在微型渦輪引擎的發展上，燃燒室小、軸心轉速高是兩大特色，因此在如此小的空間內利用噴嘴進行燃油的霧化將是非常困難的問題。離心式霧化器在高轉速下有良好的霧化品質，因此本霧化器在微型渦輪引擎上亦是一個相當良好的燃油噴霧的解決方法。本研究藉由量化量測的方式完整探討離心式霧化器的霧化特性參數，如釋流孔徑、轉速、液體質量流率、測試液體等；噴霧的平均粒徑與粒徑分佈以EPCS(Ensemble Particle Concentration and Size)系統進行量測。而平均粒徑的數據會藉由無因次化參數進行比較分析，探討使用不同測試液體之下，轉速、液體質量流率的相關性與特性，並得出水與航空燃油的SMD修正系數為0.57。最終整理出趨勢與霧化特性以供後續研究者使用。

In micro turbojet engine, the volume of combustor is smaller and the spindle speed is higher than large scale jet engine. The fuel atomization is difficult in such a tiny space. However, the rotating fuel atomizer has successful experience in jet engine. The development and design of small scale rotating fuel atomizer is a way to provide good spray quality for micro turbojet engine. In this study, fuel slinger was completely investigated with different rotating speed, fuel flow rate, orifice diameter, and test liquid. The experimental test were conducted by quantitative measurements. The spray distribution and drop size measured by the EPCS (Ensemble Particle Concentration and Size) systems. From the analysis of nondimensional parameter, the SMD correlated factor between JP-8 and water is 0.57. The predicted SMD equation of JP-8 can be a reference for slinger design and future study.

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