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Werling, Lukas and Bätz, Patrick (2022) Parameters Influencing the Characteristic Exhaust Velocity of a Nitrous Oxide/Ethene Green Propellant. Journal of Propulsion and Power. American Institute of Aeronautics and Astronautics (AIAA). doi: 10.2514/1.B38349. ISSN 0748-4658.
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Official URL: https://arc.aiaa.org/doi/10.2514/1.B38349
Abstract
Currently, several green propellants are under investigation to replace the toxic and carcinogenic monopropellant hydrazine (N2H4). Beside alternatives as ammonium dinitramide-based propellants, hydroxylammonium nitrate-based mixtures, or high concentrated hydrogen peroxide, mixtures of fuels with nitrous oxide (N2O) called HyNOx or NOFBX represent promising green propellants. Compared to classical N2H4, N2O/fuel mixtures offer a higher performance (Isp and c∗), no or low toxicity, and low propellant costs. To investigate the handling and performance of a propellant mixture consisting of N2O and ethene, hot gas combustion tests with an experimental combustor were conducted. This paper summarizes the results of 134 combustion tests conducted with the premixed propellant injected in gaseous state. Calculated and measured performances (c∗ and ηc∗) depending on mixture ratio, characteristic combustion chamber length L∗, and chamber pressure are shown and discussed. Furthermore, the residence timescales of the propellant mixture inside the combustion chamber are normalized by the chemical timescale of the combustion process. Thus, combustion efficiencies depending on dimensionless Damköhler numbers are derived.
| Item URL in elib: | https://elib.dlr.de/148424/ | |||||||||
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| Document Type: | Article | |||||||||
| Title: | Parameters Influencing the Characteristic Exhaust Velocity of a Nitrous Oxide/Ethene Green Propellant | |||||||||
| Authors: |
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| Date: | 2022 | |||||||||
| Journal or Publication Title: | Journal of Propulsion and Power | |||||||||
| Refereed publication: | Yes | |||||||||
| Open Access: | Yes | |||||||||
| Gold Open Access: | No | |||||||||
| In SCOPUS: | Yes | |||||||||
| In ISI Web of Science: | Yes | |||||||||
| DOI : | 10.2514/1.B38349 | |||||||||
| Publisher: | American Institute of Aeronautics and Astronautics (AIAA) | |||||||||
| ISSN: | 0748-4658 | |||||||||
| Status: | Published | |||||||||
| Keywords: | Monopropellants, Combustion Chambers, Rocket Propellant, Green Propellants, N2O, C2H4, c*, Efficiency Rocket engine | |||||||||
| HGF - Research field: | Aeronautics, Space and Transport | |||||||||
| HGF - Program: | Space | |||||||||
| HGF - Program Themes: | Space Transportation | |||||||||
| DLR - Research area: | Raumfahrt | |||||||||
| DLR - Program: | R RP - Space Transportation | |||||||||
| DLR - Research theme (Project): | R - Project Future Fuels - Advanced Rocket Propellants | |||||||||
| Location: | Lampoldshausen | |||||||||
| Institutes and Institutions: | Institute of Space Propulsion > Spacecraft and Orbital Propulsion | |||||||||
| Deposited By: | Werling, Lukas | |||||||||
| Deposited On: | 20 Jan 2022 07:35 | |||||||||
| Last Modified: | 31 Jan 2022 08:14 |
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