Cross-flow Radiator Design using CFD for FSAE Car Cooling System and its Experimental Validation using the GEMS Data Acquisition System
2022-01-0449
03/29/2022
- Content
- The cross flow design of the radiator and the heat transfer, in conjunction with the temperature drop, was simulated and validated by the data acquisition system during the static and dynamic conditions of a car. The optimum design of the radiator decides the engine's operating temperature and the desired temperature drop gain by proper design of the inner core, number of fins and tubes, and the material used for the manufacturing of the radiator. The purpose of the radiator's proper design is to prevent the combustion engine from heating up more than then its operating temperature [1]. The design of the radiator is per CBR 600RR engine operating temperature. The highest temperature recorded around is 105°C, and during the worst condition, it reaches up to 110°C. So, approximately 10°C temperature drop must be there for proper working at operating temperature. The resulting heat dissipated through the water jackets and aluminum tube routing. The cooling temperature sensor(CTS) along with the data acquisition system is used to record temperature during the car's static and dynamic conditions. Different models based on numeric and computational simulation were evaluated to know the effect of changing the radiator's dimension and fin efficiency by changing the fin dimension according to the size of the radiator. Moreover, the relation between dimensionless numbers, such as the Colburn factor and friction factor, was correlated with numeric analysis. Furthermore, for the radiator's optimal design and size, the different mass flow rates of water were used to analyze the relationship between the temperature drop, Reynolds number, Nusselt number, and mass flow rate. The effect of change in average temperature to friction factor and the Colburn factor is also determined.
- Citation
- Jain, J., Rajagopal, T., Selvaraj, A., and Devaraj, E., "Cross-flow Radiator Design using CFD for FSAE Car Cooling System and its Experimental Validation using the GEMS Data Acquisition System ," SAE Technical Paper 2022-01-0449, 2022, .