摘要
采用动态污垢热阻监测的方法,对MgO和CaCO_3组成的混合垢、SiO_2和CaCO_3组成的混合垢形成过程中流速、颗粒浓度、颗粒种类等参数变化的影响进行了实验研究,并通过实验考察低压电子装置在不同电流(0.2A,1.0A)下处理这两类混合垢时的阻垢性能。两种混合垢的污垢热阻与传热系数对比表明,低压电子装置对MgO和CaCO_3组成的混合垢具有明显的抗垢效果,而对SiO_2和CaCO_3组成的混合垢,却有不同效果。
The experimental study on the effect of parameter variations including cooling water velocity, particle concentration and particle species during the forming of the mixed scate（MgO and CaCO3 ） and the other one（SiO2 and CaCO3 ） has been carried out by dynamically monitoring of fouling thermal resistance. Meanwhile, the scale inhibition performance of low voltage electronic apparatus is investigated when it is used to treat the two kinds of mixed scales under different electric currents（0.2A, 1.0A）. The comparsion between fouling thermal resistance and heat transfer coefficient indicate that low voltage electronic apparatus has apparent anti-fouling effect for the mixed scale（MgO and CaCO3 ）, but different for the mixed scale（Si02 and CaCO3 ）.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2010年第11期1440-1444,共5页
Acta Energiae Solaris Sinica
基金
国家重点基础研究发展计划(973)项目(No.2007CB206904)
北京市优秀人才培养资助(No.20061D0501500186)
2008年度传热与能源利用北京市重点实验室开放基金资助
关键词
低压电子
混合垢
污垢热阻
传热系数
low voltage electronic
mixed scale
fouling thermal resistance
heat transfer coefficient
