[Stoves] Ultra-low emissions stove featured on BBC

Crispin Pemberton-Pigott crispinpigott at outlook.com
Thu Mar 30 16:19:08 CDT 2017


Dear Friends of clean indoor air

The Kyrgyz service of the BBC posted a video on their website today featuring an interview with one of the stove pilot participants. She lives in the village of AK Jul which is between Bishkek and Manas, the airport.

http://www.bbc.com/kyrgyz/media-39377945

She reported she is saving considerable fuel and that the house is significantly warmer. She is recording the fuel mass loaded for each refueling, and the temperatures indoor and out ‎several times per day. She no longer has to put on the electric heater for her baby sitting business for which she uses her livingroom, now that the heat delivery has increased so much.

All smoke has disappeared from the home. The country's chief cardiologist reports preliminary results from their winter-long IAQ measurements show PM2.5 has been reduced to the range of 10-40 micrograms per cubic metre, from levels as high as 7000.

He noted a dramatic reduction in CO from concentrations frequently above 100 ppm to barely detectable levels.

The questions put to the interviewees were about outdoor air pollution and the contribution ‎from domestic heating and cooking stoves. Investigations by Altanzul at CAU in Beijing show a drop of well over 90%, with additional research and comparatisons to be available in mid-April. The stoves are being compared using contextual test sequences developed from field observations in rural and urban areas. The different fuels are used (mostly) in different types of stoves and using different patterns.

Something interesting coming out of the current study is that the use patterns change significantly when the new products are used. These new patterns have been incorporated into the lab tests in order to get a realistic comparison as to the economic and social impacts.

A presentation will be made at the 25th Domestic Use of Energy ‎conference (DUE) in Cape Town next week describing some of the social impacts including a collection of stories emerging from the impacted villages.

Following three weeks of additional product development a new low pressure boiler that looks a great deal like a great traditional stove is being tested. Drawings are  available in the Kyrgyzstan section of the Newdawnengineering.com website (in the library/stoves).  The fuel capacity has been doubled with this Model 5.2 with the possibility of 24 hour unattended heating and water warming (on the stove top).

Altanzul reports the PM‎ emissions are about 1% (often less) of the traditional stoves in Ulaanbaatar and we expect the baseline to be similar in the Naryn, Chui and Osh region villages.

Training of producers will now be expanded, as well as training of installers using materials prepared by CAMP Alatoo, an NGO working in the high mountains. (Central Asia Mountain Project) Field testing and user feedback continues for another few weeks. We expect the air quality report momentarily.

Regards
Crispin
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