MUMBAI, India, Sept. 28 -- Intellectual Property India has published a patent application (202621096023 A) filed by Dr. D. Y. Patil Institute Of Technology, Pimpri, Pune - on August 08, 2026, for Hybrid Cooking Stove For Simultaneous Cooking And Power Generation.
Inventors include Dr. Chandrika Wagle; Shinde Om Vilas; Shende Minal Kewalram; and Jadhav Gaurav Tanajirao.
The application for the patent was published on September 25, 2026, under issue no. 39/2026.
Abstract: The present invention relates to a hybrid biomass cooking stove system integrated with thermoelectric power generation, designed for simultaneous cooking and electricity production in rural, remote, and off-grid regions. The invention utilizes locally available biomass fuels such as firewood, charcoal, wood pellets, crop residues, coconut shells, and other agricultural waste materials as the primary energy source. These biomass materials are combusted inside a specially designed high- efficiency combustion chamber to generate thermal energy for cooking purposes while also enabling recovery of waste heat for electrical power generation. The combustion chamber is constructed using heat-resistant materials and is designed to ensure efficient airflow and complete combustion of biomass fuel, thereby reducing smoke emission and improving fuel efficiency. During combustion, the heat generated is transferred to a thick steel wall or thermal conduction plate that acts as an intermediate heat transfer medium. To stabilize and store the thermal energy, a thermal oil block or heat-retention chamber is incorporated into the system. The thermal oil absorbs excess heat and maintains a relatively constant temperature, thereby ensuring continuous and stable thermal energy supply even during fluctuations in combustion intensity. The stored thermal energy is subsequently supplied to a thermoelectric generator (TEG) module mounted strategically between the heated surface and a cooling arrangement. The thermoelectric generator operates on the principle of the Seebeck effect, wherein electrical voltage is generated when a temperature gradient exists between two sides of the thermoelectric module. The hot side of the TEG module is connected to the thermal storage section, while the cold side is connected to a heat dissipation mechanism. Due to the maintained temperature difference across the module, direct current (DC) electricity is continuously generated without the use of moving mechanical components.To sustain efficient thermoelectric conversion, the system incorporates an air-cooled heat sink assembly on the cold side of the TEG module. The heat sink may include aluminum fins, cooling fans, or natural convection channels to dissipate heat effectively into the surrounding atmosphere. Maintaining this thermal gradient significantly improves the electrical conversion efficiency and ensures stable power generation during stove operation.
Disclaimer: Curated by HT Syndication.
