Entries by Kim Still

Meeting the World Health Organization Emission Rate Targets

Reducing/removing smoke from the kitchen improves health. Adding a chimney is one recommended solution. In 2014, the World Health Organization (WHO) published intermediate and final indoor air guidelines for vented and unvented biomass cooking stoves. Their strong recommendation directed governments and implementers to advocate technologies and fuels that are proven to protect health. The WHO […]

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Product Development

General Manager Sam Bentsen is happy about some LEMS test results. Why test a stove? Most of the time, our lab uses testing for product development. If we did not test a stove prototype we would be guessing whether it met expectations. Testing in the lab gets us ready for the field testing of prototypes. […]

The Oorja Forced Draft TLUD: A Different Approach

Testing the Oorja Stove under the LEMS hood. There are many forced draft TLUDs that are quite similar to Dr. Tom Reed’s 2001 version, the WoodGas stove. The Oorja stove can be about as clean burning but has several obvious differences: a high mass refractory ceramic combustion chamber, much bigger secondary air holes, and high […]

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Rocket Stove Sterilization for Hospitals

Fred & Lise Colgan, from InStove An All American Autoclave Fred and Lise Colgan created InStove, manufacturing and distributing institutional stoves initially designed by Dr. Larry Winiarski. They developed and sold large Rocket stoves that cooked food, sterilized medical equipment, and pasteurized water. The autoclave, sold by Wisconsin Aluminum Foundry, works like a big pressure […]

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New Climate Change and Biomass Combustion Study Wins Osprey Foundation Support

Aprovecho Research Center is pleased to announce that it has just been awarded a $50,000 grant from The Osprey Foundation in support of expanding research into the connection between biomass combustion and climate change. To date, a handful of lab and field studies have resulted in relatively little information on how stove/fuel interventions could impact emissions. […]

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Ten-fold Increase in Carbon Offset Cost Predicted

Prices of carbon credits used by companies to offset their emissions are currently low, due to an excess of supply built up over several years. According to recent research at the University of London, without the excess supply, prices would be around $15/tCO2e higher, compared to $3-5/tCO2e today. (tCO2e means tonnes of carbon dioxide equivalent, “carbon […]