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| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Zha, Qiongliang Chen, Kai Zhang, Jianwen Li, Jiangtao Wang, Chang’an Che, Defu |
| Copyright Year | 2016 |
| Abstract | The refractory belt installed in primary combustion zone provides simplest and most effective solution to suppress ignition delay and enhance combustion stability for low volatile anthracite and lean coal. The fouling deposition generally formed on radiative refractory lined wall of the boiler due to a high surface temperature. The growth of deposition thickness is mainly dependent on the parcile impact on the surface of water wall. A particle capture submodel was used to determine whether a particle was captured to form deposition or not when it reached the furnace wall, and the particle capture criterion was based on the particle’s viscosity and the temperature of the furnace wall. A reduced fouling deposition model was implemented in a three dimensional simulation of a tangentially fired boiler. The numerical investigation was conducted to assess the performance of different layouts of refractory belt. Furnace temperature, surface temperature of refractory belt, and deposition distributions on the furnace wall should be taken into account when layouts of refractory belt are optimized. Based on this, three layouts of refractory belt were proposed for tangentially fired boilers. A numerical investigation was conducted to assess the performance of different layouts of refractory belt and the results showed that the temperature in furnace was increased, and the ignition and combustion processes were stabilized when refractory belts were installed. The reasonable arrangement of refractory belt could reduce the possibility of fouling deposition in furnace. |
| Sponsorship | Power Division Advanced Energy Systems Division Solar Energy Division Nuclear Engineering Division |
| File Format | |
| ISBN | 9780791850213 |
| DOI | 10.1115/POWER2016-59570 |
| Volume Number | ASME 2016 Power Conference |
| Conference Proceedings | ASME 2016 Power Conference collocated with the ASME 2016 10th International Conference on Energy Sustainability and the ASME 2016 14th International Conference on Fuel Cell Science, Engineering and Technology |
| Language | English |
| Publisher Date | 2016-06-26 |
| Publisher Place | Charlotte, North Carolina, USA |
| Access Restriction | Subscribed |
| Subject Keyword | Viscosity Water Temperature Stability Ignition Boilers Combustion Furnaces Simulation Particulate matter Coal Belts Ignition delay |
| Content Type | Text |
| Resource Type | Article |
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