Thermoelectric Generator Powered Particulate Matter Emission Monitoring System for Cleaner Biomass Cookstoves

This paper focuses on the design, development and testing of a thermoelectric generator (TEG) powered particulate matter emission monitoring system (TPPEMS) for a biomass cookstove. TEG a solid-state device that works based on the Seebeck effect which can directly convert heat energy into electricity. A cookstove is a combustion device which liberates lot of heat energy during cooking. In the developed design of the TEG-integrated forced draft biomass cookstove, the waste heat energy is utilized to generate electricity using a thermoelectric generator, and this power is used to operate the emission monitoring system and a 12V DC-DC cooling fan. Particulate matter sensor PMS7003, MAX6675 and ESP32 Dev module are utilized to develop the TPPEMS. PM<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">10</inf>, PM<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2.5</inf>, PM1.0 emissions and temperature of hot and cold surface of TEG integrated biomass cookstove are monitored during cooking period in the kitchen room. The results prove the feasibility of using a TEG as an energy source for powering the TPPEMS and DC cooling fan for providing smokeless clean cooking. Therefore, TPPEMS would help improve indoor air quality in real time and can be used for future air quality prediction.