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has been cited by the following article:

• TITLE: Cold-state Experimental Study on Flow Characteristics of Multi-nozzle in Natural Gas Reburning Burner

  AUTHORS: Baoming Chen, Zhongxiao Zhang, Degui Bi

  KEYWORDS: Reburning Burner; Multi-nozzle; Cold-state Flow Field; Numerical Simulation; Covering Effect

  JOURNAL NAME: Energy and Power Engineering, Vol.5 No.4B, October 16, 2013

  ABSTRACT: Based on the prototypes of a 130 t/h boiler, constant proportional cold-state test bench is established, flow characteristics of multi-nozzle in natural gas reburning burner and its influence on the covering effect for the upflow in the furnace are researched. Numerical simulations of this process are also made with standard turbulence model. The results show that air flow fullness in furnace is better in the case of the reburning zone with 8 nozzles compared to 4 nozzles and also coverage effect of the reburning flow for the updraft gas in the furnace is better. In the condition each nozzle airflow velocity is constant, the effect of reburning flow on coverage of up-secondary air is best when the incident angle for four corners is 14.17?, while Center of the furnace wall is 84.57. And while the best incident angle is invariable, the effect of reburning flow on coverage of up-secondary air is best when the speed of reburning gas in the corners of furnace is 51 m/s, the same to the center of the furnace wall’s.