Modelling and Experimental Analysis of a Thermal System Equivalent to a Car Parked in Direct Sunlight

Abstract

This thesis is to determine the amount of heat getting accumulated in the interior of a car. For this purpose, a box is made up of toughened glass and it is to be used to check the amount of heat getting accumulated into the box. At the later stage, a double layer box is made up of toughened glass and air is filled in between the two layers of glasses. The amount of heat getting accumulated in the interior of the glass cabin is measured. In the third stage, instead of air, argon gas is used in between the two layers of glasses in such a way that it cannot escape. Now, again the amount of heat accumulated in the interior of the double layer glass cabin is measured. In the next phase, instead of trapped argon, flowing argon is used in between the two layers of toughened glasses and temperature of the air present inside the closed cabin is measured. The bond graph model of the entire thermal system with single and double layers of glasses is developed. For the validation, the results obtained from the experiments are compared with the results from the Bond graph modelling and it is observed that the theoretical results closely match with the experimental results.