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Showing 1 to 17 of 17 for “"free piston"”.
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Design and testing of experimental free-piston cryogenic expander
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1999.
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Free-Piston Stirling Convertor Model Development, Validation, and Analysis for Space Power Systems
<p>The Advanced Stirling Convertor (ASC) is a free-piston Stirling engine coupled with a linear alternator currently being under extended testing at the NASA Glenn Research Center (GRC). Using the Sage 1-D Stirling modeling software, a linear alternator model was developed using two separate …
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Operation and control of a two-stroke, free-piston-engine-driven linear alternator
Thesis (S.B. and M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2000.
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Active vibration control for a free piston stirling engine with linear alternator FPSE/LA
… motion of a permanent magnet attached to its piston inside a linear alternator. Currently, the damping of the vibrations in the FPSA/LA is achieved by employing a passive tuned mass damper (TMD) tuned to damp vibrations at 50Hz. While passive devices provide a simple and a reliable way to …
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Design development and analysis of a dual mode free piston jet engine with applications to light aircraft
Thesis. 1975. M.S.--Massachusetts Institute of Technology. Dept. of Aeronautics and Astronautics.
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Estudo teórico de um motor stirling de pistão livre
Existing linear mathematical models for the Free Piston Stirling Engine with analytical solutions in closed form have been analised, along with new models including one nonlinearity and some other phenomena of the real cycle. Numerical solutions are obtained based on motor simulations and …
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Miniature HCCI Engine Compressor
… and miniature robotics. A prototype miniature free-piston engine compressor runs for up to 30 s. New pistons and cylinder liners with coatings did not improve reliability when implemented in the engine. The engine stalled because pressure could not be held in the cylinder due to blow-by leakage …
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Characterization of Glow Plug and HCCI Combustion Processes in a Small Volume at High Engine Speed - Load Range, Emission Characteristics and Optical Diagnostics
… engine was developed and a miniature HCCI free piston engine was designed from scratch.
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Optimizing the scavenging system for high efficiency and low emissions: a computational approach
A free piston internal combustion engine operating on high compression ratio, HCCI combustion is being developed to significantly improve the thermal efficiency and exhaust emissions relative to conventional crankshaft-driven SI and Diesel engines. A two-stroke scavenging process recharges the …
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Design of an internally pressurized aerostatic journal bearing for thermoacoustic engines
… an aerostatic journal bearing for reciprocating free pistons was designed for application with thermoacoustic engines. By taking advantage of the maxima and minima of the oscillating pressures inside the engine's cavity, the bearing does not rely on external pressurization by a pump, but is …
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Modeling of shock boundary layer interactions and stability analysis using particle approaches
… at Buffalo Research Center (CUBRC), and T-ADFA free-piston shock tunnel facilities using particle approaches to model the Boltzmann equation. The Boltzmann transport equation is the most general formulation of binary gas flows for a wide Knudsen number spectrum including rarefied, slip, …