کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
237792 465725 2010 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Three-dimensional CFD model of the temperature field for a pilot-plant tubular loop polymerization reactor
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Three-dimensional CFD model of the temperature field for a pilot-plant tubular loop polymerization reactor
چکیده انگلیسی

A three-dimensional (3D) computational fluid dynamics (CFD) model, using an Eulerian–Eulerian two-fluid model which incorporates the kinetic theory of granular flow, the energy balance and heat transfer equations, was developed to describe the steady-state liquid–solid two-phase flow in a loop propylene polymerization reactor composing of loop and axial flow pump. The entire temperature field in the reactor was calculated by the model. The predicted pressure gradient data were found to agree well with the classical calculated data. Furthermore, the model was used to investigate the influences of the circulation flow velocity, the slurry concentration, the solid particle size and the cool water temperature on the temperature field in the reactor. The simulation results showed that the whole loop can be divided into four sections. In addition, the simulation results also showed that the continuous stirred-tank reactor (CSTR) assumption is invalid for the entire field in the loop reactor.

Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Powder Technology - Volume 203, Issue 3, 25 November 2010, Pages 574–590
نویسندگان
, , , ,