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題名 | 熱聲效應史特林引擎=Thermo-Acoustic Stirling Heat Engine |
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作者 | 周鑑恆; | 書刊名 | 物理教育學刊 |
卷期 | 13:2 2012.12[民101.12] |
頁次 | 頁103-113 |
分類號 | 446.4 |
關鍵詞 | 熱聲效應; 史特林引擎; Thermo-acoustics; Stirling engine; |
語文 | 中文(Chinese) |
中文摘要 | 熱聲效應史特林引擎可分為行波型和駐波型兩種,駐波型的熱聲效應史特 林引擎格外簡單。本文提出駐波型史特林引擎的工作原理、構造與製作方法,並 偵測自製駐波型熱聲效應引擎的發聲頻率,並分析熱片堆的位置和發聲強度的關 係;發現駐波型熱聲效應史特林引擎發出的聲音,主要是由管狀共振腔內之氣柱 基頻振動模式所造成,設置熱片堆的位置,須使得氣柱中某一部分的氣體在振動 時滿足熱機循還,而能將熱能轉換成聲能。 |
英文摘要 | There are two types of thermo-acoustic Stirling heat engines. Comparing with the traveling wave thermo-acoustic Stirling engine, the standing wave thermo-acoustic Stirling engine is relatively simpler. A study for the structures and working principles of standing wave thermo-acoustic Stirling engines is presented. We build three standing wave thermo-acoustic Stirling engines. Probing the frequency of the acoustic emitted from these engines, we conclude that the fundamental normal mode of the gas in the engines is mainly excited. When the stack is located at a suitable position, the changes of the volume and pressure of a portion of gas in the engine then is similar to that of working fluid in mechanical heat engines. Therefore, the vibrations of the normal modes are excited significantly. |
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