水基碳纳米管纳米流体的冷却特性  

Cooling characteristic of water based carbon nanotube nanofluids

作　　者：邬胜伟[1] 曾效舒[1] 黄民富 魏嘉麒[1] 

机构地区：[1]南昌大学机电工程学院,江西南昌331700 [2]江西铜业集团余干铸锻有限公司,江西余干335100

出　　处：《金属热处理》2013年第12期104-107,共4页Heat Treatment of Metals

摘　　要：采用了X-Y函数记录仪，且用45钢做温度探头，研究了水基碳纳米管（CNT）纳米流体的冷却特性。结果表明，在未添加十二烷基苯磺酸钠（SDBS）条件下，800℃以下，随CNT含量的增加，水基CNT纳米流体的冷却性能逐渐下降。在添加SDBS条件下，在770—440℃随CNT含量的增加，水基CNT纳米流体的冷却性能增大。相同CNT含量条件下，加分散剂的水基纳米流体的冷却速度明显低于未加分散剂的纳米流体。Cooling curves of water based carbon nanotube （CNT） nanofluids was investigated by X-Y recorder and temperature probe with 45 steel. The results show that, below 800 ℃, with CNT content increasing, the cooling capacity of water based CNT nanofluid decreases without SDBS adding. At 770440 ℃, with CNT content increasing, the cooling capacity of water based CNT nanofluid increases with SDBS adding. At the same CNT content, the cooling rate of the water based CNT nanofluid with SDBS is significantly lower than that of the nanofluid without SDBS.

关 键 词：水基碳纳米管纳米流体 含量 分散剂 冷却特性 十二烷基苯磺酸钠(SDBS) 

分 类 号：TG154.4[金属学及工艺—热处理]