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 18 of 18 for “"Single cylinder engine"”.
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Characterizing and designing engine manifolds for single-cylinder engine turbocharging
… and fuel economy of an internal 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 …
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Study of Ultra-low Emissions Diesel Combustion Systems by Synergetic Application of 3D-CFD and Single-Cylinder Engine
L'abstract è presente nell'allegato / the abstract is in the attachment
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Emission Reduction and Assisted Combustion Strategies for Compression Ignition Engines with Subsequent Testing on a Single-Cylinder Engine
… forth by the Environmental Protection Agency, engine researchers and manufacturers are testing and developing various emission reduction strategies for compression ignition engines. This thesis contains three sections where the author details two separate strategies for emission reduction and …
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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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Implementation of a fully variable valve actuation valvetrain
… the Sasol Advanced Fuels Laboratory's (SAFL) single cylinder research engine was not in line with the current engine technologies, in particular Fully Variable Valve Actuation (FVVA). This project represented the first stage of the engine upgrade, which was to modify the current single …
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Development of a High Speed Data Acquisition System for Spark Ignition Engine
Full engine control can only be accomplished with multi-input multi-output (MIMO) control system requiring measurement of variables for which no sensor/instrument is yet available in the Renewable Energy and Engines Laboratory, therefore a less detailed single input single output (SISO) engine …
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A study of oil-film performance between piston rings and cylinder wall by the electrical measurements
… oil film performance between piston rings and cylinder walls. An apparatus was constructed to measure the instantaneous changes in resistance across the oil film. A piston ring of an air-cooled single cylinder engine was insulated from the rest of the piston using Teflon. A bridge circuit was …
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The design of a prototype Otto-Atkinson engine and evaluation of the part load fuel efficiency
… the part load fuel efficiency of spark-ignition engines. The primary objective of this thesis was to investigate the technical feasibility of the modified Atkinson cycle as a spark-ignition engine concept and thus to quantify the associated potential for greater fuel efficiency. The modified …
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Qualitative Adaptive Identification for Powertrain Systems. Powertrain Dynamic Modelling and Adaptive Identification Algorithms with Identifiability Analysis for Real-Time Monitoring and Detectability Assessment of Physical and Semi-Physical System Parameters
… dynamic model of a complete transient engine testing facility, consisting of a single cylinder engine, an alternating current dynamometer and a coupling shaft unit, is developed to investigate the functional relationships of the inputs, outputs and parameters of the system. Having …
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The potential of dissociated methanol as a fuel for spark ignition engines
… the exhaust emissions of an internal combustion engine. It is assumed that liquid methanol will be dissociated onboard a vehicle using engine waste heat to produce a gas consisting of hydrogen and carbon monoxide in a molar ratio of 2:1. Tests were conducted on a single cylinder engine using …
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A critical study of various types of exhaust gas analyzers for gasoline engines
… quite common practice in automotive and aircraft engine maintenance, operation, and research to employ any one of several types of instruments now on the market for determining the air-fuel ratio by exhaust gas analysis. It was the purpose of this investigation to determine the most important …
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Improving the Efficiency of Gas Engines using Pre-chamber Ignition
… and understand the combustion phenomenon in engines operating on gaseous fuels, and develop technologies as an alternative to the present diesel engine technologies for heavy duty applications; which are facing severe challenges like stringent emissions norms, high technology costs and …
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Investigating the feasibility of characterising gasoline autoignition using a motored engine apparatus
… from chemical kinetics modelling. Motored engines have been used extensively for the investigation of autoignition properties of fuels. They are useful in interpreting results from conventional ignition delay measuring systems as well as giving practical insight into the process of …
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Investigation to direct ethanol injection in spark ignition gasoline engines
… and efficiently. The effect of EDI+GPI on engine performance has been experimentally investigated on a 249cc, 4 stroke, air cooled single cylinder engine which was modified by adding an ethanol fuel direct injection system. The research purpose was focused on efficiency improvement …
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Combustion quality and regimes for standard and alternative fuels
… require the next generation internal combustion engine (ICE) to yield lower pollutant emissions and higher fuel efficiency. Various alternative fuels and combustion strategies and regimes have shown great potential in meeting these goals. The work done in this dissertation aims at exploring …
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A comprehensive analysis of natural gas direct injection and of mixture formation in spark ignition engines
… of hydrocarbons in internal combustion engine (ICE). Since this is still expected to be the main technical solution to fulfil the mobility demand, more secure and sustainable fuel sources are needed. Natural gas (NG), which is composed primarily of methane, is regarded as one of the most …
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Benchmarking, Characterization and Tuning of Shell EcoMarathon Prototype Powertrain
… this energy conserving mindset by challenging engineering students around the world to design and build ultra-efficient vehicles to compete regionally. This requires synchronization of engineering fields to ensure that the vehicle and powertrain system work in parallel to achieve similar …