3-KW concentric tubular resistojet performance.

Halbach, C. R.; Page, R. J.; Short, Robert

doi:10.2514/3.28723

Cited by 13 publications

(2 citation statements)

References 2 publications

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“…A hydrogen-propelled resistojet is one of the competitive candidates. The specific impulse of the hydrogen-propelled resistojet is over 800 s at a chamber temperature of 2000 K [2]. The thrust-to-power ratio of the resistojet is inherently higher than that of ion/Hall thrusters, resulting in a shorter transfer time at a fixed power input.…”

Section: Introductionmentioning

confidence: 99%

Thermal Design and Experimental Verification of the 3D-printed Registojet

Nakata

Kinefuchi

2018

2018 Joint Propulsion Conference

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A 3D-printed resistojet, wherein the heater and flow path were united, was produced. The heater consists of multi-layer shells and is difficult to break down. In this paper, the thermal design and the results of the thrust measurement are reported. The measured electrical resistance matched with the predicted one. Both the heater and the thrust reached 70 percent efficiency when paired with a nitrogen propellant at a mass flow rate of 0.2 g/s.

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Section: Introductionmentioning

confidence: 99%

Thermal Design and Experimental Verification of the 3D-printed Registojet

Nakata

Kinefuchi

2018

2018 Joint Propulsion Conference

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“…VAPORIZING LIQUID MICROTHRUSTER (VLM): They have been in development since the 1960s [152][153][154][155], and the design comprises an inlet channel for propellant feed, a chamber where a heating element vaporizes the propellant, and a convergent-divergent nozzle to propel the gases to supersonic speeds, as observed in Figure 24a). Several designs demonstrate significant potential, achieving a specific impulse (I sp ) exceeding 100 s [156-158]; 2.…”

Section: Electrothermal Mems Electrical Thrustersmentioning

confidence: 99%

A Review on Micro-Combustion Flame Dynamics and Micro-Propulsion Systems

Dias,

Resende,

Afonso

2024

Energies

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This work presents a state-of-the-art review of micro-combustion flame dynamics and micro propulsion systems. In the initial section, we focus in on the different challenges of micro-combustion, investigating the typical length and time scales involved in micro-combustion and some critical phenomena such as flammability limits and the quenching diameter.We present an extensive collection of studies on the principal types of micro-flame dynamics, including flashback, blow-off, steady versus non-steady flames, mild combustion, stable flames, flames with repetitive extinction, and ignition and pulsatory flame burst. In the final part of this review, we focus on micropropulsion systems, their performance metrics, conventional manufacturing methods, and the advancements in Micro-Electro-Mechanical Systems manufacturing.

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Manufacturing of a high-temperature resistojet heat exchanger by selective laser melting

2017

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The paper presents the design, manufacturing and postproduction analysis of a novel high-temperature spacecraft resistojet heat exchanger manufactured through selective laser melting to validate the manufacturing approach. The work includes the analysis of critical features of a heat exchanger with integrated converging-diverging nozzle as a single piece element. The metrology of the component is investigated using optical analysis and profilometry to verify the integrity of components. A novel process of high-resolution micro-Computed Tomography (CT) is applied as a tool for volumetric non-destructive inspection and conformity since the complex geometry of the thruster does not allow internal examination. The CT volume data is utilised to determine a surface mesh on which a novel perform coordinate measurement technique is applied for nominal/actual comparison and wall thickness analysis. A thin-wall concentric tubular heat exchanger design is determined to meet dimensional accuracy requirements through nominal/actual comparison analysis. The work indicates the production of fine structures with feature sizes below 200 μm in 316L stainless via selective laser melting is feasible and opens up new possibilities for the future developments in multiple industries.

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3-KW concentric tubular resistojet performance.

Cited by 13 publications

References 2 publications

Thermal Design and Experimental Verification of the 3D-printed Registojet

Thermal Design and Experimental Verification of the 3D-printed Registojet

A Review on Micro-Combustion Flame Dynamics and Micro-Propulsion Systems

Manufacturing of a high-temperature resistojet heat exchanger by selective laser melting

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