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A pico hydro system made by the Sustainable Vision project from Baylor University [1]. Pico hydro is a term used for hydroelectric power generation of under 5 kW. These generators have proven to be useful in small, remote communities that require only a small amount of electricity – for example, to power one or two fluorescent light bulbs and a TV or radio in 50 or so homes. [2]
The user guide engraved into a model of the Antikythera Mechanism. User guides have been found with ancient devices. One example is the Antikythera Mechanism, [1] a 2,000 year old Greek analogue computer that was found off the coast of the Greek island Antikythera in the year 1900.
Francis type units cover a head range from 40 to 600 m (130 to 2,000 ft), and their connected generator output power varies from just a few kilowatts up to 1000 MW. Large Francis turbines are individually designed for each site to operate with the given water flow and water head at the highest possible efficiency, typically over 90% (to 99% [ 6
Pumped storage plants usually use reversible turbine/generator assemblies, which can act both as a pump and as a turbine generator (usually Francis turbine designs). [4] Variable speed operation further optimizes the round trip efficiency in pumped hydro storage plants.
Pumps - Pumps are another very popular turbomachine. Although there are very many different types of pumps, they all do the same thing. Pumps are used to move fluids around using some sort of mechanical power, from electric motors to full size diesel engines. Pumps have thousands of uses, and are the true basis to turbomachinery (Škorpík, 2017).
The Lewiston Pump-Generating Plant houses 12 electrically powered pump-generators that can generate a combined 240 MW (320,000 hp) when water in the upper reservoir is At night, two 46 ft (14 m) wide by 66 ft (20 m) tall tunnels [ 10 ] divert a substantial fraction (600,000 US gal (2,300 m 3 ) per second) of the water in the Niagara River 4.5 ...
Turbo generators (1 C, 13 P) W. Wind turbines (5 C, 50 P) Pages in category "Electrical generators" The following 72 pages are in this category, out of 72 total.
The pump-turbine units were uprated in July 1972 from their initial rating of 175 MW each to 204 MW each, increasing the plant's overall rating from 350 MW to 408 MW. [ 3 ] [ 16 ] From 1998–1999, the turbine runners for both units were upgraded, resulting in improved flow rates and another power uprate to 225 MW per unit (450 MW total).