Publication Date:
2019
Description:
〈h3〉Abstract〈/h3〉
〈p〉This paper describes the radiative energy flux characteristics of fixed-bed oxy-coal combustion for the purpose of guiding the quality-splitting conversion of combustion energy. An experiment was performed in a tube furnace at a temperature range of 800–1200 °C in O〈sub〉2〈/sub〉/N〈sub〉2〈/sub〉 and O〈sub〉2〈/sub〉/CO〈sub〉2〈/sub〉 atmospheres, and the radiative intensity was measured. It was found that an increase in oxygen concentration and temperature could increase the radiative intensity more than 1.5 to 2 fold during combustion, and the radiative energy flux was higher for semi-coke than coal by about 16%–27%. The radiative energy results could be described by a semi-empirical model and an artificial neural network (ANN) model. The results showed that the errors of the ANN were less than 0.01%, and demonstrated the superiority of the ANN. This study provides guidance for subsequent research on quality-splitting conversion of combustion energy.〈/p〉
Print ISSN:
1673-565X
Electronic ISSN:
1862-1775
Topics:
Natural Sciences in General
