Results 261 to 270 of about 2,598,073 (297)
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Graphodynamics applied to weight-piston-liquid impact
International Journal of Mechanical Sciences, 1964Abstract Graphical solutions of the one-dimensional elastic wave equations have been applied to the case of a cylindrical weight impinging upon a piston in contact with a liquid column in a thick-walled cylinder with a rigid end. The pressure-time histories near the base of the liquid column predicted by this method are in good agreement with those ...
I.S. Donaldson +2 more
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Liquid piston compression efficiency with droplet heat transfer
Applied Energy, 2014Abstract Wind turbines and other unsteady power producing systems can benefit substantially by integrating inexpensive and easily sited Compressed Air Energy Storage (CAES) to provide a more continuous energy supply. However, traditionally CAES has not been combined with off-shore wind turbines. In addition, typical CAES systems are inefficient since
Chao Qin, Eric Loth
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Liquid Hydrogen Bubble Chamber Expanded by a Piston in the Liquid
Review of Scientific Instruments, 1958A liquid hydrogen bubble chamber with useful volume 6¼×2¾×3 inches has been built which is expanded by a piston operating in the liquid hydrogen. Temperature control is provided by regulating the pressure in the hydrogen reservoir. Satisfactory tracks have been obtained with maximum expansion ratio of 3%, expansion time of about 5 msec, and chamber ...
E. M. Bolze +6 more
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Cavitation in liquid helium using a vibrating piston
The Journal of the Acoustical Society of America, 1976Experiments have been performed in which a piston is vibrated inside a glass tube containing liquid helium. The piston was driven by an electromagnetic shaker in the frequency range 20–80 Hz at an intensity capable of generating cavitation effects. At critical particle velocity amplitudes of a few centimeters per second noise is generated.
T. Vroulis, E. A. Neppiras, R. D. Finch
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A looped-tube traveling-wave engine with liquid pistons
Journal of Applied Physics, 2017This report describes the operation of a liquid piston engine that uses thermoacoustic spontaneous oscillations of liquid and gas columns connected in series to form a loop. Analysis of the analogous mass-spring model and the numerical calculation based on hydrodynamic equations shows that the natural mode oscillations of the system allow the working ...
H. Hyodo, S. Tamura, T. Biwa
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Experiments with plunging cylinder liquid piston Stirling engines
Proceedings of the 24th Intersociety Energy Conversion Engineering Conference, 2003Plunging cylinder liquid piston Stirling engines with flow restrictive seals were tested at atmospheric mean pressure and low temperatures. Two method of fluid level control within the plunging cylinders were investigated, and a higher temperature hot oil engine was operated.
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Piston-Cylinder Apparatus Operating at Liquid Helium Temperature
1978Pressure experiments which demand truly hydrostatic conditions become very difficult in the range of temperatures below 77K and pressures up to 15 kbar. This is mostly due to the fact that all fluids become solid in this range, and therefore small nonhydro-static stresses cannot be completely avoided.
S. Porowski +2 more
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