Sökning: "Emissions reduction"

Visar resultat 1 - 5 av 488 avhandlingar innehållade orden Emissions reduction.

  1. 1. Pulsating Combustion - Combustion Characteristics and Reduction of Emissions

    Författare :Annika Lindholm; Förbränningsfysik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Exhaust gas recirculation; NOx; Heat Release; Combustion related radicals; Laser based measurements; Pulsating Combustion; Unsteday Flow; Emissions; Combustion; Energy research; Energiforskning;

    Sammanfattning : In the search for high efficiency combustion systems pulsating combustion has been identified as one of the technologies that potentially can meet the objectives of clean combustion and good fuel economy.Pulsating combustion offers low emissions of pollutants, high heat transfer and efficient combustion. LÄS MER

  3. 2. Reduction of N₂O emissions from fluidized bed boilers through gas injection

    Författare :Lennart Gustavsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; gas injection; N2< sub>O; N2< sub>O reduction; fliudized bed boilers; emissions; nitrous oxide;

    Sammanfattning : .... LÄS MER

  4. 3. Automatic Reduction Procedures for Chemical Mechanisms in Reactive Systems

    Författare :Terese Lövås; Förbränningsfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mechanism Reduction; Combustion; Physics; Emissions; Fysik; Fysicumarkivet A:2002:Lövås;

    Sammanfattning : To deal with complex physical and chemical processes in reactive systems, such as combustion processes, it is necessary to find methods that simplify modelling in such a way that it becomes both more comprehensible and practically useful. In the work reported here a method for automatically reducing chemical reaction mechanisms has been developed for use in computer simulations of various combustion systems. LÄS MER

  5. 4. Polycyclic aromatic compounds (PAC) in diesel fuels and exhaust emissions : aspects of sampling techniques, chemical determination, multivariate data interpretation and PAC emissions reduction

    Författare :Hang Li; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The rapid growth in the number of motor vehicles has raised serious environmental health hazard problems in urban areas associated with vehicle exhaust emissions. Exhaust emissions from heavy duty diesel vehicles are very complex mixtures containing thousands of chemical components distributed between the particulate, semivolatile and gaseous phases. LÄS MER

  7. 5. Reducing Radon Gas Emissions in Concrete

    Författare :Magnus Döse; Johan Silfwerbrand; Franz Josef Maringer; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Radon gas; emissions; health; concrete; building materials; ionizing radiation; Betongbyggnad; Concrete Structures;

    Sammanfattning : Several compulsory regulations and recommendations regarding ionising radiation for building products have been introduced in recent years. Furthermore, industry-affiliated aggregate and concrete companies strive to implement environmental goals that should be fulfilled regarding building materials. LÄS MER