IInvenTiv-2024 ST24: Hybrid Draft Biomass Cookstove (VNIT Nagpur)

Globally, approximately 2.4 billion people, including 660 million in India, still rely on open biomass fires for cooking. This poses severe health risks, causing around 570,000 deaths annually, primarily among women and children. Inefficient and incomplete biomass cooking is also a significant source of deforestation and consequent climate forcing. In response, a novel hybrid draft concept has been introduced to biomass cookstoves, reducing CO and PM2.5 emissions. Unlike existing models, this stove can burn solid biomass fuels in their natural form, eliminating the need for pre-processing. Equipped with an affordable fan power system, it achieves Tier 4 exhaust emissions and over 25% efficiency. The design, developed through modern experimentation and statistical techniques, incorporates tangentially injected forced secondary air and optimized primary air. This optimised stove design ensures uniform performance across varying fuel stick parameters, fuel inlet ratios, and pot diameters, contributing to a safer and more efficient cooking experience.
Present TRL: 6
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