| Related citation: | Guo-Wei Liu,Dao-Zhi Qu,Peng Dong,Ru-Shan Bie.Experimental Study on Combustion Characteristics of Pulverized Coal under Enriched-oxygen Condition by Entrained Flow Reactor[J].Journal of Harbin Institute Of Technology(New Series),2013,20(1):46-51.DOI:10.11916/j.issn.1005-9113.2013.01.009. |
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| Author Name | Affiliation | | Guo-Wei Liu | School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China | | Dao-Zhi Qu | School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China | | Peng Dong | School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China | | Ru-Shan Bie | School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: |
| Four different pulverized coals have been used to study the effects of oxygen concentration on combustion characteristics under different enriched-oxygen conditions by entrained flow reactor experiments. The results show that: with the increase of oxygen concentration, the ignition temperature of four coals greatly decreases and the low volatile coals decrease faster; with the increase of oxygen concentration, the ignition mode of pulverized coal has an obviously transformation from homogeneous ignition to heterogeneous ignition, and the corresponding oxygen concentrations are about 40％ and 50％-60％ respectively for bituminous coal and lignite, and both about 30％ for lean coal and anthracite; with the increase of oxygen concentration, the optimal pulverized coal concentrations of bituminous coal and lignite increase firstly and then decrease, but for lean coal and anthracite, the optimal pulverized coal concentrations decrease slowly with the increase of oxygen concentration. |
| Key words: enriched-oxygen condition combustion characteristics entrained flow reactor ignition mode |
| DOI：10.11916/j.issn.1005-9113.2013.01.009 |
| Clc Number:TK227.7 |
| Fund: |
