A STUDY AND DESIGN OF AN AUTOMATIC TEMPERATURE REDUCER FOR CARS PARKING IN THE SUNLIGHT

Abstract

As automotives being parked in the sunlight, the greenhouse effect may increase the temperature in the car up to 80⁰C while ambient temperature is at 38⁰C - 40⁰C. If there are objects such as cell phone battery, gas lighter or fizzy drinks etc. inside, they may create explosion or combustion inside the car. To prevent this phenomenon and reduce the increasing of temperature in the car while parking in the sun, a theory-based calculation combined with experiments was implemented and presented in this paper. The results of this study demonstrated that, when the ambient temperature is 34⁰C, with experimental volume is 50dm³, the temperature will decrease 7⁰C after 14 minutes 29 seconds.