DEVELOPMENT OF SMART COOKING STOVE: HARVESTING ENERGY FROM THE HEAT, GAS LEAKAGE DETECTION AND IoT BASED NOTIFICATION SYSTEM

Abstract

The design and implementation of smart cooking stove with safety features has been discussed in this paper. To increase the efficiency of the conventional cooking stove, an energy harvest system from cooking heat has also been proposed in this research work. Heat absorbing body and Thermoelectric Cooler (TEC) module are used for this purpose. Heat is absorbed to generate power by using seebeck effect through TEC module. Generated power can be stored in a battery which can be delivered to the load. Sensor based safety feature has been implemented which can detect the leakage of gas and notify the user through mobile message using an IoT server. 14V has been generated from the cooking heat using the TEC module from this initial prototype.

Existing System

MQ-6 gas sensor, Alarm

Proposed System

A temperature difference between two points in a conductor or semiconductor results in a voltage difference between this two points. By using this theorem, a gas stove module is designed from which temperature difference is created for hot and cold side. For hot side the heat is collected from the heat used in cooking purpose and for cold side the heat sink is used to cool the module. Thermoelectric cooler module is used in the middle of the temperature difference. Voltage will be generated by the temperature difference from both side of the TEC module. From the temperature difference of thermoelectric generator voltage is produced and stored in the battery. DC-DC buck converter is used to provide different amounts of required power supply to the system. In safety feature gas sensor, NodeMCU and buzzer are used. Safety feature and load receives power from stored energy. If gas sensor senses any leakage of LPG, it will give alarm through buzzer and a send short message to user via NodeMCU.

Architecture

BLOCK DIAGRAM