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Investigation of regression rate end-burning typed hybrid rocket motor

Sabri, Muhammad Ezamuddin Ezzad and Azami, Muhammad Hanafi and Abdullah, Nur Azam and Nordin, Norhuda Hidayah (2023) Investigation of regression rate end-burning typed hybrid rocket motor. Journal of Aeronautics, Astronautics and Aviation, 55 (3S). pp. 485-494. ISSN 1990-7710

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Hybrid rocket motor has a critical weakness that impacts performance: low regression rate. Due to this, extensive investigation has been done on end-burning hybrid rocket motors to enhance the regression rate. Experimental works were conducted on the end-burning hybrid rocket motor. The present investigation is focused on single port hybrid rocket motor, paraffin wax, and gas oxygen as the fuel and oxidiser, respectively. The results show that combustion occurs only at the fuel end in end-burning mode, which ensures that the oxidiser-to-fuel ratio does not fluctuate, enhancing the motor's performance. Hybrid rocket motor performance has been evaluated by calculating the regression rate, thrust and specific impulses. From this study, an end-burning hybrid rocket motor has a 33% less regression rate but around a 50% increase in thrust and specific impulse compared to a conventional hybrid rocket motor. The low regression is due to the small initial combustion area. Mass flux is the more prominent factor in increasing the regression rate and thrust of the end-burning hybrid rocket motor compared to the fuel length. Further improvement to the design of the hybrid rocket motor can maximise the potential of the end-burning mode.

Item Type: Article (Journal)
Uncontrolled Keywords: Hybrid rocket, Regression rate, End-burning, Paraffin
Subjects: T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL780 Rockets
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering
Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User: Dr Muhammad Hanafi Azami
Date Deposited: 13 Sep 2023 16:50
Last Modified: 13 Sep 2023 16:51
URI: http://irep.iium.edu.my/id/eprint/106537

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