Results 151 to 160 of about 562 (196)
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Gas action effect of free piston Stirling engine
Energy Conversion and Management, 2016Abstract Gas action effect of free piston Stirling engine (FPSE) is very important to solve the key problem of start-up and find the way to increase its efficiency. The gas force is a key force to free FPSE. In this paper, the gas action effect has been analyzed by the method of rotation vector decomposition. It is found that the gas forces of piston
Jian Mou, Guotong Hong
exaly +2 more sources
Control-based design of free-piston stirling engines
2008 American Control Conference, 2008A control-based analysis and characterization of a free-piston Stirling engine is presented, and proposed as a lightweight power supply for untethered robots. Typically, such devices are designed from the point of view of a thermodynamic cycle in terms of traditional thermodynamic equations of state.
Jose A. Riofrio +3 more
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Dynamic Behaviour Prediction Of Free-piston Stirling Engines
Proceedings of the 25th Intersociety Energy Conversion Engineering Conference, 2005The paper presents an integrated methodology for both the design optimization and the performance evaluation of free-piston Stirling engines (FPSE) suitable for space applications. In particular, the prediction of the dynamic behaviour is the problem here considered in more detail.
BENVENUTO G +2 more
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Free-Piston Stirling Engines - A Progress Report
SAE Technical Paper Series, 1973<div class="htmlview paragraph">The concentric piston-displacer type of free-piston Stirling engine is being developed at Ohio University for use as a gas-fired air conditioner, a long-life isotope powered electric generator, a solar-electric energy converter, a solar water pump, and a simple classroom demonstrator.</div> <div class ...
William Beale +3 more
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Stability analysis of free piston Stirling engines
The European Physical Journal Applied Physics, 2013This paper presents a stability analysis of a free piston Stirling engine. The model and the detailed calculation of pressures losses are exposed. Stability of the machine is studied by the observation of the eigenvalues of the model matrix. Model validation based on the comparison with NASA experimental results is described.
Bégot, Sylvie +3 more
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Dynamic Stability of Free Piston Stirling Engines
14th Biennial Conference on Mechanical Vibration and Noise: Nonlinear Vibrations, 1993Abstract A Stirling engine develops work output from a thermal input. It is a quiet pollution free engine, which can use any heat source, including solar power. The piston-displacer mechanism is essentially a vibrating spring mass system and can be dynamically modelled, leading to a set of coupled nonlinear ordinary differential ...
Necati Ulusoy, Frances McCaughan
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Structural design of Stirling engine with free pistons
AIP Conference Proceedings, 2014Stirling engine is a device that converts thermal energy to mechanical work, which is mostly used to drive a generator of electricity. Advantage of Stirling engine is that it works with closed-cycle, where working medium is regularly cooled and heated, which acts on the working piston. This engine can be made in three modifications - alpha, beta, gamma.
Jozef Matusov +2 more
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Linear Dynamics of Free-Piston Stirling Engines
Proceedings of the Institution of Mechanical Engineers, Part A: Power and Process Engineering, 1985The free-piston Stirling engine (FPSE) is a heat driven mechanical oscillator from which power can be extracted. Linear dynamics is applied here in order to obtain: a stability criterion, a means for determining the oscillation frequency, relative amplitudes of the dynamic components, effects of friction on starting and the locus of the roots of the ...
R W Redlich, D M Berchowitz
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Large Free-Piston Stirling Engines
1985The word ‘large’ applied to Stirling engines means different things to different people. An engine having a 3 kW output would be large to those working on artificial hearts or cryocoolers for electronic applications. It would be small, negligibly so, to those interested in locomotive propulsion.
Graham Walker, J. R. Senft
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Hopf Instabilities in Free Piston Stirling Engines
Journal of Computational and Nonlinear Dynamics, 2013Free piston Stirling engines (FPSEs) are examples of closed cycle regenerative engines, which can be used to convert thermal energy into mechanical energy. These engines are multidegree-of-freedom dynamical systems, which are designed to operate in a periodic manner. Traditionally, for design purposes, linear models are used and the associated periodic
Farhan Choudhary, Balakumar Balachandran
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