A slit-less gas-solid vortex reactor (SL-RFBSG) has high heat and mass transfer capability, applicable in pharmaceutical and food processing industries, especially in food grain drying and preservation. Validating the numerical outcomes with experimental results of the SL-GSVR vortex chamber with a capacity of 500 g, the scale-up of this reactor is performed numerically to a solid capacity of 3000 g. In the present investigation, a three-dimensional computational fluid dynamics analysis of gas-solid hydrodynamics and heat transfer characteristics in SL-GSVR has been performed using the commercial software ANSYS FLUENT 14.5, applying an Eulerian-Eulerian approach for the gas-solid phase. As the SL-GSVR vortex chamber is developed without slits, it improves bed-uniformity and fluidization, along with the reduction in system cost and complexity. Comparing numerical outcomes with experimental results, the measured temperature difference, inventory, heat transfer coefficient in the radial direction and transverse directions are 0.24%, 7.72%, 14.8%, and 17.8%, respectively. The requirement of drying air in the SL-GSVR dryer is decreased by 18.6%, with an improvement in the product quality compared to the RFB reactor. Further, the solid loading capacity of the scaled-up SL-GSVR drying chamber has been increased to 3000 g.

无缝气固涡旋反应器（SL-RFBSG）具有高传热和传质能力，适用于制药和食品加工行业，尤其​​是食品谷物的干燥和保存。用容量为500 g的SL-GSVR涡流室的实验结果验证了数值结果，该反应器的规模放大进行了数值分析，得到了3000 g的固体容量。在本研究中，使用商业软件ANSYS FLUENT 14.5对SL-GSVR中的气固流体动力学和传热特性进行了三维计算流体动力学分析，对气固相采用了欧拉-欧拉方法。由于SL-GSVR涡流腔室不带缝隙，因此它改善了床的均匀性和流化性能，并降低了系统成本和复杂性。将数值结果与实验结果进行比较，测得的温度差，存量，径向和横向的传热系数分别为0.24％，7.72％，14.8％和17.8％。与RFB反应器相比，SL-GSVR干燥机中干燥空气的需求降低了18.6％，产品质量得到了改善。此外，按比例放大的SL-GSVR干燥室的固体装载量已增加至3000 g。