Investigation into ash related issues during co-combustion of coal and biomass: Development of a co-firing advisory tool
The co-firing technology of coal with biomass has been implemented to enhance the usage of biomass in power generation, thus reducing the release of greenhouse gas emissions. This study deals with the fireside issues, namely ash-related issues that arise during co-combustion of coal and biomass take...
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| Format: | Thesis |
| Language: | English |
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Curtin University
2007
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| Online Access: | http://hdl.handle.net/20.500.11937/1642 |
| _version_ | 1848743726214545408 |
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| author | Arun Kumar, Veena Doshi |
| author_facet | Arun Kumar, Veena Doshi |
| author_sort | Arun Kumar, Veena Doshi |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The co-firing technology of coal with biomass has been implemented to enhance the usage of biomass in power generation, thus reducing the release of greenhouse gas emissions. This study deals with the fireside issues, namely ash-related issues that arise during co-combustion of coal and biomass takes place. Ash release from biomass can lead to ash deposition problems such as fouling and slagging on surfacesof power generation boilers. The scope of this work includes the development of a conceptual model that predicts the ash release behaviour and chemical composition of inorganics in coal and biomass when combusted. An advanced analytical method was developed and introduced in this work to determine the speciation of biomass.The method known as pH extraction analysis was used to determine the inorganic speciation in three biomass samples, namely wood chips, wood bark and straw. The speciation of biomass and coal was used as an input to the model to predict the behaviour and release of ash. It was found that the main gas phases during the combustion of biomass are KCl, NaCl, K[subscript]2SO[subscript]4 and Na[subscript]2SO[subscript]4. Gas-to-particle formation calculations were carried out to determine the chemical composition of coal andbiomass when cooling takes place in the boiler. The results obtained in this work can be used in future work to determine the ash deposition of coal and biomass in boilers. |
| first_indexed | 2025-11-14T05:50:09Z |
| format | Thesis |
| id | curtin-20.500.11937-1642 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T05:50:09Z |
| publishDate | 2007 |
| publisher | Curtin University |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-16422017-02-20T06:38:09Z Investigation into ash related issues during co-combustion of coal and biomass: Development of a co-firing advisory tool Arun Kumar, Veena Doshi co-combustion of coal and biomass in boilers prediction of ash release behaviour ash related issues chemical composition of inorganics in coal The co-firing technology of coal with biomass has been implemented to enhance the usage of biomass in power generation, thus reducing the release of greenhouse gas emissions. This study deals with the fireside issues, namely ash-related issues that arise during co-combustion of coal and biomass takes place. Ash release from biomass can lead to ash deposition problems such as fouling and slagging on surfacesof power generation boilers. The scope of this work includes the development of a conceptual model that predicts the ash release behaviour and chemical composition of inorganics in coal and biomass when combusted. An advanced analytical method was developed and introduced in this work to determine the speciation of biomass.The method known as pH extraction analysis was used to determine the inorganic speciation in three biomass samples, namely wood chips, wood bark and straw. The speciation of biomass and coal was used as an input to the model to predict the behaviour and release of ash. It was found that the main gas phases during the combustion of biomass are KCl, NaCl, K[subscript]2SO[subscript]4 and Na[subscript]2SO[subscript]4. Gas-to-particle formation calculations were carried out to determine the chemical composition of coal andbiomass when cooling takes place in the boiler. The results obtained in this work can be used in future work to determine the ash deposition of coal and biomass in boilers. 2007 Thesis http://hdl.handle.net/20.500.11937/1642 en Curtin University fulltext |
| spellingShingle | co-combustion of coal and biomass in boilers prediction of ash release behaviour ash related issues chemical composition of inorganics in coal Arun Kumar, Veena Doshi Investigation into ash related issues during co-combustion of coal and biomass: Development of a co-firing advisory tool |
| title | Investigation into ash related issues during co-combustion of coal and biomass: Development of a co-firing advisory tool |
| title_full | Investigation into ash related issues during co-combustion of coal and biomass: Development of a co-firing advisory tool |
| title_fullStr | Investigation into ash related issues during co-combustion of coal and biomass: Development of a co-firing advisory tool |
| title_full_unstemmed | Investigation into ash related issues during co-combustion of coal and biomass: Development of a co-firing advisory tool |
| title_short | Investigation into ash related issues during co-combustion of coal and biomass: Development of a co-firing advisory tool |
| title_sort | investigation into ash related issues during co-combustion of coal and biomass: development of a co-firing advisory tool |
| topic | co-combustion of coal and biomass in boilers prediction of ash release behaviour ash related issues chemical composition of inorganics in coal |
| url | http://hdl.handle.net/20.500.11937/1642 |