Search for dissertations about: "fuel size"

Showing result 1 - 5 of 290 swedish dissertations containing the words fuel size.

  2. 1. Loading and Size Distribution of Fuel in a Fluidised Bed Combustor

    Author : Henrik Thunman; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fuel size distribution; heat and mass transfer to a fuel particle; fragmentation; two-color pyrometry; Fludized bed; fuel loading; parametric study;

    Abstract : .... READ MORE

  4. 2. On direct hydrogen fuel cell vehicles : modelling and demonstration

    Author : Kristina Haraldsson; Per Alvfors; Dougal J. Nelson; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical engineering; direct hydrogen; Proton Exchange Membrane; PEM; fuel cell; fuel cell vehicle; fuel cell hybrid vehicles; on-board hydrogen storage; Kemiteknik; Chemical engineering; Kemiteknik;

    Abstract : In this thesis, direct hydrogen Proton Exchange Membrane (PEM) fuel cell systems in vehicles are investigated through modelling, field tests and public acceptance surveys. A computer model of a 50 kW PEM fuel cell system was developed. The fuel cell system efficiency is approximately 50% between 10 and 45% of the rated power. READ MORE

  5. 3. Fuel conversion and ash formation interactions : a thermochemical study on lignocellulosic biomass

    Author : Anna Strandberg; Markus Broström; Rainer Backman; Christoffer Boman; Maria Zevenhoven; Umeå universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Char conversion; pyrolysis; devolatilization; ash transformation; biomass; fuel characterization; fuel composition; ash composition; silicate formation; carbonate formation; thermogravimetric analysis; micro-tomography;

    Abstract : Biomass is considered to be CO2 neutral, and to be able to reduce the dependency on fossil fuels the need for expanded and sustainable biomass feedstock is increasing. Ash-related problems are some of the most important aspects of this increasing use of new biomass assortments in thermal energy conversion systems. READ MORE

  6. 4. Studies of Nuclear Fuel Performance Using On-site Gamma-ray Spectroscopy and In-pile Measurements

    Author : Ingvar Matsson; Anders Bäcklin; Ane Håkansson; Björn Grapengiesser; Riitta Kyrky-Rajamäki; Uppsala universitet; []
    Keywords : Nuclear physics; fission gas release; nuclear fuel; core physics; gamma-ray spectroscopy; LOKET; thermal power; burnup; fuel failure; validation; cladding; Kärnfysik;

    Abstract : Presently there is a clear trend of increasing demands on in-pile performance of nuclear fuel. Higher target burnups, part length rods and various fuel additives are some examples of this trend. READ MORE

  7. 5. On aircraft fuel systems : conceptual design and modeling

    Author : Hampus Gavel; Petter Krus; Johan Ölvander (Andersson); Dieter Scholz; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Aircraft; morphological matrix; simulation; Saab; Gripen; Construction engineering; Konstruktionsteknik;

    Abstract : The largest and most important fluid system in an aircraft is the fuel system. Obviously, future aircraft projects involve the design of fuel system to some degree. In this project design methodologies for aircraft fuel systems are studied, with the aim to shortening the system development time. READ MORE