摘要
Coal remains a cornerstone of China's energy landscape,significantly contributing to primary energy production and consumption.This study investigates the combustion characteristics of coal particles using a discrete modeling approach to simulate the combustion behavior of single particles.The research reveals that larger particle sizes increase heat and mass transfer resistance,prolonging combustion duration,while higher ambient temperatures enhance convective heat transfer,accelerating combustion reactions.Additionally,the spatial distribution of inert cohesive beads significantly affects gas diffusion,with certain arrangements hindering gas release.The model is validated against current literature,demonstrating its capability to predict carbon conversion rates and combustion dynamics.These findings provide valuable insights into coal combustion mechanisms,offering a foundation for optimizing combustion processes and improving energy efficiency while addressing environmental concerns.
基金
funded by the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant No.XDA29020401)
the National Natural Science Foundation of China(Grant Nos.22373104,22373105 and T2394501)
Additionally,it receives support from IPE Project for Frontier Basic Research(Grant No.QYJC-2023-04)
the Open Research Fund of the State Key Laboratory of Mesoscience and Engineering(Grants Nos.MESO-23-E01 and MESO-23-A01).
