Abstract
The present work is focused on the Graphene-based nanofluids with high thermal conductivity which helps to improve the performance and enhance heat transfer. The thermal systems emphasis on the fluid coolant selection and statistical model. Graphene is a super-material, lighter than air, high thermal conductivity, and chemical stability. The purpose of the research is to work up with Graphene-based Nanofluids i.e., Graphene (G) and Graphene oxide (GO). Nanoparticles are dispersed in a base fluid with a 60:40 ratio Water & Ethylene Glycol and at different volume concentrations ranging from 0.01%-0.09%. Radiator model is designed in modelling software and louvered strip is inserted. The simulation (Finite Element Analysis) is performed to evaluate variation in temperature drop, enthalpy, entropy, heat transfer coefficient and total heat transfer rate of the considered nanofluids, results were compared by with and without louvered strip in the radiator for the temperature absorption. 58-60% enhancement of enthalpy observed when Graphene and Graphene oxide nanofluid was utilized. 1.8% enhancement of entropy is observed in 0.09% volume concentration of the Graphene and Graphene oxide nanofluid when louvered strips are inserted in the radiator tube at a flow rate of 3 LPM. With louvered strip inserted in the radiator, heat transfer coefficient enhanced by 236% for Graphene and 320% enhancement is identified for Graphene oxide nanofluid when compared to without louvered strip insert. The results stated that high performance is observed with the utilization of louvered strip in the radiator tube.
Highlights
The Heat exchangers are the set of things working together as parts of a mechanism used to transfer heat from two or more fluids
Nanofluids act as an efficient coolant, when nanoparticles are mixed with base fluids such as ethylene glycol to improve the capacity of heat transfer in the radiator by an approximate value between 15–40% [9]
The fluid is passed through the radiator tubes without any disturbance, but with an obstacle there creates the turbulence which caused drop-in pressure, velocity, temperature
Summary
The Heat exchangers are the set of things working together as parts of a mechanism used to transfer heat from two or more fluids. One such kind of a heat exchanger is a radiator which can transfer the sensible heat termed as thermal energy to cool or heat from one medium to other [1,2,3]. Irrespective of the improved cooling capacity, the fundamental approach of using fins has become extinct due to an increase in the size of the radiator. The heat transfer fluid could not meet the design criteria to increase the thermal efficiency of the heat exchanger. Nanofluids act as an efficient coolant, when nanoparticles are mixed with base fluids such as ethylene glycol to improve the capacity of heat transfer in the radiator by an approximate value between 15–40% [9]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
