Results 21 to 30 of about 15,161 (263)
MEMS-Based Boiler Operation from Low Temperature Heat Transfer and Thermal Scavenging
Micromachines, 2012 Increasing world-wide energy use and growing population growth presents a critical need for enhanced energy efficiency and sustainability. One method to address this issue is via waste heat scavenging.
Leland Weiss +3 more
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Free-Piston Compressor-Engines [PDF]
Proceedings of the Institution of Mechanical Engineers, 1947 The Pescara free-piston engine has been developed in France during the last twenty years, and the paper gives a description of a portable air compressor which has been proved in commercial work, and is now in production. An explanation is given of those characteristics in which this engine differs from the orthodox engine-driven crankshaft compressor.
openaire +2 more sources
IEEE Access, 2020 Opposed-piston free-piston engine generator (FPEG), as an energy conversion device, has attracted the attention of researchers with its advantages of variable compression ratio (CR) and good dynamic balance performance.
Jinkang Lu, Zhaoping Xu, Liang Liu
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Весці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2018 Power supply system of advanced robotic systems requires the development of electromechanical energy converters with high energy and minimum weight and overall dimensions. In this regard, a free piston engine with an electric generator is considered as a
A. B. Menzhinsky, A. N. Malashin
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Energy Reports, 2021 In this paper, an experimental test rig has been developed by utilising the free-piston linear generator (FPLG) principle of a dual-piston air-driven system.
Mhadi A. Ismael +9 more
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Numerical Analysis of the Piston Motion in a Free Piston Driver
JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, 2007 A numerical analysis of a piston motion in a free piston driver has been conducted including a diaphragm rupture. Quasi-one-dimensional flow is assumed in the driver. Various losses, which are generated in a compression process, are simplified. A process of the diaphragm rupture is assumed by Outa’s model. Experiments are also conducted by using a free
Mizoguchi, Makoto, Aso, Shigeru
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Free-Piston Engine Design and Evaluation with Different Compression Ratios [PDF]
INCAS Bulletin, 2021 Free-piston heat engines are being examined by a number of international research groups as an option for conservative technology, as they are not limited by the movement of the crankshaft as in conventional engines.
B. KIRUBADURAI +2 more
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Effects of Injector Spray Angle on Performance of an Opposed-Piston Free-Piston Engine
Energies, 2020 A free-piston engine is a novel internal combustion engine which has the advantages of a variable compression ratio and multi-fuel adaptability. This paper focuses on numerical simulation for combustion process and spray angle optimization of an opposed ...
Qinglin Zhang +3 more
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Research on vibration isolation method of a novel power source
Energy Reports, 2020 Free-piston linear generator (FPLG) is a novel power source which combines free-piston engines and a linear electric generator. Piston motion and vibration excitation characteristics of FPLG are quite different from the traditional reciprocating engines.
Jingyi Tian +3 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.X‐ray computed tomography reveals how process‐induced defects evolve from green to sintered states in Fused Filament Fabrication (FFF)‐manufactured 17‐4PH stainless steel. Internal porosity, weakest cross‐sections, and fracture locations show strong correlation with tensile performance, demonstrating the potential of computed tomography (CT)‐based ...
György Ledniczky +3 more
wiley +1 more source