Burned Zone - Explore the Science & Experts | ideXlab

Scan Science and Technology

Contact Leading Edge Experts & Companies

Burned Zone

The Experts below are selected from a list of 171 Experts worldwide ranked by ideXlab platform

Uwe Kiencke – 1st expert on this subject based on the ideXlab platform

  • Engine modeling and exhaust gas estimation for DI-diesel engines
    Proceedings of the 2001 American Control Conference. (Cat. No.01CH37148), 2001
    Co-Authors: Dara Daniel Torkzadeh, Wolfgang Längst, Uwe Kiencke

    Abstract:

    Engine models are a basis for better controlling combustion process and the exhaust emissions resulting from it. Currently the zero- and quasi-dimensional models are mostly used. These types of model are also addressed in this article. Zero-dimensional models are computationally efficient but they are not able to describe fuel efficiency or the generation of pollutants. It is therefore necessary to enhance combustion process models with phenomenological fuel spray and vaporization models, with a local resolution of at least two Zones. The chemical model for calculating emissions is based on the two-Zone model. The amount of mass, which is transferred from the unBurned to the Burned Zone, is the input for a chemical model based on the equilibrium for the OCH-system (oxygen/carbon/hydrogen). The nitrogen-oxide emissions are calculated by using the advanced Zeldovich-mechanism which uses the reaction-kinetic approach rather than the less accurate chemical equilibrium assumption. The NO/sub x/-emissions (nitrogen-oxides) can be influenced by changing the exhaust-gas recirculation (EGR) rate.

  • Model Based Exhaust Gas Estimation of a Common Rail Diesel Engine
    IFAC Proceedings Volumes, 2001
    Co-Authors: Dara Daniel Torkzadeh, Wolfgang Längst, Uwe Kiencke

    Abstract:

    Abstract In order to improve fuel economy and the emissions of internal combustion engines, it is necessary to model the combustion process as a basis for control. In this paper, behavioral models are adopted as a compromise between accuracy of description and model complexity. The fuel injection and vaporization process is resolved into three Zones: fluid droplets, vaporized and combusted fuel. The combustion chamber is divided into areas of Burned and unBurned gases, separated by the flame front. The chemical model for calculating emissions is based on the two-Zone model. The amount of mass, which is transferred from the unBurned to the Burned Zone, is the input for a chemical model based on the equilibrium for the OCH -system (oxygen/carbon/hydrogen). The result is the total quantity of masses in the Burned Zone. The nitrogen-oxide emissions are calculated by using the advanced Zeldovichmechanism which uses the reaction-kinetic approach rather than the less accurate chemical equilibrium assumption. The NO x -Emissions (nitrogen-oxides) can be influenced by changing the exhaust-gas recirculation

Lin Tian – 2nd expert on this subject based on the ideXlab platform

  • study on mgo mgo al2o3 bricks used Burned Zone of cement rotary kiln
    Advanced Materials Research, 2011
    Co-Authors: Guo Hua Li, Shu Jiang Chen, Lin Tian

    Abstract:

    The effects of iron scales and high iron magnesite as well as the content on microstructure and properties of MgO-MgO·Al2O3 bricks used Burned Zone of large cement rotary kilns have been studied. It focuses on testing coating adherence in this paper. The results show that apparent porosity of adding iron scales sample is higher than the sample by adding high iron magnesite, which is increased with increasing of iron scales content; Compression strength is decreased with increasing of iron scales content, The high iron magnesia cause the irregular change of the compression strength, compression strength was maximum when high iron magnesite content of additive was 6%; Coating adherence was optimum adding 3% high iron magnesite, adding 3% iron scales is followed, any other is bad. Over all, the sample adding 3% high iron magnesite is more suitable for large dry method cement kiln Burned Zone

  • Study on MgO-MgO•Al2O3 Bricks Used Burned Zone of Cement Rotary Kiln
    Advanced Materials Research, 2011
    Co-Authors: Guo Hua Li, Shu Jiang Chen, Lin Tian

    Abstract:

    The effects of iron scales and high iron magnesite as well as the content on microstructure and properties of MgO-MgO·Al2O3 bricks used Burned Zone of large cement rotary kilns have been studied. It focuses on testing coating adherence in this paper. The results show that apparent porosity of adding iron scales sample is higher than the sample by adding high iron magnesite, which is increased with increasing of iron scales content; Compression strength is decreased with increasing of iron scales content, The high iron magnesia cause the irregular change of the compression strength, compression strength was maximum when high iron magnesite content of additive was 6%; Coating adherence was optimum adding 3% high iron magnesite, adding 3% iron scales is followed, any other is bad. Over all, the sample adding 3% high iron magnesite is more suitable for large dry method cement kiln Burned Zone

Li Guohu – 3rd expert on this subject based on the ideXlab platform

  • Study on MgO-MgO·Al_2O_3 Bricks Used Burned Zone of Cement Kiln
    Materials review, 2014
    Co-Authors: Li Guohu

    Abstract:

    The effects of iron scales and high iron magnesia as well as the content on microstructure and properties of MgO-MgO·Al2O3bricks used Burned Zone of large cement rotary kilns were studied.It focuses on testing coating adherence.The results show that the porosity of adding iron scales sample is higher than the sample by adding high iron magnesia,which is increased with increasing of iron scales content;cold crushing strength reduced with content of iron scales.The high iron magnesia cause the irregular change of cold crushing strength,cold crushing strength was maximum when high iron magnesia content was 6%;coating adherence and resistance to cement clinker permeation was optimum when adding 12% high iron magnesia.

  • study on mgo mgo al_2o_3 bricks used Burned Zone of cement kiln
    Materials review, 2014
    Co-Authors: Li Guohu

    Abstract:

    The effects of iron scales and high iron magnesia as well as the content on microstructure and properties of MgO-MgO·Al2O3bricks used Burned Zone of large cement rotary kilns were studied.It focuses on testing coating adherence.The results show that the porosity of adding iron scales sample is higher than the sample by adding high iron magnesia,which is increased with increasing of iron scales content;cold crushing strength reduced with content of iron scales.The high iron magnesia cause the irregular change of cold crushing strength,cold crushing strength was maximum when high iron magnesia content was 6%;coating adherence and resistance to cement clinker permeation was optimum when adding 12% high iron magnesia.