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Article Navigation> JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY> 2009> 18(3): 293-297
XIANG Chang-hu, ZHANG Wei-zheng, YUAN Yan-peng. A New Method for Computing Radiation Heat Flow of In-Cylinder Soot of Diesel Engines[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2009, 18(3): 293-297.
Citation: XIANG Chang-hu, ZHANG Wei-zheng, YUAN Yan-peng. A New Method for Computing Radiation Heat Flow of In-Cylinder Soot of Diesel Engines[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2009, 18(3): 293-297.
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A New Method for Computing Radiation Heat Flow of In-Cylinder Soot of Diesel Engines

  • School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China

  • Received Date:2008-06-27
    Abstract
  • A concise formula for computing radiation heat flow of in-cylinder soot is presented,based on the assumptions that in-cylinder heat transfer of diesel engines is a quasi-equilibrium process and in-cylinder soot particles are spherical. That in this formula there consist neither constants needing adjustments nor variables related to engine types or operating conditions makes it universal and easy to use. Also it can be seen from the formula that radiation heat transfer is proportional to the quotient of in-cylinder soot mass over the average radius of primary particles. Besides, with the help of different algorithms it can be used for predicting cylinders' global as well as local radiation heat flows. As a demonstrative application on its global facet, a three-dimension simulation study about the soot-radiation-related heat flow in the combustion chamber of a diesel engine is carried out. Results show that the range of the soot-radiation-related heat flow computed by this formula agrees well with other researcher's earlier theoretic reasoning and experimental measurements.
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    • References (16)
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