摘要
设计并安装了一套包括冷却壁在内的冷却系统,用于模拟高炉冷却系统换热情况。在给定外界温度的情况下,对流换热系数随着颗粒浓度的增加而增加,同时流体的流速对纳米流体的换热影响也呈现了相类似的趋势,然而液体温度的升高却对其换热能力的提高起到了负面的影响。
In this work,a new experimental system including a cooling stave was developed to simu-late the industrial process.The convective heat transfer coefficients of nanofluids were measured while they＇re flowing through the cooling stave.Given the temperature of hot surface,the convective heat transfer coefficient increases with the concentration and the effect of particle concentration seems to be similar in various velocity.However,the convective heat transfer coefficient enhancement decreases with increasing temperature on the hot surface of the stave.
出处
《冶金能源》
2010年第4期24-27,共4页
Energy For Metallurgical Industry
关键词
TIO2
纳米流体
对流换热
冷却壁
温度
aqueous TiO2 nanofluids convective heat transfer cooling stave temperature
