[1]罗亚萍,邱兆文.氧化石墨烯-水和乙二醇混合基纳米流体对氢发动机散热影响研究[J].郑州大学学报(工学版),2018,39(04):25-29.[doi:10.13705/j.issn.1671-6833.2018.04.004]
　Luo Yaping,Qiu Zhaowen.Study on the Influence of Graphene Oxide-Water and Glycol Nanofluids on Heat Transfer of Hydrogen Engine[J].Journal of Zhengzhou University (Engineering Science),2018,39(04):25-29.[doi:10.13705/j.issn.1671-6833.2018.04.004]
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氧化石墨烯-水和乙二醇混合基纳米流体对氢发动机散热影响研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
39
期数:
2018年04期
页码:
25-29
栏目:
出版日期:
2018-07-22

文章信息/Info

Title:
Study on the Influence of Graphene Oxide-Water and Glycol Nanofluids on Heat Transfer of Hydrogen Engine
作者:
罗亚萍; 邱兆文
长安大学 汽车学院,陕西 西安,710064
Author(s):
Luo Yaping;  Qiu Zhaowen
Automobile College of Chang’an University, Xi’an, Shaanxi, 710064
关键词:
氧化石墨烯; 纳米流体; 氢内燃机; 数值模拟; 散热性能
Keywords:
Graphene oxide;  Nano fluid;  Hydrogen internal combustion engine;  Numerical simulation;  The heat dissipating performance
DOI:
10.13705/j.issn.1671-6833.2018.04.004
文献标志码:
A
摘要:
采用高导热性材料氧化石墨烯与水和乙二醇基液配比成纳米流体，研究该纳米流体对氢内燃机散热的影响规律。对比分析纳米流体的热物性随氧化石墨烯体积分数的变化规律，并利用AVL Fire软件对氢内燃机冷却水套进行网格划分和三维数值模拟计算，得到整机冷却水套在冷却液为氧化石墨烯-水和乙二醇混合基纳米流体（乙二醇体积分数为10%，氧化石墨烯体积分数分别为0%、1%、2%、5%）时的速度分布、热流量变化以及压力损失等信息。结果表明，随着氧化石墨烯体积分数的增大，纳米流体的换热能力不断增强，冷却水腔总热流量逐渐增大；然而以氧化石墨烯-水乙二醇混合基纳米流体作为冷却介质引起水套进出口总压降增大，导致冷却系统水泵功率的增加。
Abstract:
The graphene oxide (GO) which has high thermal conductivity was mixed with water and glycol to form and the influence of the nanofluid on the heat dissipation of hydrogen internal combustion engine was studied. By comparative analysis of the change regularity for nanofluids’ thermal properties with the volume fraction of GO, while mesh generation and 3D numerical simulation for the cooling water jacket of hydrogen engine based on AVL Fire software, the information of velocity distribution, heat flux change and pressure loss can be obtained when coolant was GO-water and glycol nanofluids(the volume fraction of ethylene glycol is 10%, the volume fraction of graphene oxide were 0%, 1%, 2%, 5%). The results showed that the heat flux gradually increases and heat transfer capability evidently enhances while the concentration of nanoparticles increased, however it was caused total pressure increase between inlet and outlet in the cooling jacket and power loss of water pump also increased.

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更新日期/Last Update: 2018-07-25