This thesis covers the design and construction of the cooling system for the University of Queensland Formula SAE racecar. The cooling system is a fundamental part of any engine and especially in racing applications must be designed carefully. The aim of this project was to design a lightweight and reliable cooling system that could maintain the engine at operating temperature when the car is stationary.
The primary difference between the 2006 car and previous models is the addition of a turbocharger. This will increase power output of the car, which subsequently increases the requirements of the cooling system.
The cooling system will utilize twin radiators operating in series. These will be mounted in side pods with electric fans to draw air. Electric water pumps will be used and a thermostat to control temperatures during warm-up. The turbo-charger will also be water cooled.
A detailed heat exchanger sizing design was completed using the methodology established by Kays & London (1984). This gave final dimensions of 275x275x29mm for the radiator core.
Electric fans off passenger cars have been used to provide the air flow when the car is stationary or at low speed. These have been tested to show they are superior then after-market fans for this application.