針對近期來備受重視的生質能源與低熱值燃料–氣化合成氣於微型氣渦輪引擎的應用所引起的問題，吾人特別提出氣化合成氣觸媒篩網駐焰燃燒室的概念，利用觸媒燃燒可解決燃燒室尺寸限制造成渦輪葉片熱點產生的問題，不需於燃燒後再混入冷空氣，簡化燃燒室設計，並且運用在氣化合成氣貧油燃燒更低的燃氣比，擴張燃料可燃極限與增加燃燒穩定性進行穩駐燃燒。吾人首先利用蜂巢式觸媒測試發現有出口溫度過低與觸媒容易因高於操作溫度而受損，使蜂巢式觸媒在實際燃燒室操作上有困難。
為了保護觸媒段，本實驗使用觸媒網轉化小部分燃料產生反應熱，使燃料在氣相反應區達到點燃溫度範圍內穩駐燃燒，使觸媒溫度不因高溫損毀。但燃燒室內流體速度較快，導致氣相反應區停滯時間不夠而不易穩駐火焰，所以在觸媒段下游擺置篩網擾動流體，使流體在此區產生渦流，增加局部停滯時間使氣相反應穩駐燃燒而達到理想出口溫度。吾人先找出適用於氣渦輪引擎觸媒燃燒室的燃料成份比例，發現隨著燃料中H2比例的增加，不僅壁面溫度會增加同時也會幫助下游氣相反應區穩駐。
進一步研究固定燃料體積比，流體速度改變下游篩網駐焰器之特性，並量測觸媒壁面溫度、出口溫度與氣體分析結果，發現隨著速度加快，篩網網格數增加、篩網與觸媒網距離增長、篩網數增加，能將氣相反應區火焰完全穩駐燃燒，並找出本實驗適用於微型氣渦輪引擎之操作區間圖，證實觸媒篩網駐焰燃燒室應用於微型氣渦輪引擎之可行性。

In view of the increasing intensive attention of the biomass energy and low heating value fuels as applied in miniature gas turbines for electricity generation, in this thesis we propose a novel concept of catalytic mesh and screen mesh for use in the miniature gas turbine combustors to stabilize the low-BTU syngas combustion. Catalyst provides the outstanding features of stable reactions for low-BTU, low temperature and ultra lean fuels, which are suitable for conditions of gas turbine combustion burning syngases. In initial tests with honeycomb catalysts, we found that in the operation the honeycomb catalyst tends to be over-heated on the catalyst surface and causing sintering on the catalyst bed structure. In addition, the output temperature tends to be too low to sustain the gas phase reaction downstream. Therefore, honeycomb catalysts will be suitable for smaller operation range and should be operated with more precise operation conditions.
The novel concept for catalytic combustion of low-BTU syn-gas in a gas turbine combustor is to first catalytically convert a portion of the fuel, mainly highly active hydrogen, to raise the temperature of the fuel-air mixture stream so that gas phase reaction of the high speed mixture leaving the catalyst bed can be stabilized downstream or by mesh flame holder. The outstanding feature of this concept is to avoid causing over-heating and sintering of the catalyst bed as well as to sustain and stabilize a low-temperature flame downstream to have complete combustion of the low-BTU syn-gas.
The combustion and stabilization characteristics of screen mesh flame holders in different mixture velocities and different components of fuels are investigated by measurinf the catalyst temperature, exiting temperature, and exhaust gas analysis. Gas phase reaction will be enhanced by screen mesh flame holder when increasing mesh per inch, distance from catalytic mesh, and number of the screen meshes in higher velocity. The feasibility and the operational characteristics of the catalytic mesh-stabilized combustor for miniature gas turbine burning syngas are investigated and proven in this study.

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