40. In a gas turbine engine, which device is used during the compression process to enhance
the specific power of the engine?
(A) Recuperator
(B) Intercooler
(C) Air intake
(D) Exhaust uptake
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統計: A(175), B(705), C(186), D(185), E(0) #2570854
統計: A(175), B(705), C(186), D(185), E(0) #2570854
詳解 (共 2 筆)
#7308909
In a gas turbine engine, which device is used during the compression process to enhance堤糟 the specific power比功率 of the engine?
40. 在燃氣渦輪引擎中,壓縮過程中會使用哪種裝置來增強引擎的「比功率(specific power)」?
(A) 回熱器 (Recuperator) — 用於回收排氣熱量來預熱進氣,主要提高「效率」而非「比功率」
(B) 中間冷卻器 (Intercooler) — 正確答案
(C) 進氣口 (Air intake)
(D) 排氣道 (Exhaust uptake)
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它會把第一級壓縮後的高溫空氣冷卻。
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冷卻後的空氣密度增加、體積縮小。
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進入第二級壓縮時,壓縮機需要的壓縮功(Compressor Work)就會顯著減少。
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