10 May 2006 Instrumentation of UALR labscale hybrid rocket motor
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Abstract
The Central Arkansas Combustion Group has used a NASA EPSCoR grant to improve the instrumentation and control of its labscale hybrid rocket facility. The research group investigates fundamental aspects of combustion in hybrid rocket motors. This paper describes the new instrumentation, provides examples of measurements taken, and describes novel instrumentation which is in the process of development. A six degree-of-freedom thrust system measures the total work done during a burn to compare the efficiency of fuels and fuel additives. The new system measures the forces and moments in three spatial dimensions. An accurate measure of thrust oscillations will lead to better understanding of the cause and eventual minimization of the oscillations. Plume spectrometers are employed to determine and measure the reaction intermediates and products of combustion at the exhaust. The new control system features an oxygen mass flow controller, which allows the accurate measurement of the oxidant introduced into the motor.
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Andrew B. Wright, Warfield Teague, Ann M. Wright, Edmond W. Wilson, "Instrumentation of UALR labscale hybrid rocket motor", Proc. SPIE 6222, Sensors for Propulsion Measurement Applications, 622202 (10 May 2006); doi: 10.1117/12.664620; https://doi.org/10.1117/12.664620
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