A LPG Leak Alert with Shut-off Device

Abstract

The general objective of the project development study was to develop an LPG Leak alert with Shut-off Device. It was mainly developed to help prevent fire accident and explosion. Through using the Arduino technology, the device, which was constructed from locally available materials, can automatically shut off the flow of the methane gas from LPG and notify the users when gas leakages are detected through sending an SMS. Equipped with sensors and solenoid valves, the gas leak detector with automatic shut off process became possible. Moreover, it has LCD to display the value of gas in the air, and when the valve shuts off, it sends an SMS message to the users and the status of the device. The device can be battery-operated which makes it eco-friendlier, effective, usable, and efficient. LPG Leak Alert with Shut-off Device was designed for house owners, industries, factories, and vehicles. It underwent different stages of development including planning, data gathering, designing, constructing, testing and improvement, and evaluation. The developed prototype was tested in terms of functionality, usability, and reliability to ensure the effectiveness and preciseness of the device. It was evaluated by the experts and appropriate evaluators through the five criteria namely accuracy, effectiveness, efficiency, functionality, and safety. The results of the evaluation from the experts and end-users showed that the project performs its functions and purpose. The project obtained an overall mean of 4.47 and was evaluated as "Very Good" based on the findings of the evaluation conducted which signifies that the project met the objectives of the study.