benefits improve with better engine concepts.
With today concerns about the future of our planet,
acknowledging the Quasiturbine
may fall into the realm of a social obligation...
In his forward statement of December 15, 2003
about the Quasiturbine White Paper,
Mr. Myron D. Stokes,
www.emotionreports.com wrote :
In the context of the international
environmental and resources depletion discussions such as the Kyoto
Accord, and taking into account the general population conviction that
climate changes are currently endangering our planet, there is a new sense
of urgency mandating that no energy technologies can be discarded, and
this is particularly true of any sound engine concept breakthroughs. The
Quasiturbine technology is among the very few energy and environment tools
we have to address our present concerns, and one precious new means
available to improve our vital collective objective.
It goes without saying that acknowledging its
existence may fall into the realm of a social obligation.
Hydrogen: Not Zero Pollution
Excludes NOx and H2S environmental concerns. Fossil fuel contains carbon and hydrogen. Carbon
combustion produces CO2 which the photosynthesis fixes the carbon into the
biomass, and return the O2 to the atmosphere. Hydrogen combustion
fixes the O2 from the air into water, which oxygen is also liberated back
in the atmosphere by photosynthesis. Since there is not enough
photosynthesis to digest all the CO2, there is not enough either do
process all this synthetic water. Massive hydrogen use has the net effect
of removing oxygen from the atmosphere of our planet and fixing it into
water. CO2 problem is not dissociable from Oxygen depletion. Hydrogen
produced from water (avoiding electrolyses degradation of precious
electricity) will do the same if the oxygen is not liberated to the
atmosphere at the time of production, which is unlikely, considering that
oxygen is precious for industrial process and will rather be fixed by
other chemical process, unless we could not make use of all the massive
As a result, unless oxygen is made free to the
atmosphere when produce, we can not say that transforming hydrogen
into water vapor (including by combustion or fuel cells) is pollution
free, when 2H does definitively removed
1 precious oxygen atom form the
surface of our planet! (some calculation
this is not an issue, but?). Both CO2 and oxygen depletion are
concerns. Synthetic fuel made out of CO2 from the air or
other environment would be more neutral and acceptable - However,
where will the energy to do that come from?
Free Green House Gas Internal Combustion Engine:
Hydrocarbons contain only Carbon and Hydrogen which are separated by heat,
and recombine with air's oxygen to make water and CO2. People are
complaining of bad combustion when engine is making black carbon particles
though the exhaust, but this may be good new for GHG? In fact, a way to
have a GHG pollution free combustion engine (with somewhat less total
power) is to burn only the hydrogen from the hydrocarbon fuel, and recover
the <burnt> Carbon (...not dropping it in fine particles in the
environment). This is in some way what fuelcell (reformer) are attempting
to do, by <burning> only the hydrogen. Modern diesel engine captures
carbon particle in after treatment filers - where burning it does not
bring any energy, worse is producing pure CO2! So, not burning the carbon
from the hydrocarbon fuel would be a way equivalent or better than the CO2
sequestration. The carbon in the fossil fuel would then only play the role
of a hydrogen storage chemical bound, a simple way to go around hydrogen
Pneumatic, steam, Stirling and hydrogen engines may
not produce much pollution at their level, but a critical look must
nevertheless be given to the anterior stages of the energy cascade.
Combustion engine pollution goes from liberating the CO2 by
fossil fuel combustion (CO2 could be pollution free only if
captured initially by synthetic
fuel manufacturing process), nitrogen oxides production, particulates, lubrication, excess heat,
noise, vibration, environmental recycling... Excess thermal pollution is also
part of the concern.
Engine Exhaust Heat Recovery:
By placing a hot Quasiturbine into or around an engine exhaust pipe, and
injecting pressurized hot water (steam keep in the liquid state for better
heat transfer), some heat can be recovered into mechanical energy.
Stirling and short steam circuit Quasiturbine could do similarly!
NOx, Noise, Vibration
Less pollution and more fuels options: In all engine, the NOx
results from three factors: high pressures, high temperatures, and prolonged
times of confinement. As the Quasiturbine expansion starts earlier than in the
other engines, the initial temperatures and pressures are less, as well as the
time of confinement in the extreme conditions. Piston mass injection (droplet
density and inertia are greater that vapor and affected by valve flow
perturbation) and exhaust valve cooling (rapid combustion is hotter) are two
other vaporization piston limitations. However, fully pre-vaporized gasoline
does improve combustion quality and is desirable from the environment point of
view even if the piston engines do not stand it well... (conventional gas
turbines prefer gaseous state or very rapid liquid fuel vaporization).
Less noisy: For comparable power, the Quasiturbine is
much quieter than the piston engine, since it splits each expansion in 4 per turn (or 8 by
2 turns for the 4 stroke engines), and evacuates the gases more gradually and on a greater
angular displacement (in opposition to the piston which evacuates gases especially at mid
Zero Vibration: The foundation of the Dr. Raynaud
syndrome in Chicago is dedicated to the preoccupant problem of vibrations. The vibrating
portable tools (of which the chainsaws) gave name to the " disease of the logger
" which goes
from insensitivity of the hands and the arms, until the back bone pain, and capillary
vessels and blood bursting. The professional truck drivers generally suffer from the
syndromes of vibrations. The Quasiturbine is a perfectly balanced engine which turns
without vibration, and generates less noise. This the motive for our priority project of a
therapeutic chainsaw with zero vibration to fully emphasize the characteristics of
Quasiturbine CO2 reduction
The CO2 is the prime consequence of using fossil fuel, a
by-product that even a perfect engine will not be able to circumvent
(CO2 could be pollution free only if captured initially by synthetic
fuel manufacturing process).
For a given amount of net energy needed, a CO2 reduction can
only be obtained by an increase in engine efficiency. The Quasiturbine
increases the efficiency in several ways with substantial reduction in CO2:
- Because it does not have internal accessories to drive, like the
piston cam shaft and valve train, less fuel is burn to satisfied
the need of the
- Because of the shaping of the volume pressure pulse, the
thermodynamic of the Quasiturbine can be far superior, and required less
- Because the engine weight is about 1/4 that of a piston, less fuel
is needed in many applications.
- Because the Quasiturbine is a high torque low rpm engine, no fuel is
needed and lost in the transmission gears.
- Because the Quasiturbine can be made of large size and modulated in
power, it could cut utilities fuel consumption or co-generation steam.
- Because the Quasiturbine (AC model with carriages) has the potential
to run in detonation mode, 50% fuel saving in
transportation application could be reach.
Other Environmental Benefits
The environmentally friendly Quasiturbine engine helps mitigate
several user inconveniences:
- Atmospheric gas pollution - Having a reduced combustion confinement
time, the NOx are are produced in lower concentration.
- Thermal pollution - Having an early mechanical extraction
capability, less thermal energy is released in the environment.
- Noise pollution - Having 4 combustions per rotation, and due to a
longer gas relaxation chamber, noise is reduced by a factor of 20 or more !
- Vibration pollution - Vibrations are responsible for billions of $
of breakdown everywhere. Dr. Raynaud vibration syndrome
is affecting thousands of wood workers and truck drivers. The Quasiturbine
is a vibration free engine.
- Oil free engine - Lubrication is source of pollution. The
Quasiturbine has potential to be an oil free engine.
- Steam and pneumatic power source - Where pollution free engine is
suitable, the Quasiturbine is a superior and efficient gas expander.
The Quasiturbine is also suitable for co-generation projects.
- The Quasiturbine engine is ideal for solar thermal station using
close liquid-vapor steam circuit.
Hydrogen compatible - Hydrogen fragilises steel, and degrades all
oils. The Quasiturbine has a cool and stratified intake area most
suitable for pure hydrogen engine (lubricant free) combustion.
Photo detonation compatible.
The chemists prefer the detonation combustion, because it is faster and
more complete. Short pressure pulse and fast pressure rising and falling
ramp characteristics make the Quasiturbine ideal for detonation mode.
This is the most important Quasiturbine revolution to expect on the long
An Immediate Environmental Tool
Engines are at the end of the energy chain, and their
pollutions are in the most immediate users environment. Better engines are
keys to better environment, not only because of their own improved
efficiencies, but also because any bit a improvement has directly
amplified impacts on all anterior stages of the energy cascade and
A lot of research are going on to reduce environmental concerns on the
long term, like hydrogen, fuel cell, high temperature nuclear reactor,
nuclear fusion... Hybrid concepts are ways to harvest part of the "low
power efficiency penalty" of the piston engine used in vehicle, but
counter-productive measures limit the long term perspective until they
could efficiently fuel from the electrical grid. None of these solutions
are short term stable and competitive. The
Quasiturbine in Beau de Rocha (Otto) cycle is a relatively simple
technology which could be widely used within a few years with substantial
environmental benefits over the piston engines in many applications.
Large utility plants convert energy more efficiently
than small distributed units and should be favored when possible. The
detonation Quasiturbine engine is one of the few long term means to match
utility efficiency the distributed way, while being as chemistry clean as