The Stoichiometric Ratio Effect on the Combustion Characteristics of Lower NOx Burner

• Main Authors: C. T. Chiu, 邱俊騰
• Other Authors: H. K. Ma
• Format: Others
• Language: zh-TW
• Published: 2002
• Online Access: http://ndltd.ncl.edu.tw/handle/27608620085944199426

碩士 === 國立臺灣大學 === 機械工程學研究所 === 90 === A small-scale burner system with the staged air was designed and used to study the flame structure, temperature profile, O2, and emission of thermal NOx in the propane combustion. The burner was designed with three staged airs. The experimental works are studied under the same overall air supply condition. A series of experiments were conducted to reduce the flame temperature by varies the three stages air ratio, and find out the optimal operating condition for reducing the NOx Emission in the burner system. During the three staged air combustion, the mixing of fuel and air in preheating zone controlled the major emission of NOx. The variation of second and third staged air percentage will help to lower the NOx emission further. The finding of this study may aid the design of the Lower NOx burner system.