Numerical Study of Biomass Grate Boiler with Coupled Time-Dependent Fuel Bed Model and Computational Fluid Dynamics Based Freeboard Model

• Published in: Energy & fuels Vol. 32; no. 9; pp. 9493 - 9505
• Main Authors: Zhou, Anqi, Xu, Hongpeng, Yang, Wenming, Tu, Yaojie, Xu, Mingchen, Yu, Wenbin, Boon, Siah Keng, Subbaiah, Prabakaran
• Format: Journal Article
• Language: English
• Published: American Chemical Society 20.09.2018
• Subjects: air; biomass; boilers; bottom ash; combustion; combustion efficiency; fluid mechanics; fuel bed; fuels; simulation models; steam; temperature

In this paper, a coupled numerical model is developed to provide an advanced simulation for industrial scale grate boilers. The detailed process of biomass conversion in the grate bed is captured using the developed one-dimensional fuel bed model, taking into consideration the separately controlled...