could turbo or supercharge it no problem as LPG will run really
well in a recip engine at 13:1 compression. Fuel economy at that comes
out to close to the same as gasoline but way less expensive. When it was
still a waste byproduct it was just $0.05 per liter or about 0.20 per
gallon US. UPS had delivery vans on a GM chassis with turbocharged 4.3L
V6 like used in the Typhoon. They ran CNG which can be used at 15:1
compression.
Problem with LPG is the tank size and you can not park underground.
A CNG or LNG conversion would be similar to the RX8 Hydrogen
installation but access to fuel could be easier and the tank will not be
empty after sitting two weeks.
Dale Davies
The Rotary Engine free News Letter. Powered by Linux. If you want
off the list PLEASE let me know and I will remove you. ACRE NL web
site.
http://www.rotaryeng.net You Tube
http://tinyurl.com/beqqxas
Copyright 1998-2017 All world wide rights reserved.