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Chemical Composition of Igniter for Ignition System in Solid Rocket Motor |
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| รหัสดีโอไอ | |
| Creator | Z. Salleh, A. H. A. Hamid, W. M. W. Mohamed, A. Tamimi, M. J. Sujana, K. A. Ahmad |
| Title | Chemical Composition of Igniter for Ignition System in Solid Rocket Motor |
| Contributor | - |
| Publisher | TuEngr Group |
| Publication Year | 2564 |
| Journal Title | International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies |
| Journal Vol. | 12 |
| Journal No. | 9 |
| Page no. | 12A9P: 1-11 |
| Keyword | Black powder, Burning temperature, Solid propellant, Igniter pressure, Spitfire igniter, Thermite, Solid rocket motor, Rocket propulsion, Molar mass, Spitfire composition, Igniter weight, Critical pressure, Propellant grain, Sulphur content. |
| URL Website | http://TuEngr.com/Vol12_9.html |
| Website title | ITJEMAST V12(9) 2021 @ TuEngr.com |
| ISSN | 2228-9860 |
| Abstract | The ability of the black powder to ignite the propellant grain of the rocket motor is not powerful enough to provide the combustion stability of the propellant grain that delays the ignition lag interval during the transient phase. This project studies the heat combustion of spitfire powder, develops and improves this chemical composition for solid rocket motor, and analyses the spitfire powder performance to pressurize the rocket chamber. The selection of the percentage composition is identified through Graphical User Interface Propellant Evaluation Program (GUIPEP) Program. Results showed the chemical composition of spitfire powder with the higher percentage of thermite (30%) obtained the highest burning temperature (2255.2?C). A bomb calorimeter was used to obtain the value of enthalpy gain which recorded the highest value (7.92 kJ/g) at the highest percentage of thermite. The mixture of ??????3/Charcoal with 15% of thermite gave a higher value of burning temperature (1551.9?C) than the mixture of ??????3/Charcoal with 15% of Sulphur (1486.4?C). The highest burning temperature of chemical composition spitfire igniter (55% ??????3, 15% C, 20% Al, 10% ????2??3) was used to calculate the critical pressure (591.6 ??????). The appropriate igniter weight (20.6 grams) obtained from the selected volume of the igniter, ???? (9.0 ????3) was able to achieve the optimum igniter pressure (607.31 ??????) higher than the critical pressure. Thus, the use of thermite in the spitfire igniter will give a higher burning temperature compared to black powder that uses Sulphur. The appropriate igniter weight will be able to achieve optimum igniter pressure higher than critical pressure. |
