A Pulverized Coal-Fired Boiler Optimized for Oxyfuel Combustion Technology
This paper presents the results of a study on modifying a pulverized coal-fired steam boiler in a 250 MWe power plant for oxygen combustion conditions. The entry point of the study is a boiler that was designed for standard air combustion. It has been proven that simply substituting air by oxygen as...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
CTU Central Library
2012-01-01
|
| Series: | Acta Polytechnica |
| Subjects: | |
| Online Access: | https://ojs.cvut.cz/ojs/index.php/ap/article/view/1588 |
| _version_ | 1828412051399114752 |
|---|---|
| author | Tomáš Dlouhý Tomáš Dupal Jan Dlouhý |
| author_facet | Tomáš Dlouhý Tomáš Dupal Jan Dlouhý |
| author_sort | Tomáš Dlouhý |
| collection | DOAJ |
| description | This paper presents the results of a study on modifying a pulverized coal-fired steam boiler in a 250 MWe power plant for oxygen combustion conditions. The entry point of the study is a boiler that was designed for standard air combustion. It has been proven that simply substituting air by oxygen as an oxidizer is not sufficient for maintaining a satisfactory operating mode, not even with flue gas recycling. Boiler design optimization aggregating modifications to the boiler’s dimensions, heating surfaces and recycled flue gas flow rate, and specification of a flue gas recycling extraction point is therefore necessary in order to achieve suitable conditions for oxygen combustion. Attention is given to reducing boiler leakage, to which external pre-combustion coal drying makes a major contribution. The optimization is carried out with regard to an overall power plant conception for which a decrease in efficiency due to CO2 separation is formulated. |
| first_indexed | 2024-12-10T12:42:07Z |
| format | Article |
| id | doaj.art-3513dbe4ee5946a5a7527b1197d698a7 |
| institution | Directory Open Access Journal |
| issn | 1210-2709 1805-2363 |
| language | English |
| last_indexed | 2024-12-10T12:42:07Z |
| publishDate | 2012-01-01 |
| publisher | CTU Central Library |
| record_format | Article |
| series | Acta Polytechnica |
| spelling | doaj.art-3513dbe4ee5946a5a7527b1197d698a72022-12-22T01:48:30ZengCTU Central LibraryActa Polytechnica1210-27091805-23632012-01-015241588A Pulverized Coal-Fired Boiler Optimized for Oxyfuel Combustion TechnologyTomáš DlouhýTomáš DupalJan DlouhýThis paper presents the results of a study on modifying a pulverized coal-fired steam boiler in a 250 MWe power plant for oxygen combustion conditions. The entry point of the study is a boiler that was designed for standard air combustion. It has been proven that simply substituting air by oxygen as an oxidizer is not sufficient for maintaining a satisfactory operating mode, not even with flue gas recycling. Boiler design optimization aggregating modifications to the boiler’s dimensions, heating surfaces and recycled flue gas flow rate, and specification of a flue gas recycling extraction point is therefore necessary in order to achieve suitable conditions for oxygen combustion. Attention is given to reducing boiler leakage, to which external pre-combustion coal drying makes a major contribution. The optimization is carried out with regard to an overall power plant conception for which a decrease in efficiency due to CO2 separation is formulated.https://ojs.cvut.cz/ojs/index.php/ap/article/view/1588CCSoxyfueloxyfuel boiler |
| spellingShingle | Tomáš Dlouhý Tomáš Dupal Jan Dlouhý A Pulverized Coal-Fired Boiler Optimized for Oxyfuel Combustion Technology Acta Polytechnica CCS oxyfuel oxyfuel boiler |
| title | A Pulverized Coal-Fired Boiler Optimized for Oxyfuel Combustion Technology |
| title_full | A Pulverized Coal-Fired Boiler Optimized for Oxyfuel Combustion Technology |
| title_fullStr | A Pulverized Coal-Fired Boiler Optimized for Oxyfuel Combustion Technology |
| title_full_unstemmed | A Pulverized Coal-Fired Boiler Optimized for Oxyfuel Combustion Technology |
| title_short | A Pulverized Coal-Fired Boiler Optimized for Oxyfuel Combustion Technology |
| title_sort | pulverized coal fired boiler optimized for oxyfuel combustion technology |
| topic | CCS oxyfuel oxyfuel boiler |
| url | https://ojs.cvut.cz/ojs/index.php/ap/article/view/1588 |
| work_keys_str_mv | AT tomasdlouhy apulverizedcoalfiredboileroptimizedforoxyfuelcombustiontechnology AT tomasdupal apulverizedcoalfiredboileroptimizedforoxyfuelcombustiontechnology AT jandlouhy apulverizedcoalfiredboileroptimizedforoxyfuelcombustiontechnology AT tomasdlouhy pulverizedcoalfiredboileroptimizedforoxyfuelcombustiontechnology AT tomasdupal pulverizedcoalfiredboileroptimizedforoxyfuelcombustiontechnology AT jandlouhy pulverizedcoalfiredboileroptimizedforoxyfuelcombustiontechnology |