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As a means to improve the efficiency of its waste heat recovery products, the Company is also developing a revolutionary new advanced turbine engine – the TurboFlux™ PGS -- that promises to increase the power output, while lowering the component cost, of its waste heat recovery products.

Our proprietary disc turbine (Patent: USSN: 60/415,239 Improved Method of and Apparatus for a Multi-Stage Boundary Layer Engine and Process Cell) is being developed to explore the potential for cost effective electricity production from biomass, waste heat recovery and a variety of other alternative fuels.

The TurboFlux™ PGS is an entirely different, yet equally promising, advanced turbine which the Company believes may be lower in cost to manufacture and equal or better in operating efficiency than certain conventional engines -- giving the Company a significant competitive price and performance advantage that should translate into significant market penetration.

The TurboFlux™ PGS differs from the conventional turbine primarily in that the rotor consists of a series of flat disks mounted on a shaft and rotating within a casing. The steam [or gaseous products of combustion] enters with high velocity at the periphery of the disks, flowing between them in free spiral paths, and finally escaping through exhaust ports in the center.

Instead of developing the energy of the steam [or gas] by pressure, reaction or impact on a series of blades or vanes [or pistons – as is done in conventional gas engines and turbines], TurboFlux™ PGS depends upon the fluiditic properties of adhesion and viscosity—the attraction of the steam to the faces of the disks and the resistance of its particles to molecular separation. This effect allows the fluids, gases and solids passing through the disks to literally pull the turbine rotor around, transferring the velocity energy of the motive fluid to the disks to rotate them and the shaft.

A very simplistic boundary layer turbine was operated by EERC ( Environmental Energy Research Center ) in 2002 for 40 hours, consuming 150 lbs of biomass fuel. The tests included initial firing of 10% biomass by heating value, increasing to 100%. Turbine inlet conditions averaged 40 psig and 700°F. Over the course of testing no significant component degradation was observed. The results of the study represent the first step towards development of a biomass boundary layer turbine. It has been determined that no significant barriers should hamper the use of biomass fuels in the rotor.

The EERC (http://www.undeerc.org/) results of the project demonstrate that it is feasible to fire biomass in a boundary layer turbine. Efficiencies of current turbines are about half of the desired 50% isentropic efficiency, with the exception of work performed in Russia . Short-term firing of biomass shows excellent results relative to degradation of turbine performance.

Prototype, 12" rotor
12" prototype on dynomometer
Rotor with inlet nozzles

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