Comparison of the cooling effects of a locally formulated car radiator coolant with water and a commercial coolant

The cooling properties of a locally formulated coolant (sample C) vis-a-vis, its boiling characteristics and specific heat capacity were investigated along side with a common coolant-water (as sample A) and a commercial coolant (sample B). The results of the investigation showed that sample C gave the best performance compared to the other two samples A and B: the boiling points of sample C was 1100C, sample A 1000C, and sample B 1010C. This means that the possibility of a boil-out of sample C from the radiator is little compared to samples A and B. Also, for the same quantity of coolant more heat would be required to raise sample C to its boiling point than for samples A and B. In other word, better cooling would be achieved using sample C. The specific heat capacity for sample C was 4238 Jkg-1K-1, which was also a good compromise against samples Abut better than sample B having 4266 Jkg-1K-1 and 4208Jkg-1K-1 respectively