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 713 for “"Exhaust"”.
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Analysis of Automobile Exhaust Particulates
Made available in DSpace on 2014-12-10T23:01:54Z (GMT). No. of bitstreams: 1 7500270.pdf: 7433759 bytes, checksum: 40f46d0cace79973401c760f1798b69e (MD5) Previous issue date: 1974
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Integrated automotive exhaust engineering : uncertainty management
The global automotive industry has entered a stagnating period. Automotive OEMs and their tier suppliers are struggling for business growth. One of the most important strategies is to improve the engineering efficiency in the product development process. The engineering uncertainties have been …
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Inhalation exposure system for diesel exhaust particulates
… was modified to minimize the amount of diesel exhaust particulate (DEP) needed for animal inhalation exposures. Second, instrumentation was evaluated for aerosolizing DEP, monitoring the mass concentration and size distribution, and determining the uniformity of the aerosol.;The Jet-O-Mizer jet …
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Nascar Restrictor Plate Exhaust Manifold Design Strategies
This paper presents the results of a study on exhaust manifold design for a NASCAR Restrictor plate internal combustion engine. A computer simulation model was developed using Ricardo WAVE software. WAVE is a computer-aided engineering code developed by Ricardo to analyze the dynamics of pressure …
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Aerodynamics of Low Pressure Steam Turbine Exhaust Systems
The low pressure (LP) exhaust system presents a promising avenue for improving the performance of large steam turbines. For this reason, LP exhaust systems have attracted the attention of the research community for decades. Nevertheless, we still lack understanding of the flow physics and loss …
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Effects of exhaust gas recirculation on exhaust nitric oxide concentrations, cycle-to-cycle variations, and flame speed in an S.I. engine.
Thesis: M.S., Massachusetts Institute of Technology, Department of Mechanical Engineering, 1973
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Assessment of exhaust emissions from imported used Motor Vehicles
… the tailpipe emission tests conducted, the exhaust contents were CO, CO2, NOX, and HC. Lambda and O2 contents were also measured to establish whether the engines in the motor vehicles presented were operating at stoichiometry or sub-stoichiometry ratios. The average emission levels found …
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Hot flow testing of multiple nozzle exhaust eductor systems.
… flow model tests of multiple nozzle gas turbine exhaust eductor systems were conducted to evaluate the temperature effects of several eductor design modifications. A one-dimensional analysis of a simple eductor system based on conservation of momentum for an incompressible gas was used in …
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Combustion gas generator for gas turbine exhaust systems modeling.
… purpose of modeling shipboard gas turbine engine exhaust systems. In particular, the system was designed and validated for exhaust stack Mach numbers in the neighborhood of 0.07 and exhaust stack temperatures varying from 700 to 900°F with an exhaust stack inside diameter of 7.122 inches. …
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Implementation of Microwave Transmissions for Rocket Exhaust Plume Diagnostics
<p>Rocket-launched vehicles produce a trail of exhaust that contains ions, free electrons, and soot. The exhaust plume increases the effective conductor length of the rocket. A conductor in the presence of an electric field (e.g. near the electric charge stored within a cloud) can channel an …
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Exhaust Noise and Unsteady Gas Flow in Reactive Mufflers
Made available in DSpace on 2014-12-11T17:36:08Z (GMT). No. of bitstreams: 1 7405674.pdf: 5422366 bytes, checksum: 801d61473048c05aeec2e8f0b7ca991b (MD5) Previous issue date: 1973
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Vortex valve exhaust-driven pressure oscillations in hybrid combustion.
Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics. Thesis. 1971. M.S.
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Investigation of Fouling in Wavy-Fin Exhaust Gas Recirculators
… study undertaken on the subject of fouling of Exhaust Gas Recirculator (EGR) coolers. The fouling process in EGR coolers is identified to be due to two primary reasons — deposition of fine soot particles and condensation of hydrocarbons known as dry soot and wet soot fouling, respectively. …
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The Origin of Polycyclic Aromatic Hydrocarbons in Diesel Exhaust Emissions
Emission limits for diesel engine exhaust pollutants are being continually reduced in line with increasingly stringent emissions legislation. Essential to the task of reducing diesel exhaust emissions is an understanding of the origin of the exhaust pollutants. This research has investigated the …
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On Aerothermal Optimization of Low-Pressure Steam Turbine Exhaust System
… optimization of Low-Pressure Steam Turbine Exhaust System (LPES). The first one is the high computational cost due to the complexity of LPES geometry. To make things worse, designers have to consider extra cost caused by change of constraints, multi-objective and multi-disciplinary …
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Applications of baffles and exhaust energy to motorcycle cylinder cooling
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1943.
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Micro-physical modeling of aircraft exhaust plumes and condensation Trails
The ability to quantitatively assess the environmental impacts of air transport operations is necessary to estimate their current and future impacts on the environment. Emissions from aircraft engines are a significant contributor to atmospheric NOx driving climate change, air quality impacts and …
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