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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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Optimization of a dual free piston Stirling engine
Applied Thermal Engineering, 2007This work relates the theoretical study of the dynamic behavior of a dual free-piston Stirling engine (DFPSE) coupled with an asynchronous linear alternator. This machine integrates one piston and two displacers placed in a symmetrical way compared to the piston to improve the stability of the machine.
Boucher, Julien +2 more
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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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A Fractional Horsepower Free-Piston Stirling Engine-Pump
6th International Energy Conversion Engineering Conference (IECEC), 2008Stirling cycle engines offer potential advantages over internal combustion engines in fuel choices, noise, and emissions. A free-piston Stirling cycle engine-pump (FPSEP) has been investigated for potential use in human-scale, fractional horsepower applications.
Sutapat Kwankaomeng +3 more
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Specific Power Estimations for Free-Piston Stirling Engines
4th International Energy Conversion Engineering Conference and Exhibit (IECEC), 2006NASA seeks high-power conversion systems for space applications and their requirements emphasize high efficiency and low mass. This paper presents preliminary designs and specific power estimates of high efficiency, free-piston Stirling machines for 5 kWe , 10 kWe and 25 kWe outputs.
Seon-Young Kim, David Berchowitz
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Key Techniques for Designing Free Piston Stirling Engine
2012 Asia-Pacific Power and Energy Engineering Conference, 2012In order to satisfy the requirement of power system for deep-space exploration, key issues for designing free piston Stirling engine were analyzed. With the thermodynamic and kinetic coupling designing ideas, we designed a set of free piston Stirling engine whose output power is 100W at operating pressures 8bar, hot space temperatures 700K, and cold ...
Hongshu Jia +3 more
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Palm Power Free-Piston Stirling Engine Control Electronics
AIP Conference Proceedings, 2007A prototype 35We, JP‐8 fueled, soldier‐wearable power system for the DARPA Palm Power program has been developed and tested by Sunpower. A hermetically‐sealed 42We Sunpower Free‐Piston Stirling Engine (FPSE) with integral linear alternator is the prime mover for this system.
Douglas E. Keiter, Ezekiel Holliday
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Biomass Free Piston Stirling Engine Generator with PV
2018 7th International Conference on Renewable Energy Research and Applications (ICRERA), 2018Proposed hybrid electric power generation system is constituted from Free Piston Stirling engine generator and solar photovoltaic system. Free Piston Stirling engine electric generator uses biomass, such as wood pellets as the heat source. This system produces maximum output of 1.6kW and $45^{\circ} C$ 200 L hot water with linear generator.
Ayumu Mabe +2 more
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Performance Characterization of Sunpower Free-Piston Stirling Engines
3rd International Energy Conversion Engineering Conference, 2005Over the past thirty years, Sunpower, Inc., the originator of the linear free-piston Stirling engine (FPSE), has developed core Stirling engine modules for a variety of applications. These range from domestic to military, terrestrial to space, and stationary to portable applications, with outputs from tens of Watts to 7.5 kW.
Seon Kim, James Huth, James Wood
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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, Wei Li, Jinze Li, Guotong Hong
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