Abstract Mono, hybrid, and ternary nanofluids were tested inside the plain twisted-tape pipes using k-omega shear stress transport turbulence models. The Reynolds number was 5,000 ≤ Re 15,000, thermophysical properties calculated under condition of 303 K. Single (Al 2 O 3 /distilled water [DW], SiO /DW, ZnO/DW), hybrid (SiO + Al ZnO/DW, ZnO /DW) in mixture ratio 80:20, ZnO/DW) 60:20:20 estimate...

Abstract This study is conducted to investigate the effect of off-center placement twisted tape on flow distribution and heat transfer in a circular tube. The width 20, 18, 16, 14 12 mm performance discussed under same twist ratio 2.0. numerical analysis field, average Nusselt number, friction factor thermo-hydraulic parameter tube are with Reynolds number ranged from 2600 8760. results indicat...

• Microchannel heat sinks are modelled by conjugate transfer and laminar flow CFD. Four performance enhancement tape inserts tested individually combined. Tape axial twist improves the Nusselt number gains to hydraulic loss trade-off. With best heated base is 16 ℃ cooler at 100 W/cm 2 flux input. Sealing in barrel prevents tip leakage raises conduction. The continuous power increase miniaturiza...

In this article, the optimization of a twisted strip heat exchanger was explored aiming at enhancing transfer. To end, governing equations using ANSYS-FLUENT software and nanofluid flow k-ε RNG turbulence model were simulated in exchanger, respectively. The investigated parameters included temperature, pressure, velocity, kinetic energy (TKE), concentration, shape factor, Reynolds number, diame...