Topic
Combustion
About: Combustion is a research topic. Over the lifetime, 172336 publications have been published within this topic receiving 1950787 citations. The topic is also known as: burning & combusting.
Papers published on a yearly basis
Papers
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TL;DR: In this paper, the wavelength dependence of light absorption by aerosols collected on filters is investigated throughout the near-ultraviolet to near-infrared spectral region using an optical transmission method.
Abstract: [1] The wavelength dependence of light absorption by aerosols collected on filters is investigated throughout the near-ultraviolet to near-infrared spectral region. Measurements were made using an optical transmission method. Aerosols produced by biomass combustion, including wood and savanna burning, and by motor vehicles, including diesel trucks, are included in the analysis. These aerosol types were distinguished by different wavelength (λ) dependences in light absorption. Light absorption by the motor vehicle aerosols exhibited relatively weak wavelength dependence; absorption varied approximately as λ−1, indicating that black carbon (BC) was the dominant absorbing aerosol component. By contrast, the biomass smoke aerosols had much stronger wavelength dependence, approximately λ−2. The stronger spectral dependence was the result of enhanced light absorption at wavelengths shorter than 600 nm and was largely reduced when much of the sample organic carbon (OC) was extracted by dissolution in acetone. This indicates that OC in addition to BC in the biomass smoke aerosols contributed significantly to measured light absorption in the ultraviolet and visible spectral regions and that OC in biomass burning aerosols may appreciably absorb solar radiation. Estimated absorption efficiencies and imaginary refractive indices are presented for the OC extracted from biomass burning samples and the BC in motor vehicle-dominated aerosol samples. The uncertainty of these constants is discussed. Overall, results of this investigation show that low-temperature, incomplete combustion processes, including biomass burning, can produce light-absorbing aerosols that exhibit much stronger spectral dependence than high-temperature combustion processes, such as diesel combustion.
1,283 citations
TL;DR: In this paper, a detailed chemical kinetic mechanism has been developed and used to study the oxidation of iso-octane in a jet-stirred reactor, flow reactors, shock tubes and in a motored engine.
1,279 citations
TL;DR: In this article, the effects of variable thermophysical properties, non-unitary Lewis number in the gas film, and effect of the Stefan flow on heat and mass transfer between the droplet and the gas, and the effect of internal circulation and transient liquid heating are investigated.
1,268 citations
TL;DR: In this article, a simplified mechanism for the electrochemical oxidation or combustion of organics is presented according to which selective oxidation occurs with oxide anodes (MOx) forming the so-called higher oxide MOx+1 and combustion occurs with electrodes at the surface of which OH radicals are accumulated.
1,237 citations
16 May 2012
TL;DR: In this article, the basic principles of biomass fuel properties and basic properties of bio-combustion systems are discussed and a detailed overview of the technologies for industrial and district heating systems is presented.
Abstract: Introduction. Biomass Fuel Properties and Basic Principles of Biomass Combustion. Biomass Fuel Supply and Pre-treatment. Domestic Wood-Burning Appliances. Combustion Technologies for Industrial and District Heating Systems. Power Generation and Co-generation. Co-combustion. Biomass Ash Characteristics and Behaviour in Combustion Systems. Environmental Aspects of Biomass Combustion. Policies. Research and Development: Needs and Ongoing Activities. Index
1,221 citations