Vertical-Axis Wind Turbines Promise Higher Efficiency - ASME
2021年9月8日 · A single vertical turbine has an efficiency in the range of 35 to 40 percent (though vertical turbine researchers are sure that number will soon reach 50 as well). But, as Tzanakis and Hansen demonstrated in a paper published in Renewable Energy in June 2021, when working together—and arranged properly—vertical-axis turbines have the ...
Old Mill in Nantucket - ASME
The Old Mill, a smock type of windmill, believed to be the oldest operating windmill in the United States. Most of its parts are original. This mill is the sole survivor of four that once stood along the range of hills west of the town of Nantucket. The long spar and wheel rotate the top of the mill and turn the sails into the wind.
Concrete Key to Taller Wind Turbines - ASME
2013年8月5日 · Images: Iowa State University. Standard wind turbine towers are routinely designed to be 80 meters tall because that is about the maximum height that can be achieved with the limits of the highway system for transporting and delivering major parts. Of course, taller towers would allow the capture of faster, more sustainable wind energy.
attached to the primary vertical shaft. A second toothed gear on that shaft drives a bevel gear on a secondary vertical shaft which powers the top grinding wheel. This shaft was adjusted with wedges to change the particle size of the meal. The grinding capacity was 500 pounds per week, if the wind was blowing. Primary Gear Set
Harris-Corliss Steam Engine - ASME
This 350-horsepower Corliss type steam engine is an example of a typical late nineteenth century steam engine. The essential feature of Corliss type engines is the valves that admit steam to and exhaust it from the cylinder. The Corliss valve gear made the engine extremely efficient in steam consumption and was the most efficient system for ...
Vertical-Axis Wind Turbines: Time for a Comeback? - ASME
2012年8月14日 · Mark Crawford is an independent writer. A research team at Sandia National Laboratories is undertaking a project to test the feasibility of vertical-axis wind turbine (VAWT) architecture for large-scale deployment in the offshore environment. The goal is to reduce the biggest barrier to offshore wind development—high cost of energy—by 20 ...
Even though commercial produc- tis vertical steam turbine, and manu-tion of the horizontal steam turbine facturing of the horizontal steam tur-was well underway, Emmet decided to bine was discontinued. shift the design of the turbine to a In February 1903, the first vertical vertical configuration. Emmet be- Curtis turbine, a 500-kilowatt unit,
10 Things you can do with a Bicycle - The American Society of ...
2012年2月29日 · Here, we have rounded up ten of the most practical and creative ways that bicycles are serving communities in the developing world. 1. Husk corn Prop a bicycle on a stand, attach this corn sheller, and two people can fill a 90kg sack of corn in 40 minutes, which is about 40 times faster than doing it by hand. One person pedals, the other drops ...
Oliver Evans - ASME
2012年4月25日 · While never achieving his dream of steam-powered land transportation, inventor Oliver Evans (1755-1819) is best known as the inventor of the stationary high-pressure steam engine and a number of innovations in factory automation. Evans was born in Newport, DE, on September 13, 1755, to a family of Welsh settlers.
Curtis 500-kW Vertical Turbine - ASME
The 500-kW Newport engine has two stages of pressure compounding, each consisting of three velocity compounded stages. Six rows of blades rotate on the periphery of turbine wheels when operating. In its final form, the Curtis turbine used up to six stages of pressure compounding with two stages of velocity compounding in each pressure stage. To ...