纳米级CuO粉末应用于太阳能集热器的试验研究  

Experimental study on the application of nano-grade copper oxide powder in solar energy collector

作　　者：赵金秀[1] 周红星[1] ZHAO Jin-xiu;ZHOU Hong-xing(Department of Civil Engineering, Tangshan College, Tangshan 063000, Chin)

机构地区：[1]唐山学院土木工程系

出　　处：《粉末冶金工业》2018年第3期48-52,共5页Powder Metallurgy Industry

基　　金：唐山市重点实验室项目(140160001);河北省科学技术厅项目(17274318);唐山市科学技术研究与发展计划项目(15110210a)

摘　　要：将纳米级CuO粉末添加到集热器的工质水中,测定了水溶液的导热系数。在相同的太阳辐射下,以添加不同质量分数的纳米级CuO粉末的水溶液和纯水分别作为集热器集热工质进行对比试验。结果表明：添加纳米级CuO粉末的水溶液的导热系数比纯水显著提高。以添加质量分数为0.1%、0.5%和1.0%纳米级CuO粉末的水溶液为集热工质的集热器出口温度比以纯水为集热工质的集热器出口温度分别提高4.7%、6.6%和4.9%。以添加0.5%质量分数的纳米级CuO粉末的水溶液为集热工质的储热水箱比以纯水为集热工质的储热水箱水温高出15.2%,储热量提高29.8%。The nano-sized copper oxide powder was added to the working fluid of heat collector,and the thermal conductivity of the aqueous solution was measured. Aqueous solution added with different mass fraction of nano CuO powder and pure water were used as working fluid of heat collector,the comparative experiments was carried out under the same solar radiation. The results show that the thermal conductivity of aqueous solution with nano CuO powder is significantly higher than that of pure water. The outlet temperature of the heat collector with 0.1%,0.5% and 1.0% nano CuO powder added as working fluid is 4.7%,6.6% and 4.9% higher than that with pure water as working fluid,respectively. The water temperature and heat storage capacity of the heat storage tank with 0.5% CuO nano-powder as heat collection medium are 15.2% and 29.8% higher than those with pure water as heat collection medium.

关 键 词：纳米级CuO粉末 太阳能集热器 集热工质 试验测试 

分 类 号：TB383.3[一般工业技术—材料科学与工程] TK513.1[动力工程及工程热物理—热能工程]