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Abstract
Heat transfer from igniter to the propellant surface is one of the key factors which govern the ignition phenomenon in a solid rocket motor. The igniter ejects the particulate matter along with the hot gases during ignition process. These particles provide local ignition zones on the propellant surface along with the other modes of heat transfer provided. In order to identify and locate these hot spots experimentally, a lab scale rocket motor is used in which the igniter products are made to impinge on a silicon rubber sheet. A boron potassiumnitrate based pyrotechnic igniter is used in this study. The thermal imaging of the rubber sheet shows higher temperature near impingement point and along the length of the motor.
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References
- Kumar, M. and Kuo, K. K., "Flame Spreading and Overall Ignition Transient", Progress in Astronautics and Aeronautics, Fundamentals of Solid-Propellant Combustion, 1984, pp.305-360.
- Robertson, W., "Igniter Material Considerations and Applications", 8th Joint Propulsion Specialist Conference, 1972, p.1195.
- Smith, I. and Siddiqui, K., "The Measurement of Igniter Heat Flux in Solid Propellant Rocket Motors", 13th Propulsion Conference, 1977, p.901.
- Allan, D.S., Bastress, E.K. and Smith, K.A., "Heat-transfer Processes During Ignition of Ignition of Solid Propellant Rockets", Journal of Spacecraft and Rockets, Vol.4, No.1, 1967, pp.95-100.
- Carlson, L.W. and Seader, J.D., "Heat-transfer Characteristics of Hot-gas Ignition", AIAA Journal, Vol.5, No.7, 1967, pp.1272-1279.
- Galfetti, L., Colombo, G., Menalli, A., Benzoni, G. and Galli, C., "Experimental Study of Solid-propellant Ignition Transient and Flame Spreading Under Convective Flows", Combustion, Explosion and Shock Waves, Vol.36, No.1, 2000, pp 108-118.
- Peretz, A., Kuo, K.K., Caveny, L.H. and Summer-field, M., "Starting Transient of Solid-Propellant ocket Motors with High Internal Gas Velocities", AIAA Journal, Vol.11, No.12, 1973, pp.1719-1727.
- Jenkins, R., Foster, d.A., Jr, W. and Wirth, L., "Unsteady Jet Plume Interaction in Multi-port SRM Ignition Systems", 33rd Aerospace Sciences Meeting and Exhibit, 1995, p.874.
- Rozumov, E., Adam, C. P., Manning, T. G., Laquidara, J. M., Chung, K., Park, D. and Panchal, V., "Nitrocellulose and BKNO3 Based Igniters for Gun Systems", MRS Online Proceedings Library Archive, 2011, p.1405.
References
Kumar, M. and Kuo, K. K., "Flame Spreading and Overall Ignition Transient", Progress in Astronautics and Aeronautics, Fundamentals of Solid-Propellant Combustion, 1984, pp.305-360.
Robertson, W., "Igniter Material Considerations and Applications", 8th Joint Propulsion Specialist Conference, 1972, p.1195.
Smith, I. and Siddiqui, K., "The Measurement of Igniter Heat Flux in Solid Propellant Rocket Motors", 13th Propulsion Conference, 1977, p.901.
Allan, D.S., Bastress, E.K. and Smith, K.A., "Heat-transfer Processes During Ignition of Ignition of Solid Propellant Rockets", Journal of Spacecraft and Rockets, Vol.4, No.1, 1967, pp.95-100.
Carlson, L.W. and Seader, J.D., "Heat-transfer Characteristics of Hot-gas Ignition", AIAA Journal, Vol.5, No.7, 1967, pp.1272-1279.
Galfetti, L., Colombo, G., Menalli, A., Benzoni, G. and Galli, C., "Experimental Study of Solid-propellant Ignition Transient and Flame Spreading Under Convective Flows", Combustion, Explosion and Shock Waves, Vol.36, No.1, 2000, pp 108-118.
Peretz, A., Kuo, K.K., Caveny, L.H. and Summer-field, M., "Starting Transient of Solid-Propellant ocket Motors with High Internal Gas Velocities", AIAA Journal, Vol.11, No.12, 1973, pp.1719-1727.
Jenkins, R., Foster, d.A., Jr, W. and Wirth, L., "Unsteady Jet Plume Interaction in Multi-port SRM Ignition Systems", 33rd Aerospace Sciences Meeting and Exhibit, 1995, p.874.
Rozumov, E., Adam, C. P., Manning, T. G., Laquidara, J. M., Chung, K., Park, D. and Panchal, V., "Nitrocellulose and BKNO3 Based Igniters for Gun Systems", MRS Online Proceedings Library Archive, 2011, p.1405.