| dc.description.abstract | Heat exchangers play an important part in the field of energy conservation, conversion and
recovery. Numerous studies have focused on direct transfer type heat exchanger, where heat
transfer between fluids occurs through a separating wall or into and out of a wall in a
transient manner. There are two important phenomena happening in a heat exchanger: fluid
flow in channels and heat transfer between fluids and channel walls. Thus, improvements to
heat exchangers can be achieved by improving the processes occurring during those
phenomena. Nano fluids, on the other hand, display much superior heat transfer
characteristics compared to traditional heat transfer fluids. Nano fluids refer to engineered
fluids that contain suspended nanoparticles with average size below 100 mm in traditional
heat transfer fluids such as water, oil and ethylene glycol. An experimental system will be
designed and constructed to investigate heat transfer behavior of Aluminum oxide (Al2O3) of
Nano fluid a car-radiator heat exchanger. Heat transfer characteristics will be measured under
the turbulent flow condition. The experiments is planned to be conducted for wide ranges of
Pellet numbers, and volume concentrations of suspended nanoparticles. The outcome
expectation is to measure the significance of Pellet number on the heat transfer
characteristics. The optimum volume concentrations in which the heat transfer characteristics
become the maximum enhancement is also addressed. Finally, the structure of aluminum
oxide (Al₂O₃) Nano fluid is compared. The
Water tank holds 35 liters of water. By heating the water to 44 degrees and entering the
engine and whose output was through radiator cooling, by this system able to reduce the
maximum temperature by 4.89%. Then put the same amount of water in the water tank and
this time by mixing coolant with water and heating it to 44 degrees and entering the engine
and the output of which was through radiator cooling, At last able to reduce the maximum
temperature by 7.10%. Finally, again the same amount of water in the water tank and this
time mixed aluminum oxide (Al2O3) with water and heated it to 45 degrees to enter the
engine and whose output was through radiator cooling, in the way able to reduce the
maximum temperature by 10.95%. | en_US |
