Achievements» Multi-Fuel Portable Stoves


  1. Application :
    The portable stoves are used for cooking in smokeless condition with reduced fuel consumption and pollution. A variety of solid fuels such as wood, twig, leaf, dung cake, agricultural waste, raw coal, briquettes etc., can be burnt in the stoves at high thermal efficiency (30% to 50%) irrespective of different physical & chemical characteristics. Fuel saving is 50% over the traditional cook stoves. Portable in use, Cooking Capacity = 5 to 500 persons with different sizes of the stoves.
  2. Raw Materials:
    Mild steel sheet for fabrication of stove.
  3. Process Features:
    Fixed carbon and volatile components of the fuels burn in the corrugated grate and perforated combustion chamber of the stove respectively, with help of preheated primary and secondary air streams to obtain complete combustion with low excess air. The ash scraper helps to remove ash intermittently during burning of the high ash fuels. Otherwise ash discharges automatically from the stove. High temperature clean flame (8000C) with reduced smoke, pollution & CO2 gas is always obtained.
  4. Market:
    20 Million Unit stoves per year in India.
  5. Status of Commercialisation:
    The stove has been commercialised by National Programme of Improve Chulha of MNES, Govt. of India, KVIC, NDDB, NGOs, many state government departments etc, in India. More than One million unit stoves have been disseminated since 1990.
  6. Equipment and gadgets:
    Wielding machine, Ball press or Power press, sheet cutting machine required for production.
  7. Nature of Enterprise :
    Cottage and small scale.
  8. Project Economics :
    Capital cost : Rs.200,000/-
    Cost of production of Driers
    HARSHA (Family size) : Rs.350/-
    HARSHA (Community size):Rs.2,000/- Capacity :
    50 stoves/day
    India Patent No : 166168
  9. Technology Package:
    Detail drawings, training for fabrication.
  10. Licence Fee :
    Free of cost