INFLUENCE OF SAMPLE TEMPERATURE ON DRYING OF INDIVIDUAL POROUS SPHERES

摘要：

Heat and mass transport within a porous sphere during drying is here modeled and simulations of the surface evaporation period are carried out with aim to investigate the influence of the initial temperature on the drying time.A three dimensional spherical domain is formed and governing equations are set up for the flow past it.The local heat and mass transfer at the surface is determined from simulations of the surrounding fluid flow with aid of Computational Fluid Dynamics.For the studied conditions, the results show that increasing the initial temperature will decrease the drying time in a rather linear manner.There is also a distinct reduction in drying time if the humidity of the surrounding air is lowered.Increasing the initial temperature could thus be an effective way to reduce problems due to condensation and to decrease the drying time.

关键词： Drying Porous media Iron ore pellets CFD Modelling

作者: Anna-Lena Ljung T.Staffan Lundstr(o)m

作者单位: Division of fluid and experimental mechanics,Lule?University of Technology,SE-971 87 Division of fluid and experimental mechanics,Lule(a) University of Technology,SE-971 87

会议类型: 国际会议

会议名称: The 7th Asia-Pacific Drying Conference(第七届亚太地区干燥会议 ADC2011)

会议地点: 天津

会议语种:英文

页码: 1-6

在线出版日期: 2011-09-18（万方平台首次上网日期，不代表论文的发表时间）