An optimized hybrid rocket motor for the SARA platform reentry system

Cás, Pedro Luiz Kaled Da; Vilanova, Cristiano Queiroz; Barcelos, Manuel Nascimento Dias; Veras, Carlos

doi:10.5028/jatm.2012.04032312

Cited by 8 publications

(1 citation statement)

References 13 publications

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“…Moreover, it allows multiple reignitions besides enhancing thrust-control insofar as the flow adjustment is also possible. This control also makes hybrid rocket motors applicable in space vehicles in which trajectory correction is also needed, such as in spacecraft reentry 3 . The HRM has already being envisaged for commercial ends viz.…”

Section: Introductionmentioning

confidence: 98%

Thermogravimetric Analysis of the Decomposition of a Paraffin Particle/HTPB Fuel Grain for Hybrid Rocket Motors

Cardoso

Nagamachi

Kawachi

et al. 2015

53rd AIAA Aerospace Sciences Meeting

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Paraffin has been identified as a promising alternative for use in propellant grains for hybrid rocket motors. Studies have been conducted using grain as fuel paraffin or liquid hidroxylated polybutadiene polymer (HTPB) due to the high thrust generated during firing. However, in consequences the low mechanical properties of pure paraffin, this study aims to evaluate the kinetics of degradation of a mixture composed of paraffin particles (PP) and HTPB compared with grain fuel pure paraffin and pure HTPB. For this we used a thermal analysis technique thermogravimetric in conjunction with the application of kinetic methods based on ASTM E1641 and Vyazovkin theory. Based on these results we can say the activation energy results are in agreement with the literature and the mixture PP / HTPB presents intermediate activation energy values as expected.

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Section: Introductionmentioning

confidence: 98%

Thermogravimetric Analysis of the Decomposition of a Paraffin Particle/HTPB Fuel Grain for Hybrid Rocket Motors

Cardoso

Nagamachi

Kawachi

et al. 2015

53rd AIAA Aerospace Sciences Meeting

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Finite element method and its application to cutting processes of stone–plastic composite

Wu,

Buck,

Zhang

et al. 2023

Int J Adv Manuf Technol

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Enhancing Antibacterial and Water-Repellent Properties for the Production of High-Performance Fabrics in Home Textiles

Omerogullari Basyigit,

Coskun

2024

Fibers Polym

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In this research, we aimed to enhance the antibacterial activity and water repellency functionalities of single-layer 100% cotton fabrics on both the face and back sides, utilizing conventional methods. Unlike conventional approaches that often rely on lamination or coating techniques to imbue fabric surfaces with distinct properties, our study pursued a cost-effective strategy using traditional textile finishing methods. By integrating double functionality into cotton fabric, we aimed to circumvent the need for additional equipment and high initial costs associated with other techniques. To achieve this, we improved the antibacterial activity of the fabrics through the incorporation of silver ions in the pad-dry process. Simultaneously, water repellency functionality was introduced through a printing application, where the printing paste, devoid of dyestuff, was combined with functional agents and applied using rotary printing to the fabric’s backside. Following these finishing applications, we conducted comprehensive tests encompassing washing durability, antibacterial efficacy, water repellency, mechanical strength, and fastness properties of the multifunctional fabrics. Characterization tests, including Fourier transform infrared attenuated total reflectance (FTIR-ATR) and scanning electron microscope analyses (SEM-EDX), were performed. The outcome of our study showcased the successful enhancement of double-functional cotton fabric, featuring water repellency and antibacterial efficiency on distinct sides. Furthermore, the results indicated that these functionalities endured up to 20 washing cycles, with fastness and performance tests consistently achieving peak levels.

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An optimized hybrid rocket motor for the SARA platform reentry system

Cited by 8 publications

References 13 publications

Thermogravimetric Analysis of the Decomposition of a Paraffin Particle/HTPB Fuel Grain for Hybrid Rocket Motors

Thermogravimetric Analysis of the Decomposition of a Paraffin Particle/HTPB Fuel Grain for Hybrid Rocket Motors

Finite element method and its application to cutting processes of stone–plastic composite

Enhancing Antibacterial and Water-Repellent Properties for the Production of High-Performance Fabrics in Home Textiles

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