Additive Manufacturing and Testing of High Metal Content High Performance Ramjet Grains
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Authors
Gunduz, Ibrahim E.
Dausen, David F.
Smith, Walter
Subjects
Metal Fuels
hypersonic propulsion
solid fuel ramjet
additive manufacturing
combusition
hypersonic propulsion
solid fuel ramjet
additive manufacturing
combusition
Advisors
Date of Issue
2022
Date
2022
Publisher
Monterey, California: Naval Postgraduate School
Language
Abstract
Fuels with high efficiency and energy densities are needed to maximize the range and speed of future air-breathing systems such as solid fuel ramjets (SFRJ). The performance of the fuel mixtures that include large amount of metal additives suffer due to the poor combustion efficiency of the metal powders as they often do not burn completely during the short residence time in the combustor. Recent research has improved the reactivity of these fuels, but introducing them into a binder at high loading densities is a challenge due to the poor rheology. In order to develop and maximize the energy density and performance of SFJR fuel grains, advancements in additive manufacturing (AM) systems will be leveraged. This study will utilize vibration-assisted printing (VAP) and liquid metal printing (LMP) with the Xerox ElemX system to print fuel grains with metal powders and aluminum alloys, and use spray dried nanocomposite mesoparticles as additives. The research will test the physical limits of these approaches and determine optimal printing parameters for producing high quality printed fuels. The fuels will be evaluated mechanically and optimized using fly out calculations and they will be characterized with small scale combustion studies.
Type
Poster
Description
NPS NRP Project Poster
Series/Report No
Department
Mechanical and Aerospace Engineering (MAE)
Organization
Naval Research Program (NRP)
Identifiers
NPS Report Number
Sponsors
Naval Air Warfare Center Weapons Division (NAWCWD)
ASN(RDA) - Research, Development, and Acquisition
ASN(RDA) - Research, Development, and Acquisition
Funder
This research is supported by funding from the Naval Postgraduate School, Naval Research Program (PE 0605853N/2098). https://nps.edu/nrp
Chief of Naval Operations (CNO)
Chief of Naval Operations (CNO)
Format
Citation
Distribution Statement
Approved for public release. Distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.