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 12 of 12 for “"combustion air"”.
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Design and development of a microwave-enhanced diesel soot oxidation system
… initial collected soot mass, preheating time, combustion airflow, and combustion air temperature. (Abstract shortened by UMI.).
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Pyrolysis oil combustion characteristics and exhaust emissions in a swirl-stabilized flame
… been developed to allow for the investigation of combustion characteristics of biomass derived pyrolysis oils in pressure-atomized and air-atomized spray flames. Pine and corn fiber derived pyrolysis oil have been studied, with light fuel oil (LFO) used as a baseline fuel for comparison. Gaseous …
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Development of air/fuel ratio control and secondary combustion for a commercial-scale biomass-fueled boiler
… testing, and modeling of a multi-fuel biomass combustion system is described. The system is developed by adding air/fuel ratio control and catalytic secondary combustion to a commercially available 150 kW biomass-fueled boiler. The basis of the air/fuel ratio control system is an inexpensive …
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CFD Modelling of the Mixture Preparation in a Modern Gasoline Direct Injection Engine and Correlations with Experimental PN Emissions
… out to reveal the connections between pre-combustion mixture indicators and PN emissions. Firstly, a novel calibration methodology is introduced to accurately predict the widely used characteristics of the high-pressure fuel spray. The methodology utilised the Siemens STAR-CD 3D CFD …
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Experimental and numerical investigation of flameless pulverised coal combustion
… to investigate the applicability of flameless combustion technology principles to pulverised coal combustion. Lab-scale experiments showed, that it is highly beneficial in terms of NOx reduction to use N2 as coal carrier instead of air. The finding has been supported by OH* chemiluminescence …
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A study on the flow characteristics of an industrial radiant tube burner
… validated modelling study of the flow of combustion air in an industrial radiant tube burner (RTB). The RTB is used typically in industrial heat treating furnaces. The work has been initiated because of the need for improvements in burner lifetime and performance which are related to the …
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Dynamic stability, blowoff, and flame characteristics of oxy-fuel combustion
Oxy-fuel combustion is a promising technology to implement carbon capture and sequestration for energy conversion to electricity in power plants that burn fossil fuels. In oxy-fuel combustion, air separation is used to burn fuel in oxygen to easily obtain a pure stream of carbon dioxide from the …
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The Monitoring and Control of Stoker-Fired Boiler Plant by Neural Networks
… coal boilers with a view to improving the combustion efficiency whilst minimising pollutant emissions. A novel Neural Network Based Controller (NNBC) was developed following a comprehensive set of experiments carried out on a stoker test facility at the Coal Research Establishment (CRE) …
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Rural electrification from local resources : biomass pyrolysis oil combustion in a direct injection diesel engine
… as potentially feasible renewable fuels. Combustion of pyrolysis oils in diesel engines has been scarcely studied, and the few studies which have been performed indicate that these fuels exhibit excessively long ignition delay, rendering them dependant on auxiliary ignition sources for …
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Development of Improved Mathematical Models for the Design and Control of Gas-Fired Furnaces
… steady-state operating conditions. In addition combustion is usually simplified, for example, by assuming nozzle mix burners where combustion is virtually complete within the burner. Moreover, the combustion products flow patterns have generally been simplified due to lack of realistic data on …
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Flash calcination of limestone in a bench-scale sorbent activation process (SAP) unit
… flue gas generated from burning coal contains air pollutants including sulfur oxides (SOx), hydrochloric acid (HCl) and elemental and ionic mercury (Hgo and Hg2+). A process option to remove these pollutants from the flue gas is by injection of sorbents downstream of a boiler and up-stream of a …
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Aerodynamický výpocet vzduchové části parního kotle
Cílem této práce je provést rozbor problematiky aerodynamického výpočtu parních kotlů na straně spalovacího vzduchu. Na základě projekční dokumentace provést stanovení dílčích ztrátových součinitelů jednotlivých komponent sacího traktu. Provést výpočet sumární tlakové (tahové) ztráty. …