Lean Premixed and Low NOx Combustor with Recirculation Ratio of Fuel Gas Controllable
This work deals with the dynamic behaviors and recirculation rate characters of a lean premixed and low NOx gas turbine combustor. Several experiments are performed varying operation parameters under cold-state and atmospheric pressure condition. Axial velocity and its RSM are measured by constant temperature hot wire anemometer and averaged recirculation velocity is measured by dynamical pressure probe. Characteristics of dimensionless velocity field are found to agree with theoretical analysis of free jet and values of turbulent intensity in flow field are relative low. Recirculation rate is found to be influenced by primary air stoichiometric ratioα1, secondary air stoichiometric ratioα2 and geometric configuration L between recirculation baffle and secondary air distributors. The relationship figures are obtained which could be used as a basis for adjusting recirculation rate to achieve a steade and efficient combustion when fuel components change.
Dual-gas resources polygeneration Gas turbine combustor Lean premixed Dynamic behavior Recirculation rate
Qingwei Fan Chengwen Tian Shien Hui Qulan Zhou Tongmo Xu
School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an, 710049, China
国际会议
2007杭州国际动力工程会议(The International Conference on Power Engineering 2007)
杭州
英文
2007-10-23（万方平台首次上网日期，不代表论文的发表时间）