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This work consists to evaluate the impact of the tube design on the car radiator heat rejection performance. For this work we come up with two propositions, the first one consists to change the traditional tube shape “1.6x16 B-type” to “1.6x16 Dot Btype”. The second one is just to change the traditional tube dimension from 1.6x16 to 1.4x16. After the two samples radiators were made, we will proceed to their performance analysis such as the heat rejection, the coolant pressure drops, and the airside pressure drop. For these performance tests we will use the company laboratory Multi-functional test bench (T-HWS-2H), and some mathematical formula to calculate our samples performance. At last we will compare our analysis results with the radiator “1.6x16 B-type” heat rejection data (Req.), which structural model and data is our research basic standard. The results show that the tube design has great impact on the radiator heat rejection performance. This work has been performed at HUBEI RADIATECH COOLING SYSTEM CO., LDT (HBR). Keywordscar radiator; tube type; fin

The Impact of Tube Optimization Design on Radiator Heat Rejection Performance