Open cycle gas turbine

Japanese: 開放サイクルガスタービン - かいほうさいくるがすたーびん
Open cycle gas turbine

…Part of the power generated by the turbine is used to drive the compressor, and the rest is used as effective output, so in order to function as a prime mover, the power generated by the turbine must be sufficiently greater than the power that drives the compressor. A type that draws in air from the atmosphere, turns the turbine, and then exhausts it back into the atmosphere is called an open-cycle gas turbine, while a type that runs not only air but also carbon dioxide gas, helium gas, etc. through a closed flow path and heats it with an external heater to create high-temperature, high-pressure gas is called a closed-cycle gas turbine. In the case of a closed cycle, the temperature of the turbine exhaust must be lowered by a precooler before it can be sent back to the compressor. …

*Some of the terms used in the description of "open cycle gas turbine" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…タービンで発生した動力の一部は圧縮機を駆動するのに用いられ,残りを有効出力として利用するので,原動機として作動するためには,タービンの発生動力が圧縮機駆動動力よりも十分大きいことが必要である。大気から空気を吸い込み,タービンを回した後,再び大気に排出する形式のものを開放サイクルガスタービンといい,これに対して,空気だけでなく炭酸ガスやヘリウムガスなどを閉じた流路に流し,外部加熱器で加熱して高温高圧のガスを作る形式のものを密閉サイクルガスタービンと呼ぶ。密閉サイクルの場合,タービン排気を再び圧縮機に送るには,前置冷却器によって温度を下げることが必要である。…

※「開放サイクルガスタービン」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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