煤炭氣化(Coal Gasification)技術的研發，乃在氣化過程中煤炭經熱分解後和水蒸氣作用而產生可燃性煤氣。而在用於高效率複循環機組IGCC(Integrated Gasification Combined-Cycle Project)可使發電之淨熱效率增至42%左右。因此IGCC技術無論是在技術成熟性、效率評估、環保性能等方面都是最卓越的發電技術，也是最可行的燃煤發電技術。
本研究將以計算流力軟體Star-CD建立CFD模擬燃燒程序，分析氣化煤氣與天然氣在CPR（Controlled Profile Reactor）之中的燃燒特性，用以在將來評估氣化煤氣於CPR中燃燒之能力。本研究採用之計算及物理模式包括：SIMPLE數值計算法則、High Reynolds Number/k-ε紊流模式、非絕熱PPDF平衡燃燒模式、熱量及動量傳遞模式。Star-CD三維格點的建立則採用多重區塊格點結構法。進行模擬之三維燃燒室流場不僅包括主要燃燒室本身，同時完整地包括靠近進氣口之傘狀擴張區之進氣流場，以及流場下游之傘狀收縮區之出口流場。
在本研究中發現，equivalence ratio=1.05、150KW反應熱量之天然氣，swirl Number為1.5的secondary air，雖然燃燒溫度偏高，但其流場符合本研究之假設條件下之模擬，而與氣化煤氣的比較下，燃燒溫度偏低的煤氣燃燒高溫區產生於前端傘狀擴張區而後隨下游溫度遞減，NO生成量也少於天然氣之燃燒，其中，CO的含量愈低的氣化煤氣，所燃燒產生的NO也就能相對的被抑制。

The study of coal gasification technology is partial combustion of coal and oxidized by air, oxygen, steam, and carbon dioxide during gasification process. Integrated Gasification Combined-Cycle Plant may increase the efficiency of 42% with possible improvements. So IGCC is the best technology regardless of operating, efficiency, and environment protecting.
In this study, Computation Fluid Dynamics Program, Star-CD, analysis combution flow of natural gas and coal one in Controlled Profile Reactor in order to estimate the ability of coal gas in CPR combustion. The computational and physical models adopted in the present study include: SIMPLE computation method, high Reynold number/k-ε two-equations turbulence model, non-adiabatic PPDF equilibrium combustion model and the transport equations of mass, energy, and momentum. The three-dimensional grids are generated adopting the concept of multiple block-structured mesh. The combustion flow simulated in the present study includes combustion flow inside the chamber, inflow between inlet and top quarl, and outflow in the bottom quarl.
By the study with a 150 kW natural gas at an equivalence ratio of 1.05 and secondary-air swirl number of 1.5, combustion measurements of velocities show generally good agreement with predicted values, although the temperature departure appear between both sides. For the comparison of coal gas, high combustion temperature zones of coal gas whose lower combustion temperature appear top quarl and temperature decreases progressively while flow move down. Generation of NO is also less than one by natural gas. And coal gas involves less CO will produce less NO during combustion.

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