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Analysis Study Research Paper | Energy Engineering | Canada | Volume 12 Issue 12, December 2023
Quasiturbine Fundamental of Internal Components Behavior and Detonation Flash Compression for Early Energy Recovery
Gilles Saint-Hilaire [3] | Roxan Saint-Hilaire [3] | Ylian Saint-Hilaire [3] | Francoise Saint-Hilaire [3]
Abstract: The deformable Quasiturbine relays on a nearly Homo-Kinetic perfectly balanced deformable Lozenge Rotor with no radial mass movement and nearly imperceptible contour seal extension, for High-Torque low RPM power density and efficiency. The present work analyses a Moderate Deformable QT-SC (without carriage) case study, with its design sequence starting from the physical component sizes, the selection of the (moderate) Maximum Rotor Deformation Ratio MRDR, and the stator confinement profile additional parameters input and calculation. From the basic properties of the Lozenge, the components behaviors are timely analyzed in position, volume, speed, and incremental Torque and Energy over an entire power stroke. It is shown that the Blades turn at tangential speed on a perfect circle at RPM speed +/-30 %, with the Blade center points diverging sinusoidally +/-8, 5 degrees in agreement with simple differential corrections when using a central shaft. This confirms also the rotor inertia to be constant and acting as a conventional flywheel, and that centrifugal forces are no-issue in the Deformation of the QT Lozenge Rotor. Comparisons are presented using a 3R +/-1R static mathematical Piston model in expander mode at constant pressure. The work covers also the Detonation QT-AC case study (with carriages, having variable contour seals distances) which by opposition to the Piston handicaped by its poor fluidity of movement with components speed range and acceleration-deceleration variations, and where the fast Detonation occurs in a Piston rest zone, the near Homo-Kinetic Detonation Quasiturbine QT-AC has a set of Rotor Blades on carriages turning non-stop at +/-30 % of the steady RPM, with the Detonation occurring in the fastest blade moving zone. The detonation is an efficiency issue also because modern fuels including hydrogen, tend to burn faster in some condition. A substantially different QT-AC chamber volume variation is also compared to a static mathematical Piston model.
Keywords: Quasiturbine; Rotary Engine; Steam Engine; Detonation Engine; Rotary expander
Edition: Volume 12 Issue 12, December 2023,
Pages: 658 - 672