本研究依美國AMCA(Air Movement and Control Association)測試作業標準流程與標準,完成防颱阻雨百葉阻雨率實驗裝置。再參考文獻中有關防颱阻雨百葉之三維流場模擬與性能分析所歸納之防颱阻雨百葉設計原則,並配合實際組裝百葉及開模製造之考量而調整其外型,以期達到更低壓損、更大流道收縮比及AMCA Class A阻雨率的設計目標。本研究參考文獻中以純數值模擬所產生之防颱阻雨百葉外型,而將葉片之前後導角修正成整合葉片固定溝槽之圓弧狀以配合百葉固定桿,並考量彎曲角度、導角位置對於有效面積及阻雨率之影響,及開模製造過程之限制而調整葉片厚度等幾何參數,完成新型防颱阻雨百葉之設計與製作。本研究以新型防颱阻雨百葉之實測結果顯示:百葉壓損實測值與文獻之模擬值相吻合,差異值為5%;顯示本研究將前後導角與葉片固定溝槽整合而進行之形狀修改對流場無太大影響,為成功之設計。本研究之新型防颱阻雨百葉,經測試其阻雨效能為防颱A級。本研究之新型百葉之有效面積高達50%,比國外同級產品(有效面積42%)高出8%,而阻雨效能、壓損相似。
In this study, a test facility of storm-resistant louver was designed and built in accordance with AMCA 500-L standard, a new pattern of storm-resistant louver based on simulation results in a prior work. The fixture was integrated with the blade of the new storm-resistant louver, and the limitations constrained by the extrusion process have been implemented in the design of the new louver shape. The experimental data of pressure drop agree with the numerical simulation in the prior work with less than 5% discrepancy. This proves that the integration of fixture and blade in this study is successful. The free area percentage new storm-resistant louver is 50%, which is 8% larger than a commercial available louver (42%), with the same pressure drop and the same rain resistant capability, which satisfy the requirement of penetration classification Class A of AMCA 500-L standard.