采用"两步法"制备了稳定性良好的γ-Al2O3-DW和CNTs-DW纳米流体,研究了分散剂对纳米流体悬浮稳定性的影响,测试了溶液的热扩散系数和比定压热容,并根据测试数据计算出导热系数.结果表明,分散剂种类和用量对纳米流体的分散有重要影响,相对于基础液体(DW),纳米流体的导热系数和热扩散系数有一定的提高,但比定压热容减小.
参考文献
| [1] | Choi S U S.Enhancing thermal conductivity of fluid with nanoparticles[M].New York,1995:99. |
| [2] | Lee S;Choi S U S;Li S et al.Measuring thermal conductivity of fluids containing oxide nanoparticles[J].Heat Transfer,1999,121:280. |
| [3] | Avtar S A .Augmentation of heat transport in laminar flow of polystyrene suspensions.Ⅰ Experiments and results[J].Journal of Applied Physics,1975,46:3408. |
| [4] | Hamilton R L;Crosser O K .Thermal conductivity of heterogeneous two_component systems[J].Industrial and Engineering Chemistry Fundamentals,1962,1(03):187. |
| [5] | 饶坚,陈沙鸥,戚凭,安惠中,李延强.分散剂（PMAA-NH4）质量分数和pH值对纳米氧化锆悬浮液分散效果的影响[J].青岛大学学报(自然科学版),2003(03):37-39. |
| [6] | 谢华清,王锦昌,奚同庚,刘岩.SiC纳米粉体悬浮液导热系数研究[J].硅酸盐学报,2001(04):361-364. |
| [7] | Wang X;Xu X;Choi S U S .Thermal conductivity of nanoparticle_fluid mixture[J].Thermophys Heat Transfer,1999,13:474. |
| [8] | Lee S;Choi S U S.Application of metallic nanoparticle suspen-sions in advanced cooling system[M].New York,1996:227. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%