多壁碳纳米管-乙二醇纳米流体集热性能研究  

Research on heat collection capacity with multi-walled carbon nanotubes-ethylene glycol nanofluid

作　　者：陈飞[1,2] 戴雨辰 叶晓江[2,3] 侯志坚[1] 

机构地区：[1]深圳职业技术学院机电学院,广东深圳518055 [2]武汉工程大学理学院,湖北武汉434200 [3]华中科技大学材料科学与工程学院,湖北武汉430074

出　　处：《节能》2016年第6期40-43,2,共4页Energy Conservation

摘　　要：为研究多壁碳纳米管-乙二醇纳米流体（MWCNTs—EG）的集热能力，采用单层玻璃管作为集热管，对6种不同体积分数、不同颗粒粒径的MWCNTs—EG流体和水进行了闷晒集热实验。测试表明，相同体积分数的MWCNTs-EG流体的集热温度随着颗粒粒径的增大而增大，其瞬时集热量最高可达54．2kJ，是水集热量的2．4倍。其中，MWCNTs-EG（30～50nm，0．06v01％）的温升最为明显，最大平均值是53．8℃，温升为22．7℃。此外，MWCNTs-EG的体积分数、颗粒粒径以及其团聚沉降均能影响着纳米流体的集热效果。Multi-walled carbon nanotubes-glycol nanofluids(MWCNTs-EG) collector ability was investgated in this paper,used a singlelayer glass tube collector,the experiment of on six different concentrations and different particle size of MWCNTs-EG fluid and water were done under the sun.Tests have shown that the same volume fraction MWCNTs-EG fluid collector temperature increases as particle size increases,the maximum instantaneous heat is up to 54.2kJ,is 2.4 times that of water.And,MWCNTs-EG(30~50nm,0.06vol%) temperature rise is most obvious,the maximum average is 53.8℃,the temperature rise of 22.7℃.In addition,MWCNTs-EG volume fraction particle size and its reunification settlement could affect the effect of nanofluid collector.

关 键 词：多壁碳纳米管 纳米流体 体积分数 温度 

分 类 号：TB383[一般工业技术—材料科学与工程]