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 325 for “"Combustor"”.
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Effect of variability on combustor performance
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2003.
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Development of a liquid-fueled micro-combustor
… and experimental characterization of a microcombustor that catalytically burns JP8 fuel. Due to high energy densities stored in hydrocarbon fuels, microscale heat engines based on them are estimated to have specific energies about one order of magnitude higher than those of current battery …
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Physics-based, reduced-order combustor flow modeling
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2002.
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Investigation of air control on chunkwood combustor
… and high emissions. A prototype chunkwood combustor was installed and tested. The basis for controlling heat output, was the modulation of air supplied to the primary and secondary combustors. Exhaust gas CO and CO₂ concentrations, combustor efficiency, and useful heat output were measured. …
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Development of an Atmospheric Fluidized Bed Combustor (AFBC)
The relatively recent interest in the U.S. in the development of atmospheric fluidized bed combustion (AFBC) has been preceded by two main factors. First of these is the ever present problem of acid rain and growing public support for cleaner burning fossil fuels. Second is the increasing demand on …
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Multi-fidelity strategies for lean burn combustor design
In combustor design and development, the use of unsteady computational fluid dynamics (CFD) simulations of transient combustor aero-thermo-dynamics to provide an insight into the complex reacting flow-field is expensive in terms of computational time. A large number of such high-fidelity reactive …
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Transient heat transfer properties in a pulse detonation combustor
… transfer along the axis of a pulse detonation combustor has been characterized for various frequencies and fill fractions at 2.5 atmospheres of pressure for chamber refresh conditions. In a pulse detonation combustor, a supersonic detonation wave is the method for transforming chemical energy …
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Development of a low-firepower continuous feed biomass combustor
… on larger (2 kW) fecal gasifiers. This scale of combustor was designed to incinerate the solid waste of approximately 28 users per hour. The large amount of users required to operate meant that either fuel would need to be stored before usage or the combustor would be subject to frequent startups …
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Process control of a laboratory combustor using neural networks
… for selected species from a laboratory two stage combustor. These virtual controllers functioned through a Visual Basic platform. A proportional neural network controller (PNNC) was developed for a monotonic control problem - the variation of outlet oxygen level with overall equivalence ratio …
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The shallow atmospheric coal fired fluidized-bed combustor furnace
[Not copying properly] The fluidized bed combustor furnace is considered as being made up of two zones, the fluidized bed itself and an upper free-board zone for the disengagement of ejected particles and in which further combustion may take. place simultaneously with the radiative transfer of heat …
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Transfer function of heavy duty gas turbine combustor components.
Thesis: M.S., Massachusetts Institute of Technology, Department of Mechanical Engineering, 1978
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Polycyclic aromatic hydrocarbon production in a jet stirred combustor
Thesis (Sc.D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1983.
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Parametric Investigation of the Combustor-Turbine Interface Leakage Geometry
… leakage flow emerging from the slot between the combustor and turbine endwalls can be utilized for cooling purposes if properly designed. This study examines a three-dimensional slot geometry, scalloped to manipulated leakage flow distribution. Statistical techniques are used to decouple the …
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A Thermoacoustic Characterization of a Rijke-type Tube Combustor
… to thermoacoustics, a simple Rijke-type tube combustor was built and studied. Extensive experimental results, as well as theoretical analyses related to the Rijke tube are presented in this thesis. The results, attributable to both the analyses and the experiments, help explain all the …
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The characterization of the flowfield of a dump combustor
… flowfield, a water-cooled, stainless steel dump combustor model was developed. A two-component Laser Doppler Anemometer (LOA) was used to measure the mean and turbulent velocities in the axial and tangential directions and provide a comparison between combusting and isothermal flows. However, …
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Characterization of liquid aviation fuel combustor for condensation trail research
… of a laboratory-scale liquid aviation fuel combustor to allow for the production of soot that mimics aviation-derived soot from various alternative fuels. It was found that laboratory-scale combustion can be stabilized using varying fuel and air injection flow rates and temperatures …
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Comparison of a fluidized bed combustor and its scale model
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1980.
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A low-frequency instability mechanism in a coaxial dump combustor
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1982.
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Numerical Modeling of a Ducted Rocket Combustor With Experimental Validation
… and is found in practice in pulverized coal combustors and ducted rocket ramjets. As the ducted rocket engine cycle is only now finding widespread use, it has received little research attention and was selected as a representative problem for this research. Prior to this work, a method was …
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