文献类型：期刊文献

英文题名：Impact of Radiation Models in Coupled Simulations of Steam Cracking Furnaces and Reactors

作者：Hu, Guihua[1];Schietekat, Carl M.[2];Zhang, Yu[1,2];Qian, Feng[1];Heynderickx, Geraldine[2];Van Geem, Kevin M.[2];Marin, Guy B.[2]

机构：[1]E China Univ Sci & Technol, Key Lab Adv Control & Optimizat Chem Proc, Minist Educ, Shanghai 200237, Peoples R China;[2]Univ Ghent, Chem Technol Lab, B-9052 Ghent, Belgium

年份：2015

卷号：54

期号：9

起止页码：2453

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20151100639480);WOS:【SCI-EXPANDED(收录号:WOS:000351186900006)】；

基金：This work is supported by Major State Basic Research Development Program of China (2012CB720500), National Natural Science Foundation of China (Key Program: U1162202), National Science Fund for Outstanding Young Scholars (61222303), National Natural Science Foundation of China (21276078, 61174118), Shanghai Key Technologies R&D Program (12dz1125100) and Shanghai Leading Academic Discipline Project (B504). The financial support from the BOF Bilateral Scientific Cooperation (ECUST/LCT) and the Long Term Structural Methusalem Funding by the Flemish Government (No. BOF09/01M00409) and '111_ Project by the Chinese Government (No. B08021) are acknowledged. CMS acknowledges financial support from a doctoral fellowship from the Fund for Scientific Research Flanders (FWO).

语种：英文

外文关键词：Computational fluid dynamics - Cracks - One dimensional - Radiative transfer - Heat radiation - Steam cracking

摘要：As large floor-fired furnaces have many applications in refinery and (petro-) chemical units and about 80% of heat transfer in these furnaces is by radiation, the accurate description of radiative heat transfer is of the most importance for accurate design and optimization. However, the impact of using different radiation models in coupled furnace/reactor simulations has never been evaluated before. Therefore, coupled furnace/reactor simulations of an industrial naphtha cracking furnace with a 130 kt/a capacity have been conducted. Computational fluid dynamics simulations were performed for the furnace side, while the one-dimensional reactor model COILSIM1D was used for the reactor simulations. The Adiabatic, P-1, discrete ordinates model (DOM), and discrete transfer radiation model (DTRM) were evaluated for modeling the radiative heat transfer. The results with DOM and DTRM are very similar both on the furnace and the reactor sides. The flue gas temperature using DOM is higher than when using the P-1 radiation model, resulting in higher incident radiation. Comparing the simulated results of all radiation models to the industrial product yields and run lengths shows that DOM and DTRM outperform the others. As DOM has a broader application range than DTRM, and because the current implementation of DTRM in FLUENT/14.0 cannot be run in parallel yet, DOM is the recommended radiation model for run length simulations of steam cracking furnaces.