...Steam turbines do not have much torque, but they can produce a lot of power by rotating at high speeds. This characteristic made them ideal as prime movers for driving generators, and their development coincided with the beginning of the use of electricity and the expansion of demand for it. From [Turbine]…The fluid expands in a passage fixed to the casing, forming a high-speed jet, which is designed to be blown just right against the rotating blades. In this way, the part fixed to the casing that creates the high-speed flow and the row of rotating blades work together to form the basic element that generates work, and are called pressure stages. Even with a large pressure difference, it is possible to extract work by successively reducing the pressure by placing multiple pressure stages. … *Some of the terminology that refers to "pressure stage" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…蒸気タービンはトルクはあまり大きくないが,高回転数とすることにより大きい出力を出せるという特徴をもっており,この特徴が発電機駆動用原動機としてうってつけのものであったため,その進歩はまさに電力使用の始まりとその需要の拡大と軌を一にしている。 【タービン】より…流体は車室に固定して設けられた通路で膨張して高速の噴流となり,ちょうどうまく回転羽根に吹きつけるように作られている。このように,車室に固定され高速流を作る部分と回転羽根列とが1組となって仕事を発生する基本要素を構成し,圧力段と呼ばれる。大きい圧力差でも,複数の圧力段をおくことによって,圧力を順次落として仕事をとり出すことが可能である。… ※「圧力段」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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