Restitution methodology for space and time dependent solid-fuel port diameter evolution in hybrid rocket engines

Durand, Jean-Étienne; Lestrade, Jean-Yves; Anthoine, J.

doi:10.1016/j.ast.2021.106497

Cited by 15 publications

(9 citation statements)

References 21 publications

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“…The method of quadratic module of the time derivative of chamber pressure is adopted to obtain the burning duration. According to Durand et al [14], the burning time is calculated by measuring the difference value between the two peaks of the quadratic module of the time derivative of chamber pressure. The curve of chamber pressure with time and the quadratic module of the time derivative of chamber pressure are presented in Figure 7.…”

Section: Firing Test Resultsmentioning

confidence: 99%

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Experiment research on instantaneous characteristics of variable-thrust hybrid rocket motor by reconstruction techniques

Wei

Cai

Tan

2023

J. Phys.: Conf. Ser.

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The firing test of variable-thrust Hybrid Rocket Motor (HRM), operated with Hydrogen Peroxide (HP) and Polyethylene (PE), based on closed-loop thrust control, has been carried out in this paper. The experiment research on instantaneous characteristics of HRM is conducted based on reconstruction techniques. A post-processing software has been developed to reconstruct the instantaneous performance parameters during the burning stage of HRM. Meanwhile, the formula of regression rate is fitted by reconstruction results through a single firing test, which is a significant advantage compared with traditional method. The averages of instantaneous parameters calculated by reconstruction techniques accord well with experimental data summarized by traditional consumption weight loss method, and the accuracy of reconstruction calculation is better than 1%. This paper is designed to achieve the reconstruction for instantaneous parameters and research the instantaneous characteristics during the variable-thrust firing test of HRM. The reconstruction techniques have the better accuracy, and also provide a critical method for the research on instantaneous characteristics of hybrid rocket motor.

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Section: Firing Test Resultsmentioning

confidence: 99%

“…So, the effective characteristic velocity is not needed. Durand et al [14] compared the instantaneous fuel regression rate or O/F obtained by measuring the pressure drop across the fuel based on the reconstruction technique.…”

Section: Introductionmentioning

confidence: 99%

Experiment research on instantaneous characteristics of variable-thrust hybrid rocket motor by reconstruction techniques

Wei

Cai

Tan

2023

J. Phys.: Conf. Ser.

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“…These distinguished advantages make it attractive for both military and commercial applications [1,2]. As for performances, the specific impulse is higher than the values of the solid rocket motor and comparable to the liquid rocket motor [3]. However, the hybrid rocket motor suffers from a low regression rate of solid grain, which limits the widespread applications of the hybrid rocket motor.…”

Section: Introductionmentioning

confidence: 99%

“…Chiaverini and Kuo [16] indicated that the measurement of the fuel regression rate was a major challenge for hybrid rocket propulsion researchers because the instantaneous fuel regression rate is a function of the motor operating conditions, firing duration, port diameter, whether or not nozzle erosion occurs, etc. Various traditional methods were used by researchers to determine the regression rate of hybrid rocket fuels, such as through the ultrasonic technique [3,[17][18][19], X-ray radiographic technique [20][21][22], and endpoint averaging method. The ultrasonic technique is the least costly but can only measure the fuel regression at a specific location, as well as in fuel grains with a simple geometry [23].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the key difference from the other studies of this article lies in our consideration of using the specific impulse efficiency instead of the c* efficiency. Durand et al [3] compared the instantaneous fuel regression rates or O/F, which were obtained by measuring the pressure drop across the fuel by the reconstruction technique. Additionally, the rebuilt profiles of the instantaneous port diameter showed the ability of the methodology to restore the space and time distribution of the fuel port diameter.…”

Section: Introductionmentioning

confidence: 99%

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Experimental Research on Reconstruction Techniques for Instantaneous Regression Rate of Hybrid Rocket Motor with Single-Port Wagon Wheel Fuel Grain

et al. 2023

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This study investigated reconstruction techniques for building the instantaneous fuel regression rate of the hybrid rocket motor (HRM). Specifically, an experiment in a laboratory 500 N-class hybrid rocket motor with single-port wagon wheel fuel grain, operated with hydrogen peroxide (HP) and hydroxyl-terminated polybutadiene (HTPB) based fuel (including Al), was carried out. A piece of post-processing software was developed to reconstruct the instantaneous regression rate and other performance parameters of the HRM during the firing test. The results produced by the reconstruction techniques are in good agreement with experimental data obtained by traditional methods, with a maximum error of less than 5.75%. Moreover, compared with the traditional endpoint method, the reconstruction method had a significant advantage, which could ascertain the sensitivity of the regression rate to changes in the oxidizer mass flux and fit the formula of regression rate in a single firing test. Additionally, digital image processing techniques were employed to determine the axial distribution of the fuel regression rate after the test using computed tomography (CT) scanning. This served to verify the accuracy of the instantaneous reconstruction calculation. The error in the average regression rate between CT scanning and the reconstruction calculation was 1.91%, proving that the CT scanning and pixel statistic method of the calculating regression rate was practical for characterizing the axial distribution of the average regression rate during the firing test. In summary, the main objective of this study was to reconstruct the transient parameters of hybrid rocket motor with single-port wagon wheel fuel grain using reconstruction techniques, and to fit the formula of the regression rate through a single-firing test. Furthermore, this paper proposes a modified reconstruction method that is essential for investigating fuel regression rate during the firing test of HRMs.

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Dynamic characteristics study of regression rate in variable thrust hybrid rocket motor

et al. 2022

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Restitution methodology for space and time dependent solid-fuel port diameter evolution in hybrid rocket engines

Cited by 15 publications

References 21 publications

Experiment research on instantaneous characteristics of variable-thrust hybrid rocket motor by reconstruction techniques

Experiment research on instantaneous characteristics of variable-thrust hybrid rocket motor by reconstruction techniques

Experimental Research on Reconstruction Techniques for Instantaneous Regression Rate of Hybrid Rocket Motor with Single-Port Wagon Wheel Fuel Grain

Dynamic characteristics study of regression rate in variable thrust hybrid rocket motor

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