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Title: Effects of Al2O3/ Water and Ethylene Glycol based nanofluid on heat transfer characteristics in Single pass Multi tube cross flow heat exchanger
Authors: Singh, Amarinder
Supervisor: Sharma, Sumeet
Gangacharyulu, D.
Keywords: nanofluids;nanoparticles;thermal conductivity;viscosity;density;heat transfer coefficient
Issue Date: 11-Aug-2016
Publisher: Amarinder Singh
Abstract: Experimental study was conducted to determine the change in overall heat transfer coefficient and the thermo hydraulic performance characteristics of a single pass multi tube cross flow heat exchanger using Al2O3 nanoparticles in a binary mixture of water and ethylene glycol. The base fluid was a mixture of water and ethylene glycol on 60:40% by vol. The concentration of Al2O3 nanoparticles was 0.05% and 0.10% by volume and the temperature was varied from 45 C to 55 C with flow rate from 3, 4 and 5 LPM. Thermal conductivity and viscosity were also measured. Enhancement of 6.58% in thermal conductivity was seen at 30 C while it was 8.23% at 60 C. The overall heat transfer coefficient based on the fin side heat transfer area was increased by 12.64%. The friction factor increased by 13.9% and 20.81% for 0.05% and 0.10% nano particle volume concentrations.
Description: Master of Engineering-Thermal Engineering
Appears in Collections:Masters Theses@MED

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