A Method for Combustion Calculation Based on Proximate Analysis and Net Calorific Value of Coal

Abstract:

For the combustion calculation of coal fired boiler, a new concept of oxygen consumption for combustible material was proposed which was different from the traditional oxygen consumption for elements. A mathematical model was developed for the combustion calculation. The calculation formulas of theoretical air and flue gas volume were established through reasonable hypothesis and simplification, which were based on proximate analysis and net calorific value of coal. In contrast to the results of the elemental analysis for the 15 different kinds of coals which are typical in China, the average relative error of formulas is lower than 2%, the biggest relative error is 7.11%, which can be used for the control over boiler operation, testing and debugging, and calculation of heat transfer.

• Periodical: Advanced Materials Research (Volumes 1092-1093)
• Pages: 479-482
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1092-1093.479
• Online since: March 2015
• Authors: Bao Kui Chen*, Feng Zhong Sun
• Keywords: Flue Gas Volume, Net Calorific Value, Proximate Analysis of Coal, Theoretical Air Volume, Ultimate Analysis of Coal

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