Eventos Anais de eventos
EVR 2021
VI Escola de Verão de Refrigeração
Thermal-Hydraulic Study for an Engine Cooling Radiator – EVR2021-0031
Submission Author:
João Paulo Schiavon Ieno , SP , Brazil
Co-Authors:
João Paulo Schiavon Ieno, Luis Novazzi, Cyro Albuquerque Neto
Presenter: João Paulo Schiavon Ieno
doi://10.26678/ABCM.EVR2021.EVR21-0031
Abstract
This work aimed to study the thermal-hydraulic behavior of a small scale radiator in steady state. An experimental bench was assembled with the radiator fit inside a wind tunnel. Air flow in the tunnel was adjusted by a fan and hot water was used as a heat source. It was electrically heated in a tank, pumped to the radiator and then went back to the tank, in a closed circuit. Experiments were carried out with constant water flow whereas air velocity was varied with the fan. The heating power was varied in function of the number of electric heaters turned on inside the water tank. Water and air temperatures were measured with thermocouples. The overall heat transfer coefficient indicated an important influence of frontal air velocity on heat exchange. A dimensionless correlation for air heat transfer coefficient was suggested and the influence of the air velocity at the radiator pressure drop was studied.
Keywords
Radiator, Heat exchanger, Heat transfer, pressure drop
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