(1.中南大學(xué) 冶金科學(xué)與工程學(xué)院， 長沙 410083；
2.中南大學(xué) 物熱系熱工設(shè)備仿真與優(yōu)化研究所， 長沙 410083)
摘 要: 根據(jù)傅里葉傳熱定律和基爾霍夫?qū)щ姸桑?建立了預(yù)焙陽極鋁電解槽陽極傳熱、 導(dǎo)電的數(shù)學(xué)模型。 用三維控制容積法推導(dǎo)了傳熱、導(dǎo)電的有限差分方程。 在合適的邊界條件假定下， 采用C語言編程對其進(jìn)行耦合數(shù)值求解， 以此確定陽極內(nèi)部的電位分布和溫度分布，并分析了陽極的熱平衡狀態(tài)。 通過模擬計(jì)算給出陽極和鋼爪尺寸對電、 熱場和熱平衡的影響， 以此指導(dǎo)設(shè)計(jì)出陽極電位降盡可能小和散熱量盡可能少的陽極和鋼爪尺寸。
關(guān)鍵字: 鋁電解槽； 預(yù)焙陽極； 數(shù)值仿真
（1. School of Metallurgical Science and Engineering，
Central South University， Changsha 410083， China；
2. Institute of Simulation and Optimization of Pyro installation，
Central South University， Changsha 410083， Chin）
Abstract:According to Fourier’s law and Kirchhoff’s law， a mathematical model of prebaked anode current and temperature fields of aluminum reduction cell was built. The finite difference equations was deduced using three dimensional control volume method.With reasonable assumption of boundary conditions， the equations were solved with C language programming， therefore， the anode couple current and temperature distribution and energy balance status were gained. The results provide foundations for seeking optimum anode and iron claw sizes which have minimum potential drop and minimum energy loss.
Key words: electrolysis cell； prebaked anode； numerical simulation
