本實驗採用直徑30 mm之水旋風分離器，使用馬鈴薯澱粉當粉體，分別進行實驗和模擬的分析，實驗方面探討不同進口壓力下和溢流管深淺之影響，分析溢流和底流的粒徑分佈以及分離效率，模擬方面以多相流VOF模式模擬空氣核心並分析流場，以實驗與數值模擬為基礎，進而發展新樣式水旋風分離器-薄膜水旋風分離器。 實驗結果顯示，當進口壓力越大則整體分離效率越好。在不同溢流管深的實驗結果顯示，不管任何溢流管的深淺皆會因進口壓力增大而分離效率有所提升，以溢流管深為30 mm最理想。本研究的薄膜水旋風分離器在相同的操作條件下，薄膜水旋風分離器的分流比和新定義的澄清效率(Ec)皆會優於傳統型式，而整體的平均效率提升約16 %以上，大大提升水旋風分離器的整體分離效率，具有一定發展性。 This study uses potato starch as particles to realize its classification in a 30 mm diameter hydrocyclone. In the experiment, the effects of variations in feed pressure and vortex finder depth on particle size distribution and separation efficiency were analyzed. In the simulation, the air core was simulated successfully by VOF model. Based on experimental and simulation results, a new kind of hydrocyclone, membrane hydrocyclone was developed. According to experiment results, the higher the feed pressure, the higher the separation efficiency. The hydrocyclone with 30 mm vortex finder inserted into the cylindrical part of the hydrocyclone has the best separation efficiency. The new developing membrane hydrocyclone is better than the traditional hydrocyclone in flow split and clarification efficiency (Ec) under the same operation conditions.
