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 14 of 14 for “"Multi cylinder"”.
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Characterization and Control of Multi-Cylinder Partially Premixed Combustion
… This thesis presents the development of a multi-cylinder PPC concept. It reaches from the basic characterization of this new combustion strategy to the demands on hardware, control and fuels for a realizable PPC solution. In summary it contains a thorough PPC characterization where the …
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Thermal Analysis of Multi-Cylinder Drying Section with variant Geometry
… model was developed for the drying process in a multi-cylinder drying section. The unsteady state of one-dimensional heat conduction equation has been applied to mathematical model of both, cylinder shell and paper web. The internal mass transfer of the paper web has not been included in this …
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Control Structures for Low-Emission Combustion in Multi-Cylinder Engines
… transients. Experiments were performed on a six-cylinder heavy-duty engine, and multi-cylinder effects and complications were explicitly considered in the work.
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DETAILED SPACIAL AND TIME RESOLVED STUDIES OF LUBRICANT DEGRADATION IN MULTI-CYLINDER DIESEL ENGINES
… out on a Caterpillar 3406B, a commercial, multi-cylinder, 'low emission' diesel engine. The work evaluated oil mass and gas flow, the chemical and physical degradation of commercial and experimental lubricants, the effects the sulphur content in diesel fuels had on the particulate size in …
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Further studies of unsteady gas flow in the manifolds of multi-cylinder automobile engines
This thesis describes an investigation into the general principles of unsteady flow in pipe systems, with analysis of specific flow regions in the manifolds of a carburetted, four-stroke, automotive engine. The unsteady flow calculation is effected by the method of characteristics under the …
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The Effect Of Biodiesel Blends On A Multi-Cylinder Engine And The Impact On Aftertreatment
… then blended with ULSD and tested in single and multi-cylinder engines. The proceeding work specifically focuses on results from a multi-cylinder engine coupled with a diesel oxidation catalyst, diesel particulate filter and a selective catalytic reduction catalyst and the effect that biodiesel …
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Closed-Loop Combustion Control of a Multi Cylinder HCCI Engine using Variable Compression Ratio and Fast Thermal Management
… time history of pressure and temperature in the cylinder. The most common way to do this in the lab has been to control the inlet air temperature and thereby the temperature in the cylinder at the end of the compression stroke. With an electrical heater this is a slow parameter to control. In the …
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Thermal efficiency and emission analysis of advanced thermodynamic strategies in a multi-cylinder diesel engine utilizing valve-train flexibility
… Fortunately, and as this thesis describes, cylinder deactivation can be used to increase exhaust temperatures above 300°C at the loaded idle condition without increasing fuel consumption. Further, at the unloaded idle condition, the combination of cylinder deactivation and flexible valve …
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Design and analysis of a turbocharged single cylinder diesel engine intake system for increased power output and transient response
Small displacement, single-cylinder diesel engines have many applications in developing countries such as small-powered agricultural equipment, water pumps, and other power sources. Research has shown that the power of a turbocharged single-cylinder engine can match that of a larger displacement …
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A methodology for turbocharging single cylinder four stroke internal combustion engines
… presents a method for turbocharging single cylinder four stroke internal combustion engines, a model used to evaluate it, an experimental setup used to test it, and the findings of this experiment. A turbocharged engine has better fuel economy, cost efficiency, and power density than an …
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Development of Optimisation Methodologies for the Internal Combustion Engine Airbox
… in future to encompass unsteady<br/>flow and multi-cylinder engines.<br/><br/>The work reviews the current thinking on methods used to optimize CFD<br/>problems and how this would apply to the optimization of an airbox for an<br/>internal combustion engine. The investigation then continues to …
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Characterizing and designing engine manifolds for single-cylinder engine turbocharging
… combustion engine. It is commonly used on multi-cylinder engines, but not on commercial single-cylinder engines due to the phase mismatch between the exhaust stroke (when the turbocharger is powered) and the intake stroke (when the engine requires the compressed air). This work explores …
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Opposing effects of recirculated gases during cranking on cold start of diesel engines
… In the strategy, the gases leaving the cylinder during the cranking period are recycled back into the intake manifold using two different methods. In the first method the engine-out gases during cranking are recirculated into the intake manifold and their rate is controlled by a CGR …
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A comprehensive analysis of natural gas direct injection and of mixture formation in spark ignition engines
… experimental activity performed on the developed multi-cylinder engine and on an optical access single-cylinder engine, in order to obtain more detailed knowledge of the DI CNG engine behaviour. The thesis is divided into six chapters. After a short introduction related to the transportation …