摘要
叙述了一种比较严格的用于焦化炉设计的方法。采用区域法计算辐射传热，系统被分为若干个表面区和气体区，焦化炉的温度分布通过联立求解每一区的能量平衡式而得。直接交换面积是区域法计算辐射传热的基础数据。Ｈｏｔｅｌ和Ｃｏｈｅｎ提出的直接交换面积限于立方体和正方形，本文给出的在立式炉中任意两区之间的直接交换面积公式可适用于任何大小的梯形表面与空间。
A rigorous method for designing delayed coking furnace is proposed in this paper.Based on Hottels idea,the zone method is adopted for calculating radiative heat transfer.The whole system is divided into surface zones and gas zones.The temperature profiles in a furnace are thus obtained by solving a series of simultaneous energy balance equations in each zone.The direct exchanging area is essential for zone method to calculate radiative heat transfer.The direct exchanging area originally developed by Hottel and Cohen was limited to oubes and squares.In this paper,the derivation of the direct exchanging area equations are extented between any two zones in the vertical furnace.These equations are adaptable to any ladder shaped surface or space of different sizes.
出处
《石油学报（石油加工）》
EI
CAS
CSCD
北大核心
1997年第1期82-87,共6页
Acta Petrolei Sinica(Petroleum Processing Section)
基金
中国石油化工总公司资助
关键词
直接交换面积
辐射传热
延迟焦化炉
渣油
direct exchanging area
radiative heat transfer
mathematical simulation
delayed coking furnace
