DESIGN AND IMPLEMENTATION OF AUTOMETED GAS LEAK DETECTOR

Abstract

This project presents the design and implementation of automated Gas leak detector and ventilation system, aimed at enhancing safety in environments where LPG is used. The system utilizes an Arduino Uno microcontroller, an MQ2 gas sensor, an SG90 micro servo motor, a fan, and a buzzer to detect gas leaks, alert users, and initiate a ventilation process. The MQ2 sensor detects LPG concentrations and triggers the fan and buzzer when dangerous levels are detected, ensuring timely mitigation of potential hazards. Key findings from the system's evaluation showed that the gas detection mechanism was effective, with the MQ2 sensor detecting LPG concentrations as low as 500 ppm and triggering the fan and alarm at 1000 ppm. The system demonstrated a response time of less than 5 seconds, and the ventilation system reduced gas concentration by 50% within the first 5 minutes of operation. The components used, including the servo motor and fan, functioned reliably throughout the testing phase. The project successfully meets its objective of responsive, and reliable LPG leak detection system. However, improvements such as enhanced sensor sensitivity, integration of wireless communication for remote monitoring, and the addition of features like automatic gas supply shutdown are recommended for future work to broaden the system’s applicability and functionality. vi