For faster navigation, this Iframe is preloading the Wikiwand page for 蒸汽機.

蒸汽機

瓦特蒸氣機

蒸氣機zing1 hei3 gei1steam engine)係一個能夠將蒸汽中嘅熱能轉換為動能,以前火車頭同輪船都曾經用過蒸氣機驅動。

熱力學上已知,假設容量物質量不變,溫度 上升會令一團氣體嘅壓力 上升(理想氣體狀態方程式);所以想像一條好似圖 S 入面嗰條噉嘅空心管,如果有方法令黃色嗰笪空間有熱嘅氣體同冇咁熱嘅氣體交替噉存在,就會令到個活塞(piston)交替噉受熱氣體嘅強壓力同凍氣體嘅弱壓力( 週期性轉變,係時間嘅函數),於是個活塞就會週期性噉打橫移動,帶動一個輪旋轉-而如果嗰個輪駁咗落去一個(例如)轆嗰度,就會做到「用蒸氣嘅能量帶動物件旋轉」(輸入:蒸氣嘅移動;輸出:旋轉嘅動能)嘅效果[1][2]

蒸氣機有好多用途:蒸氣機能夠產生旋轉,而旋轉嘅動能(唔淨只係蒸氣機嘅)可以用嚟做好多嘢;舉個簡化嘅例子說明,想像一個火車頭,火車頭上面有部蒸氣機,以及產生蒸氣要用嘅架生同物料(水同燃料等),令嗰部蒸氣機可以係噉行一段時間,而個火車頭嘅設計係用咗好多個齒輪同輪軸,用部蒸氣機嘅旋轉部份嘅旋轉帶動個火車頭嘅轆跟住旋轉,如果部蒸氣機嘅力夠勁,就能夠令個火車頭以高速前進[1][2]

睇埋

[編輯]

[編輯]
  1. 1.0 1.1 Hills, Richard L. (1989). Power from Steam: A history of the stationary steam engine. Cambridge: Cambridge University Press.
  2. 2.0 2.1 Hunter, Louis C. (1985). A History of Industrial Power in the United States, 1730–1930. Vol. 2: Steam Power. Charolttesville: University Press of Virginia.
{{bottomLinkPreText}} {{bottomLinkText}}
蒸汽機
Listen to this article

This browser is not supported by Wikiwand :(
Wikiwand requires a browser with modern capabilities in order to provide you with the best reading experience.
Please download and use one of the following browsers:

This article was just edited, click to reload
This article has been deleted on Wikipedia (Why?)

Back to homepage

Please click Add in the dialog above
Please click Allow in the top-left corner,
then click Install Now in the dialog
Please click Open in the download dialog,
then click Install
Please click the "Downloads" icon in the Safari toolbar, open the first download in the list,
then click Install
{{::$root.activation.text}}

Install Wikiwand

Install on Chrome Install on Firefox
Don't forget to rate us

Tell your friends about Wikiwand!

Gmail Facebook Twitter Link

Enjoying Wikiwand?

Tell your friends and spread the love:
Share on Gmail Share on Facebook Share on Twitter Share on Buffer

Our magic isn't perfect

You can help our automatic cover photo selection by reporting an unsuitable photo.

This photo is visually disturbing This photo is not a good choice

Thank you for helping!


Your input will affect cover photo selection, along with input from other users.

X

Get ready for Wikiwand 2.0 🎉! the new version arrives on September 1st! Don't want to wait?