The automobile radiator is a heat exchange device for heat exchange between the engine coolant and the air of the automobile. The radiator exchanges heat with convection of the air to dissipate the heat of the engine coolant to cool the engine. In an oscillating flow heat pipe automobile radiator, heat is radiated by a forced convection heat exchange between the heat radiating section of the oscillating flow heat pipe and the air. In order to enhance the heat transfer performance between the oscillating flow heat pipe and the air, the heat pipe can be used to effectively increase the heat exchange area and increase the turbulence, thereby enhancing the heat transfer effect. Oscillating flow heat pipe automotive radiator structure diagram, its dimensions and experimental use of the belt-belt copper radiator is the same, so that it is easy to conduct comparative analysis. In the experimental process, the tube-belt copper radiator and the oscillating-flow heat pipe radiator were respectively tested.
During the experiment, the heat sink was placed in the mid section of the air duct, different wind speeds were achieved through the air duct, and the situation that the radiator of the automobile was heat exchanged with the air was simulated. The hot end used hot water as the heating medium. In the experiment, air side pressure, temperature, and speed were measured. The experimental study of the heat transfer performance of an oscillating flow heat pipe automobile radiator was shown in the layout of measuring points at the A and B sections, and the nine points uniformly arranged in the air cylinder were measured. Take the average value as the final measurement result; oscillating flow heat pipe radiator water side pressure, temperature and flow measurement point arrangement; pipe belt type copper automobile radiator measuring point arrangement. Test equipment used in the experiment. The solid line is a tube-belt type copper automobile radiator, and the dotted line is an oscillating flow heat pipe automobile radiator. It can be seen from the figure that the heat dissipation of both radiators increases with the increase of wind speed. Obviously this is because the greater the wind speed, the greater the forced convection heat transfer coefficient of the surface, and thus the other conditions are the same. The greater the heat exchange. It can also be seen that at the same wind speed, the greater the water flow, the greater the heat dissipation. And the heat dissipation of the oscillating flow heat pipe Car Radiator is larger than that of the tube-belt copper car radiator under the same experimental conditions, and the increase rate is up to 26.5%.
