有鑑於微推進與動力產生系統的需求日益增加，以微燃燒做為能量來源勢必成為一個先驅性與極具挑戰的研究。由於微燃燒因為熱散失問題造成能量消耗，考慮到高速火焰燃燒系統能夠解決主要的熱散失問題，微型爆震波系統概念因此孕育而生，此外，爆震波系統更比傳統燃燒系統有更高的效率。綜觀以上因素，其微型爆震波動力之發展實值得深入探討。
以爆燃波轉變爆震波產生爆震波的方式是一項非常可行的方法，但是目前在微管中爆燃波轉變爆震波現象方面的研究相當少，因此本論文以實驗研究的方式，探討微管中火焰加速及爆燃波轉變爆震波現象，並且提出在點火端之前擴張室(pre-chamber)以穩定點火啟動並促進火焰加速的全新設計概念，來促使發生爆震波。實驗參數包含管徑大小、擴張室尺寸、燃料初始壓力等。
結果發現擴張室對於火焰加速有相當大的幫助，使得1mm到2mm的管徑下皆能使常壓下化學當量氫氧火焰產生爆燃波轉變爆震波現象。並且改變初始壓力，當初始壓力增加時，其爆震波產生距離(induction distance)縮短。在相同管徑下，擴張室尺寸的變化對於較小的管徑的影響較不顯著；而擴張室尺寸對於2mm的管徑則影響的差異性較大。本研究中最小的爆震波產生距離發生在初始壓力為34.5psi下、管徑1mm而擴張室9mm的條件，為116mm。

The increasing demand for micro-power systems for the world-wide extensive applications in microelectromechanical systems (MEMS) and personal utility systems has given a significant impetus on investigations of micro-propulsion and micro-combustion. Concepts of micro-scale detonation systems were proposed recently to resolve the heat loss problems in the micro-combustion system by means of high speed flame propagating in the chamber. Furthermore, the detonation system has much higher thermal efficiency compared to the other traditional low speed combustion systems. In view of these advantages, the micro detonation power systems deserve further in-depth research and developments..
Generation of the detonation in the manner of deflagration-to-detonation transition (DDT) in macro-scales has been shown feasible and successful. However, the research of DDT in a microscale tube is scarce and with challenges so far. Accordingly, in this study we will discuss the phenomenon of DDT in a micro-tube with experimental measurements and further propose the novel design of the pre-chamber to promote flame acceleration and to stabilize the onset of detonation. Experimental parameters include tube sizes, pre-chamber dimensions, and initial pressure of the mixtures.
Results show that the pre-chamber set-up is definitely helpful for flame acceleration, and occurrence of DDT in the stoichiometric hydrogen- oxygen mixture in the 1mm-diameter to 2mm-diameter tubes at atmospheric pressure. Besides, DDT induction distance can be decreased depending on increaseof the initial pressure. For the fixed tube size cases, the effects of pre-chamber are not pronounced in the smaller tube, whereas this influence become significant in the larger 2mm-diameter tube cases. In this study, the shortest detonation induction distance of 116mm was reached at the case of 1mm-diameter tube with 9mm-diameter pre-chamber at 34.5 psia.

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