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A mathematic model with total differential equations of combustion in thermobalance

  • Na Li
  • , Ruwei Liu
  • , Qulan Zhou
  • , Tongmo Xu
  • , Shi'en Hui
  • Xi'an Jiaotong University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The combustion process of pulverized coal in thermobalance is simplified in the paper. And total differential equations based on conservation of mass, energy and species law are obtained. Then the combustion process in thermobalance is simulated by numerical method. The results of numerical simulation show that the anthracite combustion procedures of the volatile and fixed carbon are independent of each other. The combustion rate of bituminite is obviously higher than that of anthracite and lean coal. The volatile helps the ignition of the fixed carbon and causes the combustion of fixed carbon to be earlier. The peak values of rate of mass loss of different coals are the same. Simulation results agree with experimental results, and the results demonstrate the numerical method of the model can be used to quantificationally predict the process of combustion in thermobalance.

Original languageEnglish
Title of host publicationChallenges on Power Engineering and Environment - Proceedings of the International Conference on Power Engineering 2007, ICOPE 2007
EditorsFei Wang, Kefa Cen, Yong Chi
PublisherZhejiang Univ Press
ISBN (Electronic)9787308055956
StatePublished - 2007
EventInternational Conference on Power Engineering 2007: Challenges on Power Engineering and Environment, ICOPE 2007 - Hangzhou, China
Duration: 23 Oct 200727 Oct 2007

Publication series

NameChallenges on Power Engineering and Environment - Proceedings of the International Conference on Power Engineering 2007, ICOPE 2007

Conference

ConferenceInternational Conference on Power Engineering 2007: Challenges on Power Engineering and Environment, ICOPE 2007
Country/TerritoryChina
CityHangzhou
Period23/10/0727/10/07

Keywords

  • Combustion
  • Mathematic model
  • Numerical simulation
  • Thermobalance

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