17 items | 19 visits
Pannir selvam's List: videobioenergy
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May 20, 08
Yes, you read it correctly: The street lights in the Indian town of Thiruneermalai are run on digested curry. As National Geographic describes it, the human waste from an area housing complex collects in a sump, where the methane gas produced by the "sludge" is used to operate a generator. This biogas produces 3,000 watts of electricity daily, enough to keep the town bright at night. And you thought ovens running on garbage were gross. A friend who lived there this past spring tells me it never smelled bad, but then again, he's been known to generate a fair share of biogas himself. (Just kidding, Gelf!) [National Geographic]
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May 21, 08
Uso Eficiente de la biomasa en Llanquén
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May 26, 08
com/showletter.jpg/showletter-medium
gpecufrn2002 -
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Jul 21, 08
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Output
A few kW for 4 to 8 hours with an air door opening 20 to 30 mm. The burn rate increases near the end of the sawdust charge, as the burning core expands out to reach the inner container walls. Up to 7 kW can be produced, but at this output the case glows red-hot, so inflammables must be kept well away, and the fuel charge does not last long.
Figure 2: Removable inner bin with hole through to air chamber below (H Bland)
[top] [end]Operation
The heater comprises two concentric bins. The removable inner bin has a hole through the bottom to the air chamber below. This allows hot gases to be drawn upwards through the hole to where combustion occurs. The hot gases are then drawn downwards between the inner and outer walls of the heating stove, providing good heat exchange to the room as they pass between the two chambers before passing out of the room through a flue (Figures 1 & 2).
[top] [end]Fuel range
Sawdust is best. Shavings or chip-pings will work provided they do not collapse down the airway. They work better mixed with sawdust, but have the effect of making it burn faster and hotter. -
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Aug 01, 08
Freshwater Fish Pond Culture and Management by Marilyn Chakroff -- A comprehensive guide to planning, constructing, and maintaining small- scale warm water fish and pond operations. A valuable reference manual. Fully illustrated. 196pp
http://www.cd3wd.com/cd3wd_40/vita/fishpond/en/fishpond.htm
Gardening with the Seasons by Harlan H. D. Attfield -- Provides guidelines for vegetable gardening year-round. Useful in any tropical climate. Illustrated. 72pp
http://www.cd3wd.com/cd3wd_40/vita/gardense/en/gardense.htm
Grain Mill for Home Use by Walter B. Booher -- Easy to build wooden grinder for corn, wheat, and other grains. (A technical bulletin) 11pp
http://www.cd3wd.com/cd3wd_40/vita/grainmil/en/grainmil.htm
Gully Control and Reclamation by Robert D. Flannery -- How to stop gully formation, and reclaim eroded soil. (A technical bulletin) 26pp
http://www.cd3wd.com/cd3wd_40/vita/gulyrecl/en/gulyrecl.htm
Hand Operated Clothes Washer -- Two simple clothes washers are outlined in this Technical Bulletin. Both washers are easy to construct with readily available materials, and should help simplify washday chores.
http://www.cd3wd.com/cd3wd_40/vita/handwash/en/handwash.htm
Hand Papermaking -- In many areas of developing countries paper is scarce. Rural schools may not have enough paper for their students and market goods may be wrapped in old newspapers if at all. But paper can be made in small shops in small quantities. Access to electricity makes some of the steps easier, but is not absolutely necessary.
http://www.cd3wd.com/cd3wd_40/vita/papermak/en/papermak.htm
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Feb 04, 11
videobiomass, green brazilian ,releconomica, docs, analise . metanol,story
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