Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 64 for “"Solid Fuel"”.
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Investigation of Fuel Geometry and Solid Fuel Combustion for Solid Fuel Ramjets
Solid fuel ramjets (SFRJs) are a simple means of sustaining supersonic flight. The utilization of solid fuels eliminates the need for moving parts or liquid delivery systems, and the solid fuels are typically inert, resulting in minimal handling requirements compared to solid propellants. …
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Solid fuel ramjet infrared signature
… the effects of equivalence ratio (Ø) and fuel composition on the infrared signature of solid fueled ramjets (SFRJ). Solid fuels investigated were Plexiglas, HTPB, and HTPB with aluminum, silicon, boron carbide, and/or magnesium. They were tested at chamber pressures of 80-170 psia and with …
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Flame spread through a solid fuel
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1963.
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A study of a cylindrical, pulsed, solid fuel microthruster.
Thesis (E.A.A.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1973.
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A performance study of a pulsed solid fuel microthruster.
Massachusetts Institute of Technology. Dept. of Aeronautics and Astronautics. Thesis. 1969. M.S.
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Simulation of Flow in a Solid Fuel Ramjet Cavity
Cold flow inside a Solid Fueled Ramjet (SFRJ) is simulated using large eddy simulations (LES). A finite element method using a Discontinuous Galerkin bases has been implemented in the open-sourced multi-physics software SU2. Novel LES formulations of the fuel-gas boundary conditions and the heat …
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Field emission measurements of solid fuel stoves in Yunnan, China
… of residential stoves in Yunnan Province, China. Fuel mixtures included coal, woody biomass, and agricultural waste. Compared to previously published emission measurements of similar stoves, these measurements have higher CO and PM2.5 emission factors. Real-time data show two distinct burn phases: …
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Solid Fuel Blend Pyrolysis-Combustion Behavior and Fluidized Bed Hydrodynamics
… of coal and biomass mixtures is an alternative fuel route for the existing coal based reactors. The main challenges associated with co-firing involves proper understanding of the co-firing behavior of blended coal-biomass fuels, and proper understanding of advanced gasification systems used for …
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Use of a textile wastewater sludge as a supplemental solid fuel
… of using the by-product as a supplemental fuel in the facility's coal boilers was investigated. Proximate analyses showed that the by-product, with a relatively high heating value and low sulfur content, was fairly well suited for use a supplemental fuel. A brief test-burn of the by-product …
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Solid fuel combustion and its applications to the incineration of solid refuse,
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1973.
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Simulation of solid fuel combustion in the cyclone combustion chamber using fluent-14.0
… of the ash from the gaseous products of the solid fuel. The objectives of this study are to demonstrated the flow characteristic, identify velocity and temperature distributions inside the combustor and to attain the complete combustion process with stoichiometry amount of air is used. The …
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Failure detection, isolation and mitigation for a spacecraft solid fuel reaction control system
… Vehicle is currently proposed as a two-stage solid fuel vehicle, which is ideal for surviving the long interplanetary journey and environmental extremes of the Martian surface. This thesis details real time failure detection, isolation and mitigation algorithms for use with a six degree of …
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Multiphase models of slag layer built-up in solid fuel gasification and combustion
… captured particles and the possibility of slag resolidification. The model predicts the local thickness of molten and solid slag layers as well as the average slag velocity. Moreover, it is capable of predicting heat losses and the inner as well as outer wall temperatures, taking into account the …
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Pyrolysis and Flamelet Model for Polymethyl Methacrylate in Solid Fuel Sc(ramjet) Combustors
… at high Mach numbers. The introduction of solid fuels in these scramjet systems allows for shaping of the solid fuel cavity by additive manufacturing and introduces the possibility of enhancing combustion rates and stability. The present investigation aims to develop a coupled, high-order …
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Experimental and Theoretical Study of Hypergolic Solid Fuel Ignition and Combustion with Hydrogen Peroxide
… ignition and combustion behaviors of hypergolic solid fuels (HSFs) using rocket-grade hydrogen peroxide (RGHP) as the oxidizer. The HSFs used in this study were composed of low-density polyethylene (LDPE) as the fuel binder, along with two types of hypergolic additives: sodium borohydride (NaBH4) …
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Multi-Scale Studies to Develop a Holistic Understanding of Solid Fuel Combustion at Residential Scale
<p>Nearly 3 billion people rely on solid fuels for their cooking and heating needs, classifying them as “energy poor”. This poverty can be attributed to several factors, including a lack of resources (fuel), inefficient infrastructure (production and distribution), limited purchasing power …
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Dynamic Behaviour of Composite Structures Containing Viscoelastic Materials, with Applications to Solid Fuel Rocket Motors
… study the effect of forced harmonic vibration on solid fuel rocket motors. A rocket motor consists of the motor case (which contains the propellant) and the blast tube attached to the aft end. The propellant is a viscoelastic material, no reliable data on the complex modulii of the propellants …
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Feasibility and economics of existing PWR transition to a higher power core using annular fuel
The internally and externally cooled annular fuel is a new type of fuel for PWRs that enables an increase in core power density by 50% within the same or better safety margins as the traditional solid fuel. Each annular fuel assembly of the same side dimensions as the solid fuel has 160 annular …
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The demand, selection, and health impacts of household energy in Pakistan
… almost three billion people still depend upon solid fuels such as firewood, biomass, crop residues, animal dung, and coal, which are the major contributors to IAP. This thesis investigates the causal relationship between solid fuel consumption and both child mortality and life expectancy, the …
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Design of annular fuel for high power density BWRs
… in BWR plants by switching from the current solid fuel to annular fuel cooled both on its inside and outside surfaces. The GE 8x8 bundle dimensions and fuel to moderator ratio are preserved as a reference to enable applications in existing reactors. A methodology is developed and VIPRE code …
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