RT Journal Article
T1 Experimental study of nanofluids flow and heat transfer over a backward-facing step channel
A1 Hilo, Ali Kareem
A1 Talib, Abd Rahim Abu
A1 Acosta Iborra, Antonio
A1 Sultan, Mohammed Thariq Hameed
A1 Hamid, Mohd Faisal Abdul
AB The forced convective heat transfer and friction factor of nanofluidsflow over a backward-facing step (BFS) in achannel with the base wall dissipating a uniform heatflux are experimentally investigated in this paper. Nano-particles such as CuO and MgO dispersed in pure ethylene glycol (EG) with average diameters of 40 nm, and vol-ume concentrations of 0, 1, 3, and 5% are considered as the working nanofluids. The results indicate that the heattransfer rate increases as the volume concentration of nanoparticles increased. The Nusselt number is enhancedup to 11% at 0.05 volume concentration compared to pure EG. The friction factor increases up to approximately 15% at Reynolds number (Re) of 5000 and volume concentrations of 0.01 and 0.03. The maximum value ofthe PEC in a BFS channel is 1.5 for the CuO-EG and 1.2 for the MgO-EG at a volume concentrations of 0.03 and Re=20,000.
PB Elsevier
SN 0032-5910
YR 2020
FD 2020-07-15
LK https://hdl.handle.net/10016/32531
UL https://hdl.handle.net/10016/32531
LA eng
DS e-Archivo
RD 27 jul. 2024