Sökning: "combustion"

Visar resultat 16 - 20 av 1282 avhandlingar innehållade ordet combustion.

1. 16. Laser Diagnostics of HCCI and Partially Premixed Combustion

   Författare :Leif Hildingsson; Förbränningsmotorer; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; low temperature combustion; Motorer; Motors and propulsion systems; Teknik; Technological sciences; PIV; in-cylinder flow structures; hydroxyl; OH; partially-oxidized fuel; formaldehyde; HCOH; LIF; diesel combustion; partially premixed combustion; PPC; HCCI; framdrivningssystem;

   Sammanfattning : The work presented in this thesis deals with measuring in-cylinder combustion species and events using different laser-based diagnostic methods. A variety of engine operating modes, like HCCI and partially premixed diesel combustion, have been investigated. LÄS MER

3. 17. Development and Application of Laser Techniques for Studying Fuel Dynamics and NO Formation in Engines

   Författare :Öivind Andersson; Förbränningsmotorer; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Motors and propulsion systems; LIF; Laser Diagnostics; Rayleigh Scattering; Fluorescence; Combustion; Pollutant; Nitric Oxide; Spray Combustion; DME; Laserteknik; Laser technology; Motorer; framdrivningssystem; Physics; Fysik; Fysicumarkivet A:2000:Andersson;

   Sammanfattning : Development and application of some laser techniques for the study of engine combustion are presented. The investigations mainly cover two aspects: fuel dynamics and formation of NO. LÄS MER

4. 18. Catalytic combustion of methane

   Författare :Philippe Thevenin; KTH; []
   Nyckelord :catalytic combustion; gas turbine; methane; palladium; alumina; barium; lanthanum; oxidation; preparation; temperature-programmed oxidation TPO ; decomposition; reoxidation; X-ray photoelectron spectroscopy XPS ; metal-support interaction; deactiva;

   Sammanfattning : Catalytic combustion is an environmentally benign technologywhich has recently reached the stage of commercialization.Palladium is the catalyst of choice when considering gasturbines fuelled with natural gas because of its superioractivity for methane oxidation. LÄS MER

5. 19. Application of laser diagnostics for two-phase imaging of fuel sprays and quantitative measurements of combustion radicals and soot

   Författare :Stina Hemdal; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; two-phase imaging; laser diagnostics; premixed flame; soot; fuel sprays; intermediates; combustion; cavity ringdown spectroscopy; spectroscopy; tracers; laser-induced exciplex flourescence; catalytic combustion; laser induced flourescense; emission; diffusion flame;

   Sammanfattning : .... LÄS MER

7. 20. Principles and Models of Solid Fuel Combustion

   Författare :Henrik Thunman; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; wood; single particle; modelling; fluidized bed; thermochemical conversion; fixed bed; coal; thermal conductivity; fuel loading; measurements; thermochemical properties; biofuels; combustion; grate;

   Sammanfattning : Combustion of solid fuels stands for a substantial part of the heat and power production in the world. In this thesis different aspects related to the thermochemical conversion of solid fuels in fluidized and fixed beds are treated, such as: the combustion temperature of a fuel particle related to the surrounding temperature in a fluidized bed combustor (FBC); the fuel loading in a FBC; a transient description of the conversion of non-spherical fuel particles; the thermochemical properties and composition of volatiles released from wood; the thermal conductivity of wood during different stages of conversion; the modelling of a grate furnace; the general combustion behaviour of a fixed bed on a reciprocating or a travelling grate; and finally, the design and construction of experimental units for investigation of combustion in a fixed bed. LÄS MER