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Showing 1 to 20 of 20 for “"Stirling engine"”.
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Design Exploration of a Miniaturized Stirling Engine
… applications, typically hovering around 2% [1]. Stirling engines, with their proven capability to attain high thermodynamic efficiency (30-40%), offer a promising solution if this efficiency can be maintained in a miniaturized form [2]. This study delves into the design space of a miniaturized …
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Exciting youth about science and engineering : the Stirling Engine class
The problem of a lack of science and engineering opportunities for youth has been identified. While other programs and attempted solutions exist, a novel approach involving creating self-contained project classes, called modules, and trading them between institutions is proposed. This idea intends …
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A CFD analysis of the pressure drop through misaligned Stirling engine regenerators
… misaligned cases. As a result of this thesis, Stirling designers can confidently disregard alignment and spacing when assembling wire mesh regenerators, and can more accurately calculate the pressure losses.
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An integrated geometric and thermodynamic performance model of the 2.670 Stirling Engine
2.670 is a required mechanical engineering class taught during the Independent Activities Period (IAP) at MIT in which each student constructs a Stirling Engine. For the most part, all of the engine parts are uniform, but if so desired, students are allowed to make design changes to certain parts …
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Active vibration control for a free piston stirling engine with linear alternator FPSE/LA
… generators into action in 2013. The β-type Stirling engine (FPSE/LA) used for micro combined heat and power systems (MCHP) is a synchronous machine that is designed and tuned to operate at 50Hz ± 0.5Hz. This type of technology has to comply with the new regulations that imposes a<br/>wider …
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Development of the machine shop instruction and the Stirling Engine Project for 2.670, ME Tools
… Institute of Technology, Dept. of Mechanical Engineering, 1996.
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Exergy analysis of a Stirling cycle
In this dissertation the analysis of the Stirling engine is presented, this research topic falls within the category of thermal energy conversion. The research that was conducted is presented in three chapters of which the topics are: the effects of allocation of volume on engine performance, the …
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Waste heat recovery in automobile engines : potential solutions and benefits
… of the energy consumed by an internal combustion engine is wasted, capturing much of that wasted energy can provide a large increase in energy efficiency. For example, a typical engine producing 100 kilowatts of driveshaft power expels 68 kilowatts of heat energy through the radiator and 136 …
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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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Estudo teórico de um motor stirling de pistão livre
… 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 the.models …
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Combined heat and power: technology review and analysis for a residential building
… USA. Three Micro-CHP systems are chosen: Otto engine, Stirling engine, and fuel cell. Also two locations, Chicago and Atlanta, are selected to represent the northern and southern region. The calculations are based on models in TRNSYS and BHKW Plan. The results show, that the fuel cells, …
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Influence of sinusoidal motion on Stirling engines
Stirling engines have a high potential to produce renewable energy due to their ability to use a wide range of sustainable heat sources and their high theoretical efficiencies. They have not yet achieved widespread use and commercial Stirling engines have had reduced efficiencies compared to their …
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Simulation of concentrated photovoltaic cooling system
… paper reports work underway in converting a dish-Stirling system to a dish-PV system at UNLV. The existing SAIC dish---Stirling system is being retrofitted with new fixed-focus facets and an Amonix photovoltaic receiver to replace the Stirling-engine/generator package. As is the case with …
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Low-grade Thermal Energy Harvesting and Waste Heat Recovery
… the overall energy scenario. Efficiency of heat engines deteriorates with decrease in hot-side temperature, making low-grade heat recovery complex and economically unviable using the current state-of-the-art technologies, such as Organic Rankine cycle, Kalina cycle and Stirling engine. In this …
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Microreactor for remote Canadian communities
… is passively cooled through natural convection. Stirling engines are used to drive the electrical generators. The hot cylinders of the Stirling engines are located in the unpressurized reactor vessel and are heated directly by the primary molten lead coolant. Preliminary neutronic and …
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Untersuchungen zur Optimierung eines solaren Niedertemperatur-Stirlingmotors
… Einstrahlung einen solaren Niedertemperatur-Stirlingmotor zu entwickeln, berechnen, konstruieren und fertigen, experimentelle Untersuchungen durchzuführen sowie die Ergebnisse auszuwerten. Des Weiteren war im Rahmen dieser Arbeiten die Gültigkeit der Schmidt-Theorie für den …
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Optimal Control of Stirling Engines
… zur Leistungsoptimierung der Kolbenpfade von Stirling-Motoren entwickelt, die auf der Theorie der optimalen Steuerung beruht. Für die effiziente praktische Umsetzbarkeit ist dabei ein geringer numerischer Aufwand des eingesetzten thermodynamischen Modells entscheidend. In detaillierten …
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Waste heat recovery in aluminum plants by means of Stirling engines
… en puissance utile à travers des machines Stirling. La récupération des déchets et leur conversion ont été traitées par l’auteur dans deux articles scientifiques présentés dans cette thèse. Les derniers chapitres de la thèse sont dédiés à la discussion de ce projet de recherche et aux …
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Možnosti mikrokogenerační výroby v místech, kde nejsou primárně dostupná plynná, nebo kapalná paliva
Tato bakalářská práce se zabývá využitím mikrokogeneračních jednotek v místech, kde nejsou primárně dostupná plynná, nebo kapalná paliva. V rešeršní části jsou popsány dostupné technologie a aktuální stav trhu s mikrokogeneračními jednotkami, které využívají pevná paliva, především biomasu. V …