Testing of Paraffin-based Hybrid Rocket Fuel using Gaseous Oxygen Oxidiser

Defence Science Journal

Yash Pal¹  S. Murugesan¹  J. Baskar¹ 

[1] Hindustan University, Chennai

关键词: Hybrid rocket;    regression rate;    injection pressure;    helical grain;    star grain;   

DOI  :  

学科分类：社会科学、人文和艺术（综合）

来源: Defence Scientific Information & Documentation Centre

【 摘 要 】

A series of paraffin-based hybrid rocket fuel has been studiedexperimentally in a laboratory-scale motor. To enhance the regressionrate of paraffin solid fuel, three types of grain configurations:Cylindrical, star, and helical grain configurations of paraffin wax havebeen developed and tested with gaseous oxygen. The helical fuel grainpresented best performance among all the test ports. About 40.2 per centand 20.6 per cent regression rates are increased by burning paraffinfuel with helical and star grain configuration respectively, as comparedto cylindrical grain configuration at Gox=0.0191 g/mm2s. The regressionrates were significantly influenced by the oxygen injection pressurevaried between 344.7 kPa and 620.5 kPa. Furthermore, the experimentallyobtained exponents of oxidizer mass flux for all three grainconfigurations have been found to be significantly different from thoseof the classical hybrid system. Finally, thrust-time traces for allthree grain configurations were also studied. The result shown nosignificant increase or decrease in the amplitude of the thrustoscillations. Defence Science Journal, 2012, 62(5), pp.277-283 , DOI:http://dx.doi.org/10.14429/dsj.62.2346

【 授权许可】

Unknown