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題 名 | 機車空氣濾清器之設計=Design of Air Cleaner for Motorcycle |
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作 者 | 朱曉明; 鍾志琛; 曾正義; 劉建志; 郭世雄; 何孟儒; 賴致彤; | 書刊名 | 永達學報 |
卷 期 | 6:2 民95.02 |
頁 次 | 頁1-11 |
分類號 | 446.6 |
關鍵詞 | 空氣濾清器; 直進氣; 側進氣; 進氣效率; Air cleaner; Direct intake; Side intake; Intake efficiency; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究主要設計一個空氣濾清器在不影響進氣效率的條件下,提升其粉塵捕捉量。設計理念為將空氣濾清器的進氣方式改成側進氣式,並加大其入口面積,留下空氣中的粉塵於集塵室內。在設計初期階段使用電腦輔助設計(CAD)軟體設計出空氣濾清器,再運用電腦繪圖軟體來建構空氣濾清器內部網格型態,配合計算流體力學(CFD)分析軟體計算出空氣濾清器內部流場的變化,運用流量測試檯來驗證本設計理念之合適性。結果顯示,在直進氣的條件下,模擬值與實驗值的最大誤差為4.44%,而在側進氣的條件下,模擬值與實驗值的最大誤差為4.30%,因此本研究所建立的計算流體力學分析模式可準確預估流量隨壓差變化的關係。側進氣會提升粉塵捕捉效率,但為了克服側進氣對流量所造成的影響,因此本研究將側進氣式入口面積加大1.4倍,可將其流量提升至相當於直進氣式的流量,但須確認強度以防有縮口的現象。實驗顯示,側進氣式確實可增加粉塵捕捉量於集塵室中,其增加率為6.39%,並減少濾芯的粉塵附著量,其減少率為10.48%,可增加濾芯的壽命,已達到預期之效果。 |
英文摘要 | The main purpose of this study is to design an air cleaner which is able to improve the dust collecting amount under a condition not affecting the intake efficiency. The design concept of the air cleaner is to change its intake method into side intake type and enlarge the area of its intake port. At the initial stage of the design, the CAD software was used to design the air cleaner, and then the GAMBIT software was used to construct the internal grids of the air cleaner. The change of the internal flow field in the air cleaner was calculated by the aid of CFD analysis software and then the flow bench was used to test the applicability of this design concept. The result indicates that the maximum error of the simulated value and the experimental value is 4.4% for direct intake and 4.40% for side intake. Therefore, the analysis model of Computational Fluid Dynamics established by this research can be used to predict the change of flow rate with the pressure difference. Side intake may increase the dust collecting efficiency. However, in order to overcome the influence produced by the side intake, this study increased the area of the side intake port by 1.4 times. This would increase the flow rate to an amount equal to the flow rate of the direct intake, but the strength must be determined to prevent the occurrence of necking. The experiment shows that side intake is indeed able to increase the dust amount collected in the dust collecting chamber by 6.39% and reduce the dust adhesion amount of the filter element by 10.84%. Hence, side intake is proven to be able to lengthen the service life of the filter element to attain the expected effect. |
本系統中英文摘要資訊取自各篇刊載內容。