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Co-combustion of rice husk pellets and moisturized rice husk in afluidized-bed combustor using fuel staging at a conventional air supply |
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| รหัสดีโอไอ | |
| Creator | 1. Pichet Ninduangdee 2. Vladimir I. Kuprianov |
| Title | Co-combustion of rice husk pellets and moisturized rice husk in afluidized-bed combustor using fuel staging at a conventional air supply |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2018 |
| Journal Title | Songklanakarin Journal of Science and Technology |
| Journal Vol. | 40 |
| Journal No. | 5 |
| Page no. | 1081-1089 |
| Keyword | fluidized bed, rice husk, co-combustion, fuel staging, NO reduction |
| URL Website | http://rdo.psu.ac.th/sjstweb/index.php |
| ISSN | 0125-3395 |
| Abstract | This paper presents an experimental study on co-combustion of two types of rice husk with substantially differentproperties in a fluidized-bed combustor using fuel staging for lowering NO emission. Rice husk pellets were burned as a base (orprimary) fuel, whereas moisturized rice husk was injected downstream from the primary combustion zone as a secondary fuel.The experiments were conducted at 200 kWth heat input to this reactor with a bottom air supply, while the energy fraction of thesecondary fuel in the total heat input ranged from 0 to 0.25, and excess air was within 20?80% for each co-firing option. Thestudy revealed significant effects of the operating parameters on combustion and emission performance of the combustor.Compared to burning of the base fuel, a nearly 40% NO emission reduction is achievable with fuel staging, while controlling theCO and CxHy emissions from the combustor to acceptable levels. However, fuel staging causes some deterioration in thecombustion efficiency. |
