基於液態燃料具有釋放高動力與能量比之特性，本論文提出小型中芯多孔油注式液態薄膜燃燒器，主要目的為研發以燃燒之快速熱釋放優點，結合光電(暨熱電)轉換達到小型(個人式)動力發電模組之研發。然而，當燃燒器的物理結構縮小至臨界尺寸時(如1公分以下)，傳統式液態燃料之噴霧機構對空氣-燃料之混合無法達到燃燒需求，同時熱循環機制也無法有效地穩住火焰及減緩熱散失的增加。在本論文中，我們對直接注入式液態燃料之介尺寸燃燒器的微小化提出新穎的設計理論，將液態燃料導入多孔性金屬材質，使之在多孔性金屬表面上形成液態燃料薄膜，以達到有效增加燃料之面體比(S/V)的需求，並藉由熱化學所釋放之熱能回傳至多孔性金屬，提供燃油薄膜蒸發至氣態燃料所需之能量。
論文中對於中芯式多孔性微型燃燒器概念與設計作先行之理論分析，並對不同孔隙率與材質的多孔性材質做單元測試，且利用立體微粒影像測速技術以檢定漩渦器所產生之流場結構，利用拍攝火焰影像與CH*自然螢光以分析火焰結構與火焰不穩定機制，將火焰結構型態依雷諾數大小分類成三種，並提出其火焰穩駐機制。最後，將燃燒室金屬壁面以紅外線熱管代替以作為熱輻射發光載體，結合市售光電轉換晶片組整合成燃燒驅動式光電系統，證實小型液態燃油燃燒驅動式光電系統之可行性，未來可結合三五族光電晶片(如銻化鍺)組搭配窄波段發光載體(selective emitter)，如此一來，可以大幅提升系統的整體效率。
小型中芯多孔油注式液態薄膜燃燒器之設計與測試，除了增加對此小型液態薄膜燃燒器的燃燒原理與火焰穩定機制的了解，也提供日後在光電及熱電能源系統的設計參考與選擇。

Utilizing a central-porous medium for a liquid fuel film combustor is an effective method to increase the contact surface area and conduction heat transfer for liquid fuel vaporization and flame stabilization. Based on this concept, a meso-scale liquid fuel film combustor with a central porous inlet was theoretically analyzed and its feasibility was confirmed. Different porosity of the porous medium specimen is tested and swirling inlet was testified having recirculation near the porous medium’s top and in a vicinity of the chamber exit by planar/stereo PIV system.
The effects of porous material type and pore size on the flame structures and combustion characteristics were examined. Porous media made of stainless steel and bronze were tested in the meso-scale combustor with different fuel and air flow rates, equivalence ratios, and pore sizes. The flame structure and its corresponding stabilization mechanism are different between the stainless steel and the bronze porous media combustor. In the stainless steel porous medium, the high specific heat capacity enhances fuel vaporization and fuel-air mixing, and the flame anchor locates on the surface of the porous cap. In the bronze porous medium, due to its low heat capacity, the flame is swept downstream where the recirculation zone above the porous cap offers a low velocity field to help anchor the flame. The flame structure and stabilization mechanism in the chamber can be related to a tribrachial flame. Chemiluminescence measurement and Abel deconvolution are performed to verify the flame structure in the vicinity of the porous cap. In addition, temperature measurements and exhaust gas analysis highlight the differences in combustion characteristics between the both different porous materials. As regards pore size effects, results indicate that there is no obvious difference in flame structure and flame anchoring position, but the stable operating regions of a porous combustor decrease with decreasing pore size due mainly to the concomitant increase in thermal conductivity.
Eventually, the developed central-porous fuel-film combustor was applied to a TPV system. An infrared thermal tube replaces the chamber wall of fuel-film combustor and doubles as an emitter. Integrating commercial PV cells with the infrared thermal combustor was tested and examined by the I-V analyzer.

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