In thermal tangentially fired boiler, the flame stability mainly dependent on the central swirl strength which characterizes the mixing between the air and fuel. In this work, numerical investigation is performed on 600MW pulverized coal tangentially fired dry-bottom boiler and validated with experimental data. The main focus of the work is to study the effects of burner firing angle and mass flow rate on the flow characteristics inside the burner. The important feature of the model is a tangential fired geometry in furnace where four burners are kept at the corners of the furnace for generating swirling vortex in the center tangentially, which decides the flame propagation effectiveness and time to sustain flame for longer time and combustion efficiency. Optimization is performed for different design parameters like burner velocity and firing angle with objective function of enhancement of mixing efficiency in the furnace. From that the designer of optimization and simulation makes it possible to find the optimum design and operating parameters. The literature is reviewed to understand the base case as shown in Figure 1 is simulated using the burners angle& velocity as mentioned in Table 1 and the numerical results for the base parameters are compared with the experimental results.

"/> Burner, flame, mixing, tangentially fired boiler, vortex.

"/> In thermal tangentially fired boiler, the flame stability mainly dependent on the central swirl strength which characterizes the mixing between the air and fuel. In this work, numerical investigation is performed on 600MW pulverized coal tangentially fired dry-bottom boiler and validated with experimental data. The main focus of the work is to study the effects of burner firing angle and mass flow rate on the flow characteristics inside the burner. The important feature of the model is a tangential fired geometry in furnace where four burners are kept at the corners of the furnace for generating swirling vortex in the center tangentially, which decides the flame propagation effectiveness and time to sustain flame for longer time and combustion efficiency. Optimization is performed for different design parameters like burner velocity and firing angle with objective function of enhancement of mixing efficiency in the furnace. From that the designer of optimization and simulation makes it possible to find the optimum design and operating parameters. The literature is reviewed to understand the base case as shown in Figure 1 is simulated using the burners angle& velocity as mentioned in Table 1 and the numerical results for the base parameters are compared with the experimental results.

"/> In thermal tangentially fired boiler, the flame stability mainly dependent on the central swirl strength which characterizes the mixing between the air and fuel. In this work, numerical investigation is performed on 600MW pulverized coal tangentially fired dry-bottom boiler and validated with experimental data. The main focus of the work is to study the effects of burner firing angle and mass flow rate on the flow characteristics inside the burner. The important feature of the model is a tangential fired geometry in furnace where four burners are kept at the corners of the furnace for generating swirling vortex in the center tangentially, which decides the flame propagation effectiveness and time to sustain flame for longer time and combustion efficiency. Optimization is performed for different design parameters like burner velocity and firing angle with objective function of enhancement of mixing efficiency in the furnace. From that the designer of optimization and simulation makes it possible to find the optimum design and operating parameters. The literature is reviewed to understand the base case as shown in Figure 1 is simulated using the burners angle& velocity as mentioned in Table 1 and the numerical results for the base parameters are compared with the experimental results.

"/> In thermal tangentially fired boiler, the flame stability mainly dependent on the central swirl strength which characterizes the mixing between the air and fuel. In this work, numerical investigation is performed on 600MW pulverized coal tangentially fired dry-bottom boiler and validated with experimental data. The main focus of the work is to study the effects of burner firing angle and mass flow rate on the flow characteristics inside the burner. The important feature of the model is a tangential fired geometry in furnace where four burners are kept at the corners of the furnace for generating swirling vortex in the center tangentially, which decides the flame propagation effectiveness and time to sustain flame for longer time and combustion efficiency. Optimization is performed for different design parameters like burner velocity and firing angle with objective function of enhancement of mixing efficiency in the furnace. From that the designer of optimization and simulation makes it possible to find the optimum design and operating parameters. The literature is reviewed to understand the base case as shown in Figure 1 is simulated using the burners angle& velocity as mentioned in Table 1 and the numerical results for the base parameters are compared with the experimental results.

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Call for Paper - Upcoming Issues

Design and Optimization of Flow Field of Tangentially Fired Boiler

International Journal of Mechanical Engineering
© 2014 by SSRG - IJME Journal
Volume 1 Issue 4
Year of Publication : 2014
Authors : Y.J. Wagh, V.H.Patil
10.14445/23488360/IJME-V1I4P101
pdf
How to Cite?

Y.J. Wagh, V.H.Patil, "Design and Optimization of Flow Field of Tangentially Fired Boiler," SSRG International Journal of Mechanical Engineering, vol. 1,  no. 4, pp. 1-7, 2014. Crossref, https://doi.org/10.14445/23488360/IJME-V1I4P101

Abstract:

In thermal tangentially fired boiler, the flame stability mainly dependent on the central swirl strength which characterizes the mixing between the air and fuel. In this work, numerical investigation is performed on 600MW pulverized coal tangentially fired dry-bottom boiler and validated with experimental data. The main focus of the work is to study the effects of burner firing angle and mass flow rate on the flow characteristics inside the burner. The important feature of the model is a tangential fired geometry in furnace where four burners are kept at the corners of the furnace for generating swirling vortex in the center tangentially, which decides the flame propagation effectiveness and time to sustain flame for longer time and combustion efficiency. Optimization is performed for different design parameters like burner velocity and firing angle with objective function of enhancement of mixing efficiency in the furnace. From that the designer of optimization and simulation makes it possible to find the optimum design and operating parameters. The literature is reviewed to understand the base case as shown in Figure 1 is simulated using the burners angle& velocity as mentioned in Table 1 and the numerical results for the base parameters are compared with the experimental results.

Keywords:

Burner, flame, mixing, tangentially fired boiler, vortex.

References:

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