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Quasiturbine Engine Exhaust Heat Recovery?

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Posted by GillesQT on March 31, 2007, 7:02 pm

Interested by Engine Exhaust Heat Recovery?
A recent white paper is providing an overview on the matter.
See the list of Publications at Energy Central:

Engine Exhaust Heat Recovery with Quasiturbines
Offering Essential Efficiency Characteristics
Published March 25 2007 By Carol Crom
35 Page(s)

The energy components carried away by the exhaust, are primarily results of
incomplete combustion, incomplete expansion, sensible heat, and latent heat
of the water vapor created by burning of the hydrogen component of fuel.
This paper looks at the management of heat recovery energy and power, which
could reach the 25% range in steady driving and much more in city driving
(available energy increasing with decreased engine efficiency). Brayton and
Rankin Quasiturbine systems are described as the best possible heat recovery
techniques, which also could apply to geothermal, industrial processes,
solar, biomass combustion. and to nuclear heat as well. The extremely
compact and efficient Quasiturbine technology is needed to accomplish these
Also at: www.quasiturbine.com/QTPapiers/QTCromExhaustWP0612.doc

The Saint-Hilaire Quasiturbine As The Basis
For A Simultaneous Paradigm Shift
Published December 15 2003 By Myron D. Stokes
15 Page(s)

Amidst myriad, and many times unsupportable, claims of technological
breakthroughs capable -- fuel cells being at the top of this contention --
of inducing vehicular design and engineering paradigm shifts, we have
concluded that the Saint-Hilaire "Quasiturbine" may very well provide
impetus to retire the piston engine. It has served humanity for nearly two
centuries, and has earned its rest. eMOTION! REPORTS.com is providing a
comprehensive white paper that will perhaps allow you to reach the same
http://www.energycentral.com/centers/knowledge/whitepapers/report.cfm?rid 2224

A Six-Stroke, High-Efficiency Quasiturbine Concept Engine
With Distinct, Thermally-Insulated
Compression and Expansion Components
Published September 1 2005 By George Marchetti and Gilles Saint-Hilaire
16 Page(s)

One of the most difficult challenges in engine technology today is the
urgent need to increase engine thermal efficiency. This paper presents a
Quasiturbine thermal management strategy in the development of
high-efficiency engines for the 21st century. In the concept engine, high-
octane fuels are preferred because higher engine efficiencies can be
attained with these fuels. Higher efficiencies mean less fuel consumption
and lower atmospheric emissions per unit of work produced by the engine.
While the concept engine only takes a step closer to the efficiency
principles of Beau de Rochas, it is readily feasible and constitutes the
most efficient alternative to the ideal efficiencies awaiting the
development of the Quasiturbine photo-detonation engine, in which
compression pressure and rapidity of ignition are maximized.
http://www.energycentral.com/centers/knowledge/whitepapers/report.cfm?rid 2265

Quasiturbine: Technical Discussion
Comparing the Quasiturbine With Other Common Engines
Published October 1 2005 By Carol Crom
18 Page(s)

The Quasiturbine is a rotary engine which is much different than the Wankel
and other similar rotary engines. The four blade chain-like deformable rotor
provides additional degrees of freedom which permit the pressure volume (PV)
function to be optimized for thermodynamic performance. Neither piston
engines nor rotary engines like the Wankel can achieve performance equal to
that which can be achieved by the Quasiturbine of the equivalent size. It
should be recognized that because of physical and practical constraints, the
modern Otto cycle based engines deviate significantly from the classic Otto
cycle and the modern Diesel cycle based engines deviate significantly from
the classic Diesel cycle. Consequently, the efficiency achievable with the
conventional engine designs are much less. The way the Quasiturbine
circumvents many of the problem encountered with piston and the Wankel
engines is discussed.
http://www.energycentral.com/centers/knowledge/whitepapers/report.cfm?rid 2269

Using the Quasiturbine to Regulate
Natural Gas Pipeline Pressure and Flow-rate
By Harry Valentine

During an earlier time, no suitable pressure-reduction energy recovery
engines were available to install at natural gas pipeline transfer points.
New positive-displacement rotary engines have recently been developed that
have little need for lubrication can be installed at pipeline transfer
points that involve a large flow-rate of gas as well as large drop in line
pressure. These engines could provide base-line electrical power for
numerous large customers of natural gas.
http://www.energypulse.net/centers/article/article_display.cfm?a_id 05

Salutations, Gilles

Posted via a free Usenet account from http://www.teranews.com

Posted by nicksanspam on March 31, 2007, 7:02 pm

Not in this newsgroup.


Posted by GillesQT on March 31, 2007, 10:13 pm
 Why not? Same technics apply to solar thermal heat recovery...

Posted via a free Usenet account from http://www.teranews.com

Posted by Solar Flare on March 31, 2007, 10:56 pm
 Because most heredo not care about engine anything.

Posted by Jeff on April 1, 2007, 2:25 am
 Solar Flare wrote:

That's not strickly true. Morris is certainly intersted in fluidyne
sterlings. And I have some interest in that and other solar engines as well.
Whether we are interested in quasiturbines enough to register for an
article is another question. Seems like we've been through this before.

This group is so low traffic that I like to see almost any post!


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