Soot and NO[subscript X] Emissions and Combustion Characteristics of Direct Injection Diesel Engine PDF Download
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![Soot and NO[subscript X] Emissions and Combustion Characteristics of Direct Injection Diesel Engine PDF](https://books.google.com/books/content/images/frontcover/NtSftgAACAAJ?fife=w150-h200)
Author: Messiha Todary Saad
Publisher:
ISBN:
Category :
Languages : en
Pages : 358
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![Soot and NO[subscript X] Emissions and Combustion Characteristics of Direct Injection Diesel Engine PDF](https://books.google.com/books/content/images/frontcover/NtSftgAACAAJ?fife=w80-h100)
Author: Messiha Todary Saad
Publisher:
ISBN:
Category :
Languages : en
Pages : 358
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 117
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Performance and emissions data were gathered on a normally aspirated single cylinder DI engine with various combinations of ceramic coatings installed. Thin ceramic thermal barrier coatings were applied to the piston crown and bowl, the head and valves, and the cylinder liner. The coated piston and head were run singly and in combination with the cylinder liner to investigate the effects of these different coated surfaces on emissions and performance. Coating the piston crown alone results in generally lower cylinder pressure, lower brake specific fuel consumption and lower NO(x) emission compared to the baseline engine. Soot emission is typically increased below 2000 RPM and decreased above 2000 RPM. Coating the head alone reduces cylinder pressure, but generally increases specific fuel consumption and NO(x) and soot emission. The KIVA-II code was used to model the Hydra engine with the thermal coatings. The computer modeling has led to an understanding of the effect of coating the piston on NO production. The hotter piston crown warms the intake air, shortening ignition delay and decreasing the ratio of premixed to diffusion combustion, ultimately resulting III lower peak cylinder temperature and reduced NO. The KIVA-II results agree reasonably well with the experimental data for cylinder pressure and NO and soot emission. Diesel combustion, Low heat rejection engines, NO(x) Emission, Soot emission, Thermal barrier coatings.
Author: E. M. Afify
Publisher:
ISBN:
Category :
Languages : en
Pages : 106
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A CLR single cylinder diesel engine is used to determine the effect of air content in the emulsified fuel on the performance, exhaust emissions and ignition delay of diesel engines. The experiments were conducted using diesel fuel no. 2 and JP-4 as baseline fuels and emulsions containing 15%, 30% and 45% water by volume. The air charge temperature was varied from 88 F to 302 F. The effects associated with use of the emulsions on performance, ignition delay and exhaust emissions were determined by making detailed measurements of fuel consumption, engine operating parameters and exhaust emissions. The results showed that slight improvement in Brake Specific Fuel Consumption (BSFC) was observed when emulsions with low water content were used at high speeds. For high water content emulsions, the BSFC increased. Heating the intake air increased the BSFC at high engine loads and slightly improved it at low engine loads. While the ignition delay was found to increase with the increase of the water percentage in the emulsion, preheating the air charge was effective in reducing it. Although, NO sub x and soot formation were reduced effectively with the increase of water content in the emulsion, preheating the air charge adversely affected NO sub x and soot emissions. While CO and VHC emissions increased with the increase of the water content in the emulsion, increasing the intake air temperature slightly reduced carbon monoxide and unburned hydrocarbons at low loads. Keywords: Combustion; Exhaust emissions; Water/Oil emulsions.
Author: Carl-Anders Hergart
Publisher:
ISBN: 9783826590061
Category : Diesel motor
Languages : en
Pages : 167
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Author: Society of Automotive Engineers
Publisher:
ISBN:
Category : Air
Languages : en
Pages : 154
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Author: M. A. Patterson
Publisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 18
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Author: Tina R. Fuchs
Publisher:
ISBN:
Category :
Languages : en
Pages : 292
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Author: Salih Manasra
Publisher:
ISBN: 9783832530013
Category :
Languages : en
Pages : 0
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There is interest in a substitution of conventional diesel fuel by alternative hydrocarbons. For example natural gas can be converted into liquid hydrocarbons using the Fischer-Tropsch process. Resulting Gas-To-Liquid (GTL) fuels may have considerable advantages with respect to their combustion. GTL fuels are appropriate for conventional diesel engines provided their operation is modified. In this context the injection strategy including injection timing and pressure is most important for the combustion process and resulting pollutants. In his experiments, the author has studied injection and combustion of GTL fuels. His investigations were focused on observing, characterizing and comparing soot formation in GTL fueled diesel engines.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 31
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Author: Gregory James Hampson
Publisher:
ISBN:
Category :
Languages : en
Pages : 618
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Typescript.
