Parametric Sensitivity Analysis of Automobile Radiator Performance

2019 International Conference on Advanced Electronic Materials, Computers and Materials Engineering

无线电电子学;计算机科学;材料科学

Bargal, Mohamed H.S.^1^2 ; Abdelkareem, Mohamed A.A.^1^3 ; Wang, Yiping^1

School of Automotive Engineering, Wuhan University of Technology, Wuhan

430070, China^1

Department of Mechanical Power Engineering and Energy, Faculty of Engineering, Minia University, El-Minia

61517, Egypt^2

Automotive and Tractors Engineering Department, Faculty of Engineering, Minia University, El-Minia

61111, Egypt^3

关键词: Air inlet temperature;    Automotive radiators;    Operating condition;    Parametric sensitivity analysis;    Radiator performance;    Sensitivity changes;    Thermal Performance;    Water temperatures;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/563/4/042038/pdf
DOI  :  10.1088/1757-899X/563/4/042038

来源: IOP

【 摘 要 】

The automotive radiator is an important part for automotive engines regarding its direct influence on the thermal performance of the engine. This paper presents a theoretical parametrical sensitivity analysis of an automotive radiator based on the effectiveness-NTU method. In this manner, the paper firstly focuses on the influence of operating conditions of both the water and air including inlet temperatures and Reynolds numbers on the radiator effectiveness, heat transfer rate, and the pressure drop. Furthermore, the sensitivity of the radiator responses versus these operating conditions is provided. Given the obtained results, it is concludingly reported that the radiator effectiveness correlates significantly to the water Reynolds number and the water inlet temperature rather than its correlation to the air Reynolds number and air inlet temperature. While the heat transfer rate correlates strongly to the inlet temperatures of the water and air, respectively, while the heat transfer rate weakly responded to the Reynolds numbers of the water and air. On the third hand, the water pressure drop presented higher sensitivity change at lower water temperatures.