Hamed K. Arzani and Ahmad Amiri and Hamid K. Arzani and Salim Newaz Kazi and Ahmad Badarudin
Thermophysical and Heat Transfer Performance of Covalent and Noncovalent Functionalized Graphene NanoplateletBased Water Nanofluids in an Annular Heat Exchanger
193 - 200
2016
10
2
International Journal of Materials and Metallurgical Engineering
https://publications.waset.org/pdf/10003579
https://publications.waset.org/vol/110
World Academy of Science, Engineering and Technology
The new design of heat exchangers utilizing an
annular distributor opens a new gateway for realizing higher energy
optimization. To realize this goal, graphene nanoplateletbased water
nanofluids with promising thermophysical properties were
synthesized in the presence of covalent and noncovalent
functionalization. Thermal conductivity, density, viscosity and
specific heat capacity were investigated and employed as a raw data
for ANSYSFluent to be used in twophase approach. After
validation of obtained results by analytical equations, two special
parameters of convective heat transfer coefficient and pressure drop
were investigated. The study followed by studying other heat transfer
parameters of annular pass in the presence of graphene nanopletelesbased
water nanofluids at different weight concentrations, input
powers and temperatures. As a result, heat transfer performance and
friction loss are predicted for both synthesized nanofluids.
Open Science Index 110, 2016