International Journal for Research in Applied Science & Engineering Technology (IJRASET) ISSN: 2321-9653; IC Value: 45.98; SJ Impact Factor: 7.429 Volume 8 Issue V May 2020- Available at www.ijraset.com Different volume concentration is used to calculate thermal conductivity of nanofluids. Thermal conductivity varies with temperature and volume concentration was studied. 6
Investigation Properties
on of
Physical
In this paper we studied different physical properties of Al2O3 water nanofluid and
Al2O3/Water
experimentally investigated the effective thermal conductivities and viscosity of
Nano Fluid (2015)
nanofluid. The equipment called KD2 thermal property analyzer uses to measure thermal conductivity and thermal resistivity. The KD2 analyzer also calculate thermal data and display thermal conductivity in 90 just seconds. It showed the thermal conductivity of Al2O3 nanofluids increases with a partial volume concentration & the viscosity of nanofluid depend on volume percentage. The electrical conductivity is higher than best fluids available as coolant.
7
Performance Investigation Of
This paper concluded that nanofluid having better heat transfer rate as compare to other
Automobile
Using
coolant. Heat transfer rate increases with the temperature increases. Because of higher
Al2O3 As Base Nan fluid
heat transfer rate in radiator we can use compact sized radiator for same coolant and
(2016)
this reduced frontal area of automobile and it result in reduced aerodynamic drag and
Radiator
ultimately increase fuel economy. 8
Study
Of
Heat
Transfer
In this paper detail procedure for preparation of nanofluids is explained. Nanofluid
Characteristics Of Nano Fluid In
preparation done by two step method, which involve the use of Ultrasonic Sonicator
An Automotive Radiator (2018)
for Mechanical Vibration which tends to dissolve nanoparticle in the base fluid. Followed by Mechanical Exciting to fluid to dissolve the denser particles. And eventually the use of Magnetic Stirrer to obtain a homogeneous mixture of Al2O3 nanoparticles with base fluid. By virtue of experimentation the overall heat transfer coefficient, Nusselt number and Reynolds number increase with coolant flow rate which gives higher heat transfer rate compare to base fluids. It is concluded that nanofluid has higher heat transfer properties than other base fluid like water and ethylene glycol and good economy.
9
Experimental Investigation Of
Ethylene glycol / water is a normal coolant used in a car radiator. In this paper Al2O3
Heat Transfer Potential Of
water–mono ethylene glycol nanofluids is used as a coolant for car radiator. This
Al2O3/ Water-Mono Ethylene
coolant have higher thermophysical properties than normal coolant. Heat transfer rate
Glycol Nanofluids As A Car
increases with concentration of nano particle. It has higher heat transfer rate. By
Radiator Coolant (2018)
experimentation it is concluded that use of nano fluid provides scope for design of compact radiator size & reduce weight of system because of this the car can possess better aerodynamics at similar rate of heat dissipation.
10
Effect
of
heat
transfer
NOx emission from engine reduce to 12.5 % at full load for nanofluid as compared to
enhancement and NOx emission
distilled water based coolant because of the lower overall operating temperature of the
using Al2O3/ Water Nanofluid
IC engine.
as coolant in IC engine
Overall heat transfer coefficient was increased by 20%, 25% and 29% for Al2O3/water nanofluid with volume concentration of 1%, 1.5% and 2% respectively at Peclet no 3000 compared to those of distilled water coolant at part load.
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