948 resultados para Stirling Castle (Stirling, Scotland)
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Mode of access: Internet.
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Mode of access: Internet.
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Análisis mediante CFD y validación experimental de un sistema de carga para un motor Stirling. Validado y analizado experimentalmente en un motor de 5 pistones de doble acción.
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Stirling engines with parabolic dish for thermal to electric conversion of solar energy is one of the most promising solutions of renewable energy technologies in order to reduce the dependency from fossil fuels in electricity generation. This paper addresses the modelling and simulation of a solar powered Stirling engine system with parabolic dish and electric generator aiming to determine its energy production and efficiency. The model includes the solar radiation concentration system, the heat transfer in the ther- mal receiver, the thermal cycle and the mechanical and electric energy conversion. The thermodynamic and energy transfer processes in the engine are modelled in detail, including all the main processes occur- ring in the compression, expansion and regenerator spaces. Starting from a particular configuration, an optimization of the concentration factor is also carried out and the results for both the transient and steady state regimes are presented. It was found that using a directly illuminated thermal receiver with- out cavity the engine efficiency is close to 23.8% corresponding to a global efficiency of 10.4%. The com- ponents to be optimized are identified in order to increase the global efficiency of the system and the trade-off between system complexity and efficiency is discussed.
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Acknowledgments Financial Support: HERU and HSRU receive a core grant from the Chief Scientist’s Office of the Scottish Government Health and Social Care Directorates, and the Centre for Clinical epidemiology & Evaluation is funded by Vancouver Coastal Health Authority. The model used for the illustrative case study in this paper was developed as part of a NHS Technology Assessment Review, funded by the National Institute for Health Research (NIHR) Health Technology Assessment Program (project number 09/146/01). The views and opinions expressed in this paper are those of the authors and do not necessarily reflect those of the Scottish Government, NHS, Vancouver Coastal Health, NIHR HTA Program or the Department of Health. The authors wish to thank Kathleen Boyd and members of the audience at the UK Health Economists Study Group, for comments received on an earlier version of this paper. We also wish to thank Cynthia Fraser (University of Aberdeen) for literature searches undertaken to inform the manuscript, and Mohsen Sadatsafavi (University of British Columbia) for comments on an earlier draft
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This layer is a georeferenced raster image of the historic paper map entitled: Edinburgh, reduced under the Superintendence of the Society for the Diffusion of Useful Knowledge with the permission of Messrs. Laing and Forbes from their large plan; drawn by W.B. Clarke, Arch[t]; engraved by E. Turrell. It was published by the Society of the Diffusion of Useful Knowledge [by] George Cox in Jany. 1st, 1853. Scale [ca. 1:9,500]. Covers Edinburgh, Scotland, United Kingdom.The image inside the map neatline is georeferenced to the surface of the earth and fit to the 'British National Grid' coordinate system. All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map.This map shows features such as roads, railroads, drainage, built-up areas and selected buildings, ground cover, parks, and more. Relief shown by hachures. Includes also illustrations and inset: Edinburgh Castle.This layer is part of a selection of digitally scanned and georeferenced historic maps from The Harvard Map Collection as part of the Imaging the Urban Environment project. Maps selected for this project represent major urban areas and cities of the world, at various time periods. These maps typically portray both natural and manmade features at a large scale. The selection represents a range of regions, originators, ground condition dates, scales, and purposes.
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"A catalogue of Spanish books and manuscripts": vol. 8, p. [xxvii]-xlvii.
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"The earlier portion is derived from letters, many of them originals, deposited in The Cottonian and Harleian collections in the British museum. The latter portion is transcribed from a contemporaneous manuscript [owned by John Bowes ... of Streatlam castle]"--Pref., p. ix.
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This paper is based on the undergraduate dissertation of Lindsey Stirling, which was supervised by Karen Milek, and which won the Society of Medieval Archaeology's John Hurst Memorial Dissertation Prize Acknowledgements This research would not have been possible without the assistance of Dr Martin Goldberg at the National Museum of Scotland, Lynda Aiano at Tankerness House Museum, Orkney, and Beverley Ballin Smith. The authors also wish to thank the two anonymous reviewers who provided valuable comments on earlier versions of this paper.
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This paper is based on the undergraduate dissertation of Lindsey Stirling, which was supervised by Karen Milek, and which won the Society of Medieval Archaeology's John Hurst Memorial Dissertation Prize Acknowledgements This research would not have been possible without the assistance of Dr Martin Goldberg at the National Museum of Scotland, Lynda Aiano at Tankerness House Museum, Orkney, and Beverley Ballin Smith. The authors also wish to thank the two anonymous reviewers who provided valuable comments on earlier versions of this paper.