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http://dx.doi.org/10.6108/KSPE.2019.23.5.019

A Study on the Combustion Characteristic of Paraffin Fuel Based Hybrid Rocket with the Post Chamber L/D Ratio  

Ko, Suhan (Graduate School of Aerospace and Mechanical Engineering, Korea Aerospace University)
Lee, Donghee (Graduate School of Aerospace and Mechanical Engineering, Korea Aerospace University)
Kwon, Sejin (Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology)
Moon, Heejang (School of Aerospace and Mechanical Engineering, Korea Aerospace University)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.23, no.5, 2019 , pp. 19-26 More about this Journal
Abstract
Paraffin fuels usually have low combustion efficiency due to discharged unburnt droplets from the nozzle. Therefore, optimization of the post-chamber is becoming an important factor for performance. In this study, combustion experiments were conducted by changing either the length or diameter of the post-chamber to reveal the combustion behavior of paraffin fuel for hybrid rocket. As a result, the combustion efficiency improved due to the increase of the residence time as the post-chamber length increased. On the other hand, it is found that the influence of the diameter change was not significant compared with the case of variable post-chamber length.
Keywords
Hybrid Rocket; Paraffin Fuel; Post-chamber; Shape; Residence Time;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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