标题：Numerical simulation of supercritical water oxidation with a transpiring wall reactor
作者：Zhang, Fengming; Chen, Shouyan; Wang, Zhiqiang; Ma, Chunyuan; Chen, Guifang; Zhang, Jiaming
作者机构：[Zhang, Fengming; Chen, Shouyan; Wang, Zhiqiang; Ma, Chunyuan; Chen, Guifang; Zhang, Jiaming] Shandong Univ, Sch Energy & Power Engn, Natl Engn Lab Co 更多
会议名称：4th International Conference on Bioinformatics and Biomedical Engineering (iCBBE)
会议日期：JUN 18-20, 2010
来源：2010 4TH INTERNATIONAL CONFERENCE ON BIOINFORMATICS AND BIOMEDICAL ENGINEERING (ICBBE 2010)
关键词：supercritical water oxidation; transpiring wall reactor; model; Fluent
摘要：Transpiring wall reactor is a promising engineering solution to corrosion and salt precipitation for the technology of supercritical water oxidation. Characteristics of flow conditions and species concentrations in the reactor and around the transpiring wall are hardly accessible to measurements. So a computational fluid dynamic model of the transpiring wall reactor was developed. The influence of different operating parameters on the temperature distribution and species distribution, especially the temperature near the transpiring wall, were investigated. Feed mass flow, feed flow temperature and ethanol concentration has a strong influence on the temperature of reactor. Higher feed mass flow, feed flow temperature and ethanol concentration are beneficial to the destruction of ethanol, but it reduces the protection of upper transpiring wall. The optimum feed flow for the reactor is between 0.002 and 0.003kg/s at 380 degrees C Transpiration intensity has minimal influence on the temperature, but lower transpiring flow temperature is beneficial to protection of the porous wall. Upper branch transpiring water of 300 degrees C provides a subcritical protective film to prevent corrosion and salt precipitation.