Abstract
The heat effect induced by hot weather causes car cabins to absorb heat from the surrounding area, making the temperature inside the compartment higher than the temperature outside. The excessive heat that gets trapped in closed cabins makes drivers and passengers uncomfortable when they enter their cars. This situation can be resolved by increasing air conditioning power while the engine is running, and this condition would increase the heat load of the air conditioner system. To this end, the present study describes the development of a solar- powered car ventilation system that relies on the Internet of things (IoT). The proposed solar- powered car ventilation system consists of a temperature sensor (DHT22) that detects the temperature inside the car cabin. Further, NodeMCU ESP32 has been used as a microcontroller to control the system. Temperature, fans, windows, and rainfall conditions were monitored via wireless connections using the Blynk application. The results show that the proposed ventilation system can reduce car cabin temperature and that its temperature readings can be monitored through the user’s mobile device. Furthermore, because the system operates on solar energy, it is environmentally friendly.
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