CFD analysis of heat transfer performance of graphene based hybrid nanofluid in radiators

International Conference on Recent Advances in Materials & Manufacturing Technologies

Bharadwaj, Bharath R.^1 ; Sanketh Mogeraya, K.^1 ; Manjunath, D.M.^1 ; Ponangi, Babu Rao^2 ; Rajendra Prasad, K.S.^1 ; Krishna, V.^2

Department of Mechanical Engineering, PES University, 100 Feet Ring Road, Banashankari Stage III, Bengaluru, Karnataka

560085, India^1

Department of Post Graduate Studies, Mechanical Engineering, PES University, 100 Feet Ring Road, Banashankari Stage III, Bengaluru, Karnataka

560085, India^2

关键词: Conventional coolants;    Cooling requirements;    Critical systems;    Heat transfer performance;    Heat transfer rate;    High thermal conductivity;    Hybrid nanofluid;    Large amounts;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/346/1/012084/pdf
DOI  :  10.1088/1757-899X/346/1/012084

来源: IOP

【 摘 要 】

For Improved performance of an automobile engine, Cooling systems are one of the critical systems that need attention. With increased capacity to carry away large amounts of wasted heat, performance of an engine is increased. Current research on Nano-fluids suggests that they offer higher heat transfer rate compared to that of conventional coolants. Hence this project seeks to investigate the use of hybrid-nanofluids in radiators so as to increase its heat transfer performance. Carboxyl Graphene and Graphene Oxide based nanoparticles were selected due to the very high thermal conductivity of Graphene. System Analysis of the radiator was performed by considering a small part of the whole automobile radiator modelled using SEIMENS NX. CFD analysis was conducted using ANSYS FLUENT®for the nanofluid defined and the increase in effectiveness was compared to that of conventional coolants. Usage of such nanofluids for a fixed cooling requirement in the future can lead to significant downsizing of the radiator.