DOI: 10.1615/ICHMT.2015.THMT-15
ISBN Print: 978-1-56700-427-4
ISBN CD: 978-1-56700-428-8
Challenges and opportunities in simulation of coal and biomass combustion in power plants
SINOPSIS
Coal power will continue to be a cornerstone of the world energy system for the foreseeable future. However, additional measures are needed to minimize CO2 emissions from the power generation sector by employing new technologies including clean coal, biomass co-firing at a higher rate and carbon capture and storage (CCS). This paper presents a review of the opportunities and challenges surrounding the development of computational fluid dynamics (CFD) models for coal/biomass combustion, and discusses the historical and recent advances in specific areas relating to the modelling of char oxidation, radiative heat transfer, pollutant formation, ash problems, and the impact of turbulence, combustion kinetics and transient calculations. This review also provides a coherent near-term and long-term specific CFD sub-models development strategy and a discussion on the integration of CFD into power plant process modelling for efficient and more accurate simulations of heat transfer and pollutant emissions for a safe, flexible and efficient operation of future power generation systems.