The Experts below are selected from a list of 249 Experts worldwide ranked by ideXlab platform

Liu Shengyong - One of the best experts on this subject based on the ideXlab platform.

  • Observation and Analysis on Microstructure of Sawdust Briquette Fuel
    Energy Conservation Technology, 2010
    Co-Authors: Liu Shengyong
    Abstract:

    This paper takes sawdust briquette fuel as investigative object,for woody biomass occupies a large proportion of global biomass reserves.Elemental composition analysis,proximate fuel analysis and fuel composition analysis of sawdust briquette fuel were done in the experiment.Then we use the JEM-2100F Field Emission High Resolution Transmission Electron Microscope(FE-HRTEM) to observe the microstructure of sawdust briquette and get microstructure images of different amplifications:100,500,1000 and 2000.The research on microstructure of sawdust briquette can provide theoretical basis in the optimization design and improvement of biomass briquetting Equipment and Combustion Equipment.

  • Experiment and Analysis on the Slagging Characteristics of Sawdust Briquette
    Chemistry and Industry of Forest Products, 2008
    Co-Authors: Liu Shengyong, Li Wenya, Su Chaojie, Dang Yuli, Wang Xiyun, Wu Yang
    Abstract:

    According to GB/T 1572-2001(the measuring method of fuel slagging characteristics),GB/T 476-2001(ash and slag analytical method)and relevant judging rules,the slagging characteristics of sawdust briquette were analyzed.Results showed that sawdust briquette has the trends of slight slagging and slight contamination,which can be used as fuel for various stoves,to achieve safe,stable and economical Combustion.This study has supplied theoretical basis for designing Combustion Equipment of biomass briquette.

  • Experiment and Analysis on the Slagging Characteristics of Corn Straw Briquette
    Journal of Henan Agricultural University, 2006
    Co-Authors: Liu Shengyong
    Abstract:

    According to the measuring method of fuel slagging characteristics,ash and slag analytical method and relevant judging rules,the author analyzed the slagging characteristics of corn straw briquette through experiments.The results show that corn straw briquette has the trend of mid-slagging and mid-stain,which provides theoretical basis for designing Combustion Equipment of corn straw briquette.

Petr Kubesa - One of the best experts on this subject based on the ideXlab platform.

  • Emissions of Nanoparticles from Small Combustion Equipment with Regard to the Combustion Mode and Wood Humidity
    Advanced Materials Research, 2014
    Co-Authors: Vendula Drastichová, Lubomír Martiník, Jiří Horák, Kamil Krpec, František Hopan, Petr Kubesa
    Abstract:

    Contamination of air by solid particles is serious problem for human health and also environment, especially in certain regions of the Czech Republic and Poland. Small particles in nano-sizes are more dangerous than same weight of larger size. Negative effect namely of the solid particles depends on number, specific surface area, respirability and bonding of others substances (e.g. PAH, As, Cd, Zn, Cu etc.) which are higher for smaller (nano-sizes) particles compared to larger one. With the approaching winter, yearly problems with distribution of particles from small Combustion Equipments arise. The annual emission balance indicate that the proportion of small sources to total air pollution (PAH, dust) is surprisingly expressive [1]. For this reason mentioned above this contribution deals with measuring of amount, and distribution of nanoparticles produced form Combustion of wood in small Combustion unit. For Combustion test in grave-free stoves were used three samples of wood (wet spruce, dry spruce and raw spruce) and two Combustion modes. Nanoparticles from flue gas were characterized by the aperture low-pressure cascade impactor DLPI (separation and weighing of particles in sizes 30 ηm ÷ 10 µm). Wood were combusted in the form of ¼ logs.

  • Evaluation of Possible Use of Foliage as a Fuel for Small Combustion Equipment
    Advanced Materials Research, 2014
    Co-Authors: Lubomír Martiník, Vendula Drastichová, Jiří Horák, Zuzana Jankovská, Petr Kubesa
    Abstract:

    Biomass is a common fuel for small Combustion Equipment and also for heating plantsand power plants. Combustion of firewood, wood briquettes and pellets dominates in households.Thanks to high demand for biomass fuels its prices grow and it is necessary to look for cheaperalternatives. One of the alternative fuels can be foliage. In cities there is in autumn usually a plentyof fallen leaves. These leaves - foliage has to be composted or otherwise disposed of. Instead oftreating foliage as a waste it can be used as an alternative fuel. To serve as a viable fuel source thefoliage has to be processed into briquetts.This article deals with possibilities of producing briquettes from foliage and evaluation of theirCombustion quality in small Combustion Equipment.

Celia Alves - One of the best experts on this subject based on the ideXlab platform.

  • an overview of particulate emissions from residential biomass Combustion
    Atmospheric Research, 2018
    Co-Authors: E D Vicente, Celia Alves
    Abstract:

    Abstract Residential biomass burning has been pointed out as one of the largest sources of fine particles in the global troposphere with serious impacts on air quality, climate and human health. Quantitative estimations of the contribution of this source to the atmospheric particulate matter levels are hard to obtain, because emission factors vary greatly with wood type, Combustion Equipment and operating conditions. Updated information should improve not only regional and global biomass burning emission inventories, but also the input for atmospheric models. In this work, an extensive tabulation of particulate matter emission factors obtained worldwide is presented and critically evaluated. Existing quantifications and the suitability of specific organic markers to assign the input of residential biomass Combustion to the ambient carbonaceous aerosol are also discussed. Based on these organic markers or other tracers, estimates of the contribution of this sector to observed particulate levels by receptor models for different regions around the world are compiled. Key areas requiring future research are highlighted and briefly discussed.

J. Malaťák - One of the best experts on this subject based on the ideXlab platform.

  • By-products from methyl ester oil production and their thermal-emission properties.
    Research in Agricultural Engineering, 2018
    Co-Authors: J. Bradna, J. Malaťák
    Abstract:

    With the exhaustion of fossil energy sources in sight, the importance of the renewable sources of energy becomes one of the major conditions for permanently sustainable development not only in agriculture, but also in the society as a whole. The growing use of biodiesel has opened other areas of utilising the by-products from the manufac - ture of rape seed oil methyl ester (FARME) as an energy source, used in the Combustion Equipment designed for these alternative fuels. The aim of this paper is to assess the feasibility of utilising the by-products from the production of rape seed methyl ester as a source of energy, from ecology and economy aspects of the Combustion Equipment used. There - fore, the study is focused on the concentration of emissions generated by burning FARME, and distillation of residuals from FARME production plants. An important objective of this study lies in the determination of the stoichiometry characteristics of rape seed oil methyl esters and distillation residuals from FARME production plants. The following parameters are set by calculations: fuel heating power, oxygen amount (air) necessary for ideal Combustion, flue gases amount and composition, and flue gases specific weight.

  • Heat-emission analysis of small Combustion Equipments for biomass
    Research in Agricultural Engineering, 2018
    Co-Authors: J. Malaťák, L. Passian
    Abstract:

    Malaťak J., Passian L. , 2011. Heat-emission analysis of small Combustion Equipments for biomass . Res. Agr. Eng., 57: 37–50. The article addresses the urgent questions regarding the use of biomass as a fuel for Combustion Equipment of the heat output up to 25 kW. The article is based on the determined elemental analyses of six samples of fuel taken both from the wood mass and herbaceous biomass. These samples underwent the stoichiometric analysis of fuels. After the stoi chiometric analysis the heat-emission characteristics were determined on two Combustion Equipments. The results of carried out elemental and stoichiometric analyses indicate higher values of nitrogen, sulphur and chlorine concentration in herbaceous biomass from agriculture compared to the analyzed wood mass. The selection of Combustion Equipment is particularly influenced by increased contents of sulphur and chlorine (corrosive behaviour). The net calorific value of the analyzed samples taken from the wood mass is higher than of samples taken from the herbaceous biomass. The net calorific value of fuels from herbaceous biomass is reduced due to a higher content of ashes in the fuel. The results of thermal-emission analyses show higher values of nitrogen oxides, sulphur and chlorine concentrations in the her baceous biomass compared to the analyzed wood mass. The emission concentrations of carbon monoxide for wood fuels and herbaceous biomass also depend on the type of Combustion Equipment and setting of Combustion air volume. The increased emissions of hydrogen chloride generated by various Combustion Equipments are primarily caused by the volume of Combustion air and the amount of chlorine in the fuel itself. The higher the volume of Combustion air brought into the Combustion chamber is, the higher the emissions of hydrogen chloride are. Based on the analyses we can also draw a conclusion that the spaces of Combustion Equipment during Combustion should be most burdened with the herbaceous biomass.

  • Heat-emission analysis of small Combustion Equipments for biomass
    Research in Agricultural Engineering, 2011
    Co-Authors: J. Malaťák, L. Passian
    Abstract:

    The article addresses the urgent questions regarding the use of biomass as a fuel for Combustion Equipment of the heat output up to 25 kW. The article is based on the determined elemental analyses of six samples of fuel taken both from the wood mass and herbaceous biomass. These samples underwent the stoichiometric analysis of fuels. After the stoichiometric analysis the heat-emission characteristics were determined on two Combustion Equipments. The results of carried out elemental and stoichiometric analyses indicate higher values of nitrogen, sulphur and chlorine concentration in herbaceous biomass from agriculture compared to the analyzed wood mass. The selection of Combustion Equipment is particularly influenced by increased contents of sulphur and chlorine (corrosive behaviour). The net calorific value of the analyzed samples taken from the wood mass is higher than of samples taken from the herbaceous biomass. The net calorific value of fuels from herbaceous biomass is reduced due to a higher content of ashes in the fuel. The results of thermal-emission analyses show higher values of nitrogen oxides, sulphur and chlorine concentrations in the herbaceous biomass compared to the analyzed wood mass. The emission concentrations of carbon monoxide for wood fuels and herbaceous biomass also depend on the type of Combustion Equipment and setting of Combustion air volume. The increased emissions of hydrogen chloride generated by various Combustion Equipments are primarily caused by the volume of Combustion air and the amount of chlorine in the fuel itself. The higher the volume of Combustion air brought into the Combustion chamber is, the higher the emissions of hydrogen chloride are. Based on the analyses we can also draw a conclusion that the spaces of Combustion Equipment during Combustion should be most burdened with the herbaceous biomass.

L. Passian - One of the best experts on this subject based on the ideXlab platform.

  • Heat-emission analysis of small Combustion Equipments for biomass
    Research in Agricultural Engineering, 2018
    Co-Authors: J. Malaťák, L. Passian
    Abstract:

    Malaťak J., Passian L. , 2011. Heat-emission analysis of small Combustion Equipments for biomass . Res. Agr. Eng., 57: 37–50. The article addresses the urgent questions regarding the use of biomass as a fuel for Combustion Equipment of the heat output up to 25 kW. The article is based on the determined elemental analyses of six samples of fuel taken both from the wood mass and herbaceous biomass. These samples underwent the stoichiometric analysis of fuels. After the stoi chiometric analysis the heat-emission characteristics were determined on two Combustion Equipments. The results of carried out elemental and stoichiometric analyses indicate higher values of nitrogen, sulphur and chlorine concentration in herbaceous biomass from agriculture compared to the analyzed wood mass. The selection of Combustion Equipment is particularly influenced by increased contents of sulphur and chlorine (corrosive behaviour). The net calorific value of the analyzed samples taken from the wood mass is higher than of samples taken from the herbaceous biomass. The net calorific value of fuels from herbaceous biomass is reduced due to a higher content of ashes in the fuel. The results of thermal-emission analyses show higher values of nitrogen oxides, sulphur and chlorine concentrations in the her baceous biomass compared to the analyzed wood mass. The emission concentrations of carbon monoxide for wood fuels and herbaceous biomass also depend on the type of Combustion Equipment and setting of Combustion air volume. The increased emissions of hydrogen chloride generated by various Combustion Equipments are primarily caused by the volume of Combustion air and the amount of chlorine in the fuel itself. The higher the volume of Combustion air brought into the Combustion chamber is, the higher the emissions of hydrogen chloride are. Based on the analyses we can also draw a conclusion that the spaces of Combustion Equipment during Combustion should be most burdened with the herbaceous biomass.

  • Heat-emission analysis of small Combustion Equipments for biomass
    Research in Agricultural Engineering, 2011
    Co-Authors: J. Malaťák, L. Passian
    Abstract:

    The article addresses the urgent questions regarding the use of biomass as a fuel for Combustion Equipment of the heat output up to 25 kW. The article is based on the determined elemental analyses of six samples of fuel taken both from the wood mass and herbaceous biomass. These samples underwent the stoichiometric analysis of fuels. After the stoichiometric analysis the heat-emission characteristics were determined on two Combustion Equipments. The results of carried out elemental and stoichiometric analyses indicate higher values of nitrogen, sulphur and chlorine concentration in herbaceous biomass from agriculture compared to the analyzed wood mass. The selection of Combustion Equipment is particularly influenced by increased contents of sulphur and chlorine (corrosive behaviour). The net calorific value of the analyzed samples taken from the wood mass is higher than of samples taken from the herbaceous biomass. The net calorific value of fuels from herbaceous biomass is reduced due to a higher content of ashes in the fuel. The results of thermal-emission analyses show higher values of nitrogen oxides, sulphur and chlorine concentrations in the herbaceous biomass compared to the analyzed wood mass. The emission concentrations of carbon monoxide for wood fuels and herbaceous biomass also depend on the type of Combustion Equipment and setting of Combustion air volume. The increased emissions of hydrogen chloride generated by various Combustion Equipments are primarily caused by the volume of Combustion air and the amount of chlorine in the fuel itself. The higher the volume of Combustion air brought into the Combustion chamber is, the higher the emissions of hydrogen chloride are. Based on the analyses we can also draw a conclusion that the spaces of Combustion Equipment during Combustion should be most burdened with the herbaceous biomass.