uncleflo
Registered since September 28th, 2017
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Tag selected: turbine.
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Interesting Sailboats: SOLAR PANELS ON SAILS
Saved by uncleflo on February 13th, 2022.
I don't sail but this idea interests me. Why couldn't a turbine of some description be fitted to the underside or even integrated into the keel to add to energy produced That is called an hydrogenerator and many oceanic sailboats use them. On the Vendee Globe, the non stop sailing race around the world most boats have two. They are expensive, with a price around 4/5000 euros. Finally somebody is working actively in what seems to be an obvious way to generate electric electricity on sailboats: Photo-voltaic sails. Till now the technology did not allow for panels flexible enough to allow that but on last years the technology has evolved a lot. It is already possible and it will not be expensive in the future. At least a sail manufacturer is working already actively on that, the UKsails France branch.
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Lessons mechanical fluid loss software aeraulic hydraulic load aerodynamics hydrodynamics
Saved by uncleflo on December 28th, 2019.
Calculation of profiles lift and drag. (flux externes) Forces in aerodynamics and hydrodynamics Major head loss and pressure drop. (internal flows) The friction and turbulence in pipes Sizing pump or turbine in a fluids networks of aeraulic or hydraulic. power of a pump or a turbine The purpose of this site is to initiate providing software and tools ludic reflection, fast and applied to specific projects. By navigating through links with curiosity, you will develop a basic understanding of fluid mechanics that will serve you every day for your projects. As support, a software tool developed in a spirit of pedagogical simplification, brings together the basic tools to handle projects of fluid mechanics. This site provides support online software fluid mechanics:
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Jet Engine PBS TJ100 - PBS
Saved by uncleflo on August 26th, 2019.
Its advantage is its compact design, low weight with a thrust of up to 1,300 N, and low fuel consumption in the given power category. The generator output is 750 W. One of the PBS TJ100 engine versions enables landing on water. The PBS TJ100 engine is a single-shaft jet engine consisting of a radial compressor, radial and axial diffuser, annular combustion chamber, axial turbine and a fixed outlet nozzle. The PBS TJ100 jet engine was developed for UAVs, missiles, light sport aircraft and gliders with an additional engine. We have delivered hundreds of our jet engines for manned experimental aircrafts and unmanned aircrafts all around the world.
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Gurit - Composite Materials Supplier
Saved by uncleflo on July 24th, 2019.
Gurit has established itself as a developer and innovator in the composites industry and positioned itself as the leading global supplier of composite materials, engineering services, tooling equipment, and select parts and systems. Over 30 years experience in the practical application of composites across various market sectors and projects, from small parts to large-scale structures, combined with a unique technical approach enables Gurit to offer the complete composite solution.
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Wind Turbine Design
Saved by uncleflo on November 28th, 2018.
Primary objective in wind turbine design is to maximize the aerodynamic efficiency, or power extracted from the wind. But this objective should be met by well satisfying mechanical strength criteria and economical aspects. In this video we will see impact of number of blades, blade shape, blade length and tower height on wind turbine design. The next big factor which is affecting performance of wind turbine is shape and orientation of blade cross section. A moving machine experiences fluid flow at a different velocity than the actual velocity. It is called as relative or apparent velocity. Apparent velocity of flow is difference between actual flow and blade velocity. Absolute velocity of the flow is shown in first figure, while apparent velocity in the second figure. It is clear that apparent velocity of flow is vectorial difference between actual and blade velocity. The vector difference is shown in the first figure at a particular cross section. A rotating blade will experience an apparent velocity of flow.
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Vertical Axis Wind Turbine Information: How Efficient are Vertical Axis Wind Turbines compared to Horizontal?
Saved by uncleflo on September 8th, 2016.
Are you looking to build a wind turbine, or to buy a windmill, and you want to know whether it is better to get yourself a vertical axis wind turbine or a conventional horizontal windmill? It is a good idea to educate yourself on the differences between vertical and horizontal axis wind turbines. Obviously, you want to get the one that has the best return on investment, whether you will buy a wind turbine or build it yourself.
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Google Patents - Variable speed wind turbine
Saved by uncleflo on April 5th, 2015.
A variable speed wind turbine is disclosed comprising a turbine rotor that drives an AC induction generator, a power converter that converts the generator output to fixed-frequency AC power, a generator controller, and an inverter controller. The generator controller uses field orientation to regulate either stator currents or voltages to control the torque reacted by the generator. The inverter controller regulates the output currents to supply multi-phase AC power having leading or lagging currents at an angle specified by a power factor control signal.
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Performance Evaluation of the NASA GTX RBCC Flowpath, NASA, Glenn Research Center
Saved by uncleflo on September 2nd, 2014.
The NASA Glenn Research Center serves as NASA's lead center for aeropropuision. Several programs are underway to explore revolutiolutionary airbreathing propulsion systems in response to the challenge of reducing the cost of space transportation. Concepts being investigated include rocket-based combined cycle (RBCC), pulse detonation wave, and turbine-based combined cycle (TBCC) engines.
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SR-71 J-58 Powerplant
Saved by uncleflo on June 20th, 2014.
The SR-71 Blackbird is powered by two Pratt & Whitney J-58 turbo-ramjets, each developing 32,500 pounds of thrust with afterburning. The critical problems concerning supersonic flight with air breathing engines are concentrated in the air inlet area. The circular air intakes of the SR-71 contain a center body tipped with a conical spike. The spike is movable, forward for takeoff and climb to 30,000 feet after which, as speed builds up, it moves rearward, controlling the amount of air entering the engine. As it does so, Air Inlet Bypass Doors in the side of the nacelle close to establish the correct flow of air through the engine, holding the supersonic shock wave in it's critical position within the inlet. The engine itself operates at subsonic speed.
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Gas Turbine Performance, Second Edition
Saved by uncleflo on May 15th, 2014.
This book provides a practical guide to the fundamentals of performance, including the requirements of all major applications: power generation, mechanical drive, automotive, marine and aircraft installations. The new edition includes two additional chapters on performance issues of engines in-service and on the techno-economic issues that determine whether a gas turbine project will be profitable.
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