近年來歐、美、日等工業先進國家致力發展二十一世紀的新式先進燃煤技術，如整合型氣化煤複循環系統(IGCC, Integrated gasification combined-cycle)，這些系統均會產生高溫高壓之氣體及飛灰，在進入氣渦輪機前必須有效的控制，方能使系統有效運作。 本年度計畫將延續前年計畫(名稱：進階兩段過濾器除塵系統分析與設計)流動式兩階段顆粒床過濾系統進階設計中，類二維儲槽與類二維過濾器實驗所得之結果為基礎，進行三維冷性能兩階段顆粒床過濾系統的設計與開發。計畫中將針對流動式兩階段顆粒床過濾系統中的過濾器部分，進行類二維不同質量濾材流場實驗與分析，以及三維冷性能兩階段顆粒床過濾系統模型的進氣口速度場分佈和三維壓降模型，進一步解析影響兩階段過濾器系統中的過濾效率指標。 因此，在計畫中將測試於三維過濾器系統中置入兩種不同粒徑大小濾材的過濾效率，並量測進氣口氣體速度分佈及整體壓降，藉以找出最佳的過濾效率設計參數，以達到採兩階段濾材過濾提高過濾效率的目的。計畫中也將先以類二維實驗的方式，觀察並分析在過濾器內部兩種不同濾材質量流率情況下的速度場分佈，如此一來便可預先知曉將來兩種不同濾材質量流率會造成何種影響。 上述計畫三維冷性能兩階段過濾系統測試模型實驗所得之結果，將可作為未來進行三維熱模實驗的基礎，計畫的最終目標則是可為建立商業化之高溫燃氣流動式兩階段顆粒床過濾系統而邁進。 The Integrated gasification combined-cycle system for power generation and the advanced coal-fired power plants have been developed in United States, Europe and Japan in recent years. High temperature gases are generated during the gasification the biomass or the coal. The high temperature gases contain many dust particulates and fly ashes which should be filtrated before entering gas turbine. This project will extend results of previous year and develop two-stage filtration system continuously. The flow pattern and velocity profiles can be obtained from quasi-2D experiments in different mass flow rate of two-stage filter media. In order to analyze filtration efficiency of two-stage filter system, this study suppose to measure inlet air velocity profile and the pressure drops of the entirety system. These results will help to understand flow behavior of two filter media in filter vessel. With the result of this project, we can design the 3-D two stage moving granular bed for the cold test. The final goal of the project, we wish the design rules for the commercialized moving granular bed filter can be developed. 研究期間：10001 ~ 10012
