Optimization of Atmospheric Fluidized Bed Combustion Boiler by Computational Fluid Dynamics

Autor: Ramadhan Fajar, Gunawan Fergyanto E.
Jazyk: English<br />French
Rok vydání: 2023
Předmět:
Zdroj: E3S Web of Conferences, Vol 426, p 02074 (2023)
Druh dokumentu: article
ISSN: 2267-1242
20234260
DOI: 10.1051/e3sconf/202342602074
Popis: Viscose rayon is a natural fabric from regenerated cellulose derived from wood pulp, bamboo, or cotton linters. The viscose rayon industry relies on electricity to generate steam for textile production. This study aims to optimize the 45-ton-per-hour Atmospheric Fluidized Bed Combustion (AFBC) boiler. Its efficiency is 78.16%, lower than the industry benchmark of 85.78%. Boiler efficiency decreases as the flue gas temperature increases, reaching 220 degrees Celsius, indicating suboptimal coal fuel utilization for water heating. The study explores two controllable variables: coal calorific value and combustion air mass flow rate for optimum efficiency. ANSYS Fluent 2021, a Computational Fluid Dynamics (CFD) software, is used for analysis. Boiler efficiency is calculated using the indirect method following ASME PTC 4.0. The research shows that adjusting the combustion air mass flow rate and coal calorific value increases efficiency to 81.04%.
Databáze: Directory of Open Access Journals