Space-probe technology to generate electricity from biomass-burning stoves?

We can’t wait to see how this ends up!

New Cookstove Attachment Uses Loudspeaker Parts to Turn Waste Heat Into Power

by Rob Goodier, 03/30/11 as published in Inhabitat
This innovative new cookstove attachment solves two problems for off-grid homes: It turns the stove into a power generator and it improves kitchen air quality at the same. The attachment is a thermoacoustic generator based on a technology that NASA has tested for propelling space probes, but built with cheap parts, including an off-the-shelf loudspeaker.
The makeshift attachment uses waste heat from the stove to make a soundwave inside a resonator, which it then runs through a loudspeaker working in reverse to convert the sound into electricity. It’s a prototype now, but the goal is to make a model that generates 10W and costs about $25.
The stove is designed to work with most biomass-burning cookstoves, and part of the electricity that it generates powers an internal fan that blows smoke back over the flames to consume most of the pollutants.

4 thoughts on “Space-probe technology to generate electricity from biomass-burning stoves?”

  1. Thanks for this its timely, wonderful lets join forces and save the worlds future is in our hands.
    How best can we get this technology demonstrated to our communities in an energy poverty sate.
    Do i need to pay for this, who do i pay .
    Thanks once again.
    Richard Kizito
    Director
    ATE

  2. Dear Richard,
    The story contains a link to a larger story with some contact info. Unfortunately, it seems the technology is still being developed and is not yet ready for commercial deployment.
    Regards,
    Kim

  3. Dear Sir/madam
    Please kindky show me more about this technology and place to order parts/equipment Then I can help my peoples in the development country.
    Tks very much for yr consideration

    Best Regards
    Ronald Khau

    1. Dear Ronald,
      Thank you for writing. We don’t have any additional info other than the information published in the article. I suggest you try to contact the people mentioned directly.
      Good luck!
      — The Charcoal Project

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