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 58 for “"Emission control"”.
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Mechanistic Investigation of FCC CO/NOx Emission Control Additives
… the different technologies currently employed to control these pollutants, the use of catalytic additives is the most attractive one, as it is simple, cost-effective, and applicable to existing FCC units without the need for equipment retrofit. Most of the modern refineries already use catalytic …
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Plasmonic metamaterial for structural color printing and spontaneous emission control
… color printing, and quantum emitter spontaneous emission enhancement.</p><p>In this dissertation two of the most important applications will be addressed. The first application is structure color printing and the other is to control the spontaneous emission rate of quantum emitters such as …
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In-situ nitric oxide sensor for powerplant emission control, An
Includes bibliographical references (pages 139-143).
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Particle matter emission control and related issues for diesel engines
… of the most critical issues of the diesel engine emissions. After years of research, people begin to understand it further, with respect to its impact on the environment and human health, its formation mechanism inside and outside the diesel engine, and most importantly, the methods to control its …
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LNG as a transition fuel for shipping in emission control areas
… generates approximately 3% of annual greenhouse emissions. This project examines ways of reducing the emissions ocean-going vessels generate whilst in port. Real power requirement data were collected from various commercial vessels (tankers, bulk carriers, and a containership) around the world. …
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Managing the implementation of automotive emission control technologies using systems engineering principles
… have been forced to comply with ever tightening emission regulations. This thesis describes an original investigation into the conflicting clockspeeds that prohibit rapid integration of new automobile emission technologies into production automobiles. Common themes and barriers to technology …
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Applied and Fundamental Studies of LNT-SCR Dual-layer Monolithic Catalysts for Lean NOx Emission Control
… both greenhouse gas (GHG) and tailpipe NOx emission standards have driven the continuous improvement of commercial deNOx technologies, NOx reduction & storage (NSR, also referred to as lean NOx trap (LNT)) and selective catalytic reduction (SCR) technologies. This dissertation conducts …
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Development and assessment of model-based and sensor-based algorithms for combustion and emission control in diesel engines
L'abstract è presente nell'allegato / the abstract is in the attachment
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A comparative study of South African and Nigerian legislation relating to control of gas emission
… of South Africa and Nigeria as tools for control of gas emission within the context of the universal morality of environmental protection. The study highlights the other side of industrial activities - the devastating effect on health, community and the natural environment of the release …
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APPLICATION OF CONDITIONAL SIMULATION MODEL TO RUN-OF-MINE COAL SAMPLING FREQUENCY DETERMINATION AND COAL QUALITY CONTROL AT THE POWER PLANT (BLENDING, GOAL PROGRAMMING, MICROCOMPUTER).
… the disposition of ROM coal for an overall emission control strategy. Determination of the amount of sample, or still better, the frequency of ROM coal sampling is thus essential to the analysis of overall emission control strategies. A simulation model of a portion of the Upper Freeport …
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ΣΥΣΧΕΤΙΣΗ ΠΑΡΑΜΕΤΡΩΝ ΛΕΙΤΟΥΡΓΙΑΣ ΚΙΝΗΤΗΡΩΝ ΑΥΤΟΚΙΝΗΤΩΝ ΠΡΟΣ ΤΗΝ ΠΟΙΟΤΗΤΑ ΤΟΥ ΚΑΥΣΑΕΡΙΟΥ
… AFFECTINGTHE ABOVE MENTIONED SYSTEMS ON EXHAUST EMISSION AND TO DEVELOP A SHORT TEST FOR EMISSION CONTROL. THE PROPER INSPECTION AND MAINTENANCE STRATEGY IN RELATION TO THE LEGISLATION ON ENVIRONMENTAL POLLUTION FROM EXHAUST EMISSIONS IS ALSO PRESENTED.
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Operational and policy implications of managing uncertainty in quality and emissions of multi-feedstock biodiesel systems
… of low lifecycle greenhouse gas (GHG) emissions of biodiesel were one of the main drivers behind extensive government support in the form of financial incentives for the industry. However, several recent studies have reported a high degree of uncertainty and variation (U&V) in these …
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Industry Usage, Stakeholder Perceptions, and Usability Characteristics of Hazard Controls Leading to the Development of a Design Process and Taxonomy for Large Handheld Powered Equipment.
… Study 1 assessed current industry usage of dust control technologies and stakeholder perceptions in the concrete and masonry trades. Study 2 was similar but assessed emission control technologies in the asphalt roofing trade. Study 3 used the information from studies 1 and 2 to select a tool for …
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Characterization of exhaust emissions from catalyzed trap-equipped non-road heavy-duty diesel engines
An emissions and engine performance study was conducted to explore the effects of ultra low sulfur fuels on an off-road, heavy-duty engine retrofitted with catalyzed traps. The study was conducted, on an 8 cylinder, mechanically controlled Caterpillar 3408, rear engine of a Scraper. An in-field …
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Reaction and Transport Coupling in Multi-Functional Catalysts for Selective Oxidation of Ammonia to Nitrogen
… oxidization of NH3 to N2 in the diesel engine emission control system. Pt catalyzes the oxidation of NH3 to four products (N2, N2O, NO, NO2) while the metal-exchanged zeolite concurrently catalyzes the selective catalytic reduction of NO/NO2 with NH3, directing the product mixture towards N2. …
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Mobility of the future : typologizing global cities for the simulation of future urban mobility patterns and energy scenarios
… changes motivated by population growth and emission control. In order to feasibly simulate these scenarios on a global scale, we need to first determine a few prototypical cities that best represent the entire world, each exhibiting qualities that encompass the group to which it belongs. Our …
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Catalytic control of individual hydrocarbons from a small utility gasoline engine
Recent approval of emission standards for small utility engines by the California Air Resources Board suggested that substantial reductions in emissions from small utility engines will soon be required. Although the 1994 standards can be met by simple engine modifications, the 1999 standards may …
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An Experimental Investigation into NOx Control of a Gas Turbine Combustor and Augmentor Tube Incorporating a Catalytic Reduction System
… was conducted to examine the feasibility of NO x emission control using catalytic reduction techniques in the jet engine test cell environment. A modified T-63 gas turbine combustor and an augmentor tube, 21 feet in length and containing a perlite catalyst, were used as a gas generator and …
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