MUMBAI, India, July 24 -- Intellectual Property India has published a patent application (202631079173 A) filed by National Institute Of Technology Jamshedpur on June 26, 2026, for Passive Airflow Biomass Stove For High-Efficiency Combustion And Its Operational Method Thereof.
Inventors include Saroj Kumar Sarangi; Ramesh Chandra Nayak; and Abhishek Sharma.
The application for the patent was published on July 17, 2026, under issue no. 29/2026.
Abstract: The present invention generally relates to a high-efficiency, passive-airflow biomass stove designed for clean and complete combustion without external power. The stove features a triple-walled concentric body with integrated insulation to minimize radial thermal losses. A plurality of draft tubes, inclined at 70-80o, utilize buoyancy-driven pressure differentials to induce natural airflow. Crucially, these tubes contain circumferentially staggered, triangular cross-sectional obstruction members that disrupt laminar flow to generate successive turbulent vortices and helical motion. This geometry increases air residence time and promotes superior pre- heating and air-fuel mixing. The airflow is manually regulated via rotatable butterfly valves at the tube inlets. By integrating specific tube inclination, internal triangular obstacles, and staged thermal insulation, the invention enhances oxygen penetration into the fuel bed. This structural implementation results in significantly increased flame temperatures, reduced smoke generation, and optimized thermal efficiency for rural and semi-urban cooking environments.
Disclaimer: Curated by HT Syndication.
