摘要
曝氣溶氧是水產養殖業提供水中生物氧氣最重要的方法。本實驗利用伯努利定理(Bernoulli Principle)之文氏管原理(Venturi tube)及離心力原理(centrifugal force)，設計出兩歀(Ⅰ型、Ⅱ型)高溶氧曝氣機。
首先根據理論提出不同的設計方案，經實驗驗証及修正共設計出兩歀4種不同的曝氣機，分別為Ⅰ型-A、Ⅰ型-B、Ⅰ型-C曝氣機及Ⅱ型曝氣機。實驗程序首先對原始設計及誤差實施修正以得較好的設計方案，然後進行設備規格化以明確訂定設備的適用性及範疇。
經實驗規格化証實，Ⅰ型-A曝氣機標準曝氣效率(SAE)為8.78(kgO₂/ (hr•kw))、Ⅰ型-B曝氣機標準曝氣效率為14.77(kgO₂/ (hr•kw))、Ⅰ型-C曝氣機標準曝氣效率為5.21(kgO₂/ (hr•kw))及Ⅱ型曝氣機標準曝氣效率為32.93(kgO₂/ (hr•kw))，均優於目前最常使用的曝氣水車PWA(其SAE為0. 91kgO₂/ (hr•kw))。本設備可以提供一個高溶氧曝氣環境，不僅對有機物呼吸的新陳代謝有高效率的助益，亦可改善水質環境及節省耗電成本。

Abstract
Dissolved oxygen(DO) of aeration which provides oxygen for fish is the most important oxygen-providing method for aquafarm .This research makes use of Venturi tube (Bernoulli Principle) and centrifugal force to design two kinds of high DO aerators which are referred to as typeⅠ-A, typeⅠ-B, typeⅠ-C and type Ⅱ.
This design process includes prototype design, validation, improvement and finally standardization of the aerators.
After improvements ,the test results show that the Standard Aeration Efficiency (SAE) of typeⅠ-A,Ⅰ-B,Ⅰ-C and Ⅱ are 8.78(kgO₂/ (hr•kw)), 14.77(kgO₂/ (hr•kw)), 5.21(kgO₂/ (hr•kw)), and 32.94 (kgO₂/ (hr•kw)) respectively. All of the SAEs are better than that of the Paddle Wheel Aerator (PWA) commonly used by fishery and has SAE of 0.91(kgO₂/ (hr•kw)).
These kinds of aerators do not only clearly provide high DO for the aquafarm environment, but also consume less energy for electricity and less cost for manufacturing.

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