The Proceedings of the International Conference on Power Engineering (ICOPE)
Online ISSN : 2424-2942
2003.2
Conference information
E212 INFLUENCE OF TWO-STAGE AIR INJECTION CONDITIONS ON NOx AND UNBURNED CARBON OF SUB-BITUMINOUS COAL COMBUSTION
M. IkedaH. MakinoH. MorinagaK. Higashiyama
Author information
CONFERENCE PROCEEDINGS FREE ACCESS

Pages _2-403_-_2-408_

Details
Abstract
Because of large recoverable reserves, sub-bituminous coal is an important energy resources. The disadvantage of sub-bituminous coal is that it contains more than 20% moisture. This makes ignition less efficient. And combustion flame became diffused. Both emissions of NOx and unburned carbon in fly ash become high. We have already shown that these emissions can be reduced by adjusting the air injection conditions from the burner to better suit sub-bituminous coal combustion. However, the reduction is insufficient compared with bituminous coal combustion. In this investigation, influence of two-stage air injection conditions on NOx and unburned carbon concentration in fly ash was studied and the optimum air injection conditions necessary in order to reduce those emissions were clarified.
Content from these authors
© 2003 The Japan Society of Mechanical Engineers
Previous article Next article
feedback
Top