Hyven is a low-cost, low-tech, on-demand hydrogen cooking oven designed for deep decarbonization. It eliminates fuel storage and generates hydrogen directly from water through electrolysis.
Produces hydrogen and oxygen in stoichiometric ratio at room temperature and pressure. The membrane-free design reduces cost and maintenance. The electrolyzer has operated continuously for 6–7 years with ~66% electrical efficiency, demonstrating durability and reliability.
Engineered specifically for hydrogen combustion, ensuring flame stabilization, uniform heat distribution, and prevention of flashback.
The generated H₂–O₂ mixture may contain minor moisture, which is removed using a stainless-steel drying column (vacant or silica-packed). The dry gas is then premixed with controlled air to enable lean combustion, reducing flame temperature and suppressing NOx formation.
In pure H₂–O₂ mode, the flame is nearly invisible but stable, with burner temperatures reaching 900–1200°C and scalable up to 1300–1400°C. For visible flame operation, a hydrocarbon enrichment tank introduces trace acetone or bioethanol (<10–30%) into the airstream before mixing. This produces a stable pale blue flame while maintaining negligible emissions.
Stabilizing a stoichiometric H₂–O₂ mixture is technically challenging due to high flame speed, flashback risks, and potential explosion under storage. Hyven eliminates H2 storage and uses lean premixed combustion combined with a porous burner architecture to prevent flame propagation and ensure stability.
Laboratory experiments using controlled air and hydrocarbon injection (via mass flow controllers and syringe pumps) sustained continuous flame operation for 3 hours. Emission monitoring showed zero soot, ultra-low NOx (~0.2 ppm), and low CO (~6 ppm).
The system currently demonstrates:
These results confirm strong technical feasibility and readiness for MVP development.
Discover Et-hyven’s range of hydrogen-powered ovens engineered for clean, efficient, and scalable industrial heating.
Tailor-made hydrogen heating solutions developed to match unique industrial processes, space constraints, output demands, and efficiency goals.
Ideal for commercial environments requiring clean energy heating, offering compact design, stable performance, and reduced operational energy costs.
Designed for heavy-duty industrial applications, delivering consistent hydrogen-based heating with superior efficiency, safety controls, and long-term.
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Answers to common questions about our hydrogen-powered ovens, safety standards, customization, and industrial applications.
Hyven addresses India’s heavy dependence on imported LPG and natural gas, which creates economic burden and weakens long-term energy sovereignty. It also targets reduction of greenhouse gas emissions from the cooking sector while preserving culturally familiar flame-based cooking systems.
Hyven generates hydrogen directly from water through a membrane-free electrolyzer that produces hydrogen and oxygen in stoichiometric ratio at room temperature and pressure, eliminating the need for fuel storage.
No. Hyven eliminates hydrogen storage and generates hydrogen on demand. This reduces storage-related risks such as flashback and potential explosion.
Laboratory emission monitoring showed zero soot, ultra-low NOx (~0.2 ppm), and low CO (~6 ppm) emissions during continuous flame operation.
Yes. In pure H₂–O₂ mode the flame is nearly invisible but stable. For visible flame operation, trace acetone or bioethanol (<10–30%) can be introduced to produce a stable pale blue flame while maintaining negligible emissions.