New HAN-based mixtures for reaction control system and low toxic spacecraft propulsion subsystem: Thermal decomposition and possible thruster applications

Amrousse, Rachid; Katsumi, Toshiyuki; Itouyama, Noboru; Azuma, Nobuyuki; Kagawa, Hideshi; Hatai, Keigo; Ikeda, Hozumi; Hori, Keiichi

doi:10.1016/j.combustflame.2015.03.026

Cited by 58 publications

(28 citation statements)

References 35 publications

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“…The decomposition of HAN is occurred at a temperature which is higher than 74.3 °C, but the maximum temperature is 151.6 °C. As can be seen from the DTA curve (90HAN/10Ir), the obtained results consistent with previously described process of catalytic decomposition of HAN water solutions [1,16,17].…”

Section: Han + Hsupporting

confidence: 80%

“…But, the decomposition of HAN/AC-RF mixture with is occurred with exotherm of two peaks at 209 and 288 °C. This phenomenon has been noted in the previous studies [1,2,17] concerning the decomposition of HAN without any additives, where a two-stage mechanism for decomposition of the mixture is proposed. Thus, we guess that activated carbon AC-RF, does not change the decomposition mechanism of HAN.…”

Section: Han + Hmentioning

confidence: 81%

“…Therefore, by the end of the twentieth century, the research centers have an intention on searching of new less harmful and higher-energy materials. Aqueous compounds such as hydroxymammonium nitrate (NH 3 OHNO 3 ) were proposed as one of the most promising alternative for hydrazine [1][2].…”

Section: Introductionmentioning

confidence: 99%

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Combustion Characteristics of HAN-based Green Propellant Assisted with Nanoporous Active Carbons

Atamanov

Amrousse²,

Jandosov

et al. 2017

Eurasian Chem. Tech. J.

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Combustion of hydroxylammonium nitrate (95 wt.% HAN) -water solution in presence of high specific surface area activated carbons is investigated in a constant-pressure bomb within the pressure range of 1-6 MPa. The linear burning rate increased for the system of HAN admixed with activated carbons compared to those of the HAN alone. Moreover, the thermal decomposition of HAN (95 wt.%) -water solution spiked with activated carbons was assessed by DTA -TG method. In the presence of activated carbons, the ability to trigger the decomposition at a lower temperature (86 °C vs 185 °C) was observed. The volatile products formed in the course of thermal decomposition of HAN, spiked with activated carbons were characterized by electron ionization mass spectrometry analysis. Primary products of HAN decomposition: m/z = 33 (NH 2 OH) and m/z = 63 (HNO 3 ), which are further responsible for the formation of secondary products such as N 2 O, NO, HNO 2 , NO 2 , O 2 etc. Significant reduction of NOx emissions during thermal decomposition of HAN (95 wt.%) -water solution was observed (ca. 30%) in presence of activated carbons.

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Section: Han + Hsupporting

confidence: 80%

Section: Han + Hmentioning

confidence: 81%

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Combustion Characteristics of HAN-based Green Propellant Assisted with Nanoporous Active Carbons

Atamanov

Amrousse²,

Jandosov

et al. 2017

Eurasian Chem. Tech. J.

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show abstract

“…19 An indication that this is occurring in these experiments is the small increase in the m/z 46 signal below 11 eV (NO 2 , IE = 9.6 eV 23 ) at temperatures above 250°C (see Figure S2, Supporting Information). Using the composite method CBS-QB3, 26 reaction 9 is calculated here to have a free energy of reaction of ΔG rxn = 35.4 kcal/mol (148.1 kJ/mol), including zero point vibrational energy, at 298 K and 1 atm.…”

mentioning

confidence: 99%

Flow-Tube Investigations of Hypergolic Reactions of a Dicyanamide Ionic Liquid Via Tunable Vacuum Ultraviolet Aerosol Mass Spectrometry

et al. 2016

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Hydroxylammonium nitrate (HAN) is a promising candidate to replace highly toxic hydrazine in monopropellant thruster space applications. The reactivity of HAN aerosols on heated copper and iridium targets was investigated using tunable vacuum ultraviolet photoionization time-of-flight aerosol mass spectrometry. The reaction products were identified by their mass-to-charge ratios and their ionization energies. Products include NH 3 , H 2 O, NO, hydroxylamine (HA), HNO 3 , and a small amount of NO 2 at high temperature. No N 2 O was detected under these experimental conditions, despite the fact that N 2 O is one of the expected products according to the generally accepted thermal decomposition mechanism of HAN. Upon introduction of iridium catalyst, a significant enhancement of the NO/HA ratio was observed. This observation indicates that the formation of NO via decomposition of HA is an important pathway in the catalytic decomposition of HAN.

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“…In each case, the time span from the pulse discharge to the peak pressure was in the range of 1-2 ms. This rate of increase in the chamber pressure is much higher than the rates normally obtained when using a catalyst; it is about a second [10,11], demonstrating that employing a pulse plasma has the potential to allow the design of a fast response thruster. After the chamber pressure reached its peak value, the pressure decreased over the span of several tens of milliseconds because the electric discharge was not continued following the initial pulse discharge in this study.…”

Section: Single-pulse Discharge Testmentioning

confidence: 99%

Performance of a green propellant thruster with discharge plasma

et al. 2017

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New HAN-based mixtures for reaction control system and low toxic spacecraft propulsion subsystem: Thermal decomposition and possible thruster applications

Cited by 58 publications

References 35 publications

Combustion Characteristics of HAN-based Green Propellant Assisted with Nanoporous Active Carbons

Combustion Characteristics of HAN-based Green Propellant Assisted with Nanoporous Active Carbons

Flow-Tube Investigations of Hypergolic Reactions of a Dicyanamide Ionic Liquid Via Tunable Vacuum Ultraviolet Aerosol Mass Spectrometry

Performance of a green propellant thruster with discharge plasma

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