摘要
通过实验研究了不同质量浓度的石墨烯/丙酮纳米流体振荡热管不同充液率下的传热性能。结果表明,小充液率(45%)下,石墨烯/丙酮纳米流体振荡热管的热阻均小于纯工质丙酮,但烧干现象并没有得到明显改善;中等充液率(62%~70%)下,石墨烯/丙酮纳米流体振荡热管较纯工质丙酮来说不再发生烧干现象,纳米流体振荡热管的热阻随着加热功率的增加而明显降低,浓度为0.01%时具有较为明显的传热优势;大充液率(90%)下,石墨烯/丙酮纳米流体振荡热管的传热性能则普遍优于纯工质,且随着加热功率的增加,传热性能的优势更加明显。
An experimental investigation was carried out to examine the heat transfer performance of a pulsating heat pipe（ PHP） using graphene/acetone nanofluids. The results showed that at the small filling ratio（ 45%）,graphene/acetone the thermal resistance of PHP with graphene/acetone nanofluid was lower than with pure acetone,but dry-out condition was not alleviated obviously. At the medium filling rate（ 62% - 70%）,PHP with graphene/acetone nanofluid was no longer burn dry-out condition compared with pure acetone,the thermal resistance of PHP with graphene/acetone nanofluid decreased with the increasing of heating power,and the concentration of 0. 01% had obvious advantage. At high filling rate（ 90%）,the heat transfer performance of PHP with graphene/acetone nanofluid was generally better than that of pure acetone,and the heat transfer performance of graphene/acetone nanofluid had more obvious advantages with the heating power increases.
作者
周宇
崔晓钰
施赛燕
韩华
陈成猛
ZHOU Yu;CUI Xiao-yu;SHI Sai-yan(School of Energy and Power Engineering,University of Shanghai for Science ＆ Technology,Shanghai 200093,China)
出处
《能源工程》
2018年第4期1-7,共7页
Energy Engineering
基金
国家自然科学基金资助项目(51076104)
2012年度“科技创新行动计划”高新技术领域项目(12dz1143800)
关键词
传热
纳米粒子
石墨烯
振荡热管
heat transfer~ nanopartiele
graphene
pulsating heat pipe
