Effects of Al2O3 Concentration in Ethylene Glycol on Convection Heat Transfer Coefficient

Q3 Engineering

International Journal of Vehicle Structures and Systems Pub Date : 2023-10-08 DOI:10.4273/ijvss.15.3.12

Kusammanavar Basavaraj, K. Elangovan, S. Shankar, S. Satyanarayan

引用次数: 0

Abstract

The energy demand is more in the world due to increase in the populations. The sustainable and clean renewable energy is required to meet the demand. The solar energy with nanofluid used as heat transfer medium is the best alternative source to enhance the rate of heat transfer. The nanofluids are the suspended nano sized particles in the water, ethylene glycol or oil. The stability analysis of Al2O3 ethylene glycol carried out using zeta potential method. The 20nm sized Al2O3 nanoparticles with volume concentration from 0.01% to 1% in ethylene glycol is used as nanofluid to study the effects of concentration on convective heat transfer coefficient (HTC) and wall function HTC at temperature 298K and mass flow rate 0.033kg/s. The investigation also carried out to study the effects of concentration on its thermophysical properties of nanofluid. ANSYS fluent software used to carry out the numerical analysis with suitable thermal boundary conditions.

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乙二醇中Al2O3浓度对对流换热系数的影响

由于人口的增加，世界上的能源需求越来越大。为了满足这一需求，需要可持续、清洁的可再生能源。以纳米流体为传热介质的太阳能是提高传热速率的最佳替代热源。纳米流体是悬浮在水、乙二醇或油中的纳米大小的颗粒。采用zeta电位法对Al2O3乙二醇的稳定性进行了分析。以体积浓度为0.01% ~ 1%的20nm Al2O3纳米颗粒为纳米流体，研究了温度为298K、质量流量为0.033kg/s时，浓度对对流换热系数(HTC)和壁函数HTC的影响。研究了浓度对纳米流体热物性的影响。采用ANSYS fluent软件在合适的热边界条件下进行数值分析。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Vehicle Structures and Systems Engineering-Mechanical Engineering

CiteScore

0.90

自引率

0.00%

发文量

期刊介绍： The International Journal of Vehicle Structures and Systems (IJVSS) is a quarterly journal and is published by MechAero Foundation for Technical Research and Education Excellence (MAFTREE), based in Chennai, India. MAFTREE is engaged in promoting the advancement of technical research and education in the field of mechanical, aerospace, automotive and its related branches of engineering, science, and technology. IJVSS disseminates high quality original research and review papers, case studies, technical notes and book reviews. All published papers in this journal will have undergone rigorous peer review. IJVSS was founded in 2009. IJVSS is available in Print (ISSN 0975-3060) and Online (ISSN 0975-3540) versions. The prime focus of the IJVSS is given to the subjects of modelling, analysis, design, simulation, optimization and testing of structures and systems of the following: 1. Automotive vehicle including scooter, auto, car, motor sport and racing vehicles, 2. Truck, trailer and heavy vehicles for road transport, 3. Rail, bus, tram, emerging transit and hybrid vehicle, 4. Terrain vehicle, armoured vehicle, construction vehicle and Unmanned Ground Vehicle, 5. Aircraft, launch vehicle, missile, airship, spacecraft, space exploration vehicle, 6. Unmanned Aerial Vehicle, Micro Aerial Vehicle, 7. Marine vehicle, ship and yachts and under water vehicles.