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close this book Boiling Point No. 22 - August 1990
View the document STOVES - OTHER USES
View the document Other Uses of Stoves
View the document Puffing Rice
View the document Biogas Properties, Stoves and Lamps
View the document Bellerive Develops Bakery Oven for Kenya
View the document The Bakery Programme - A Successful Way of Food Commercialization
View the document Expanded Coal Utilization Project
View the document Household Cooking Fuel
View the document Company House Kitchens
View the document Keep Your Wood Dry
View the document Self-help For Forests
View the document The Clay Testing Centre for Improved Stoves in the Sudan
View the document Promotion Of The Duma Institutional Wood Stove In Tanzania
View the document "REDI" Stove Trials in Haiti
View the document Solar Box Cooker Demonstration in Somalia
View the document The Kelly Kettle
View the document Extentionists' Blues !
View the document THAI BUCKET
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"REDI" Stove Trials in Haiti

 

The following extracts from papers by W Micuta, G Rossier and E Hass of "REDI" Renewable Energy Development Institute (5 rue du Vidollet, CH 1202, Geneve, Switzerland) report on trials of their institutional stoves in Port- au-Prince, Haiti in 1989.

Haiti, once heavily forested, is now severely de-forested and the authors report that unless urgent action is taken by the government, there will be no forests left by the end of the decade and erosion already severe will soon become disastrous (see UNDP/FAO Project Documents HAI/88/009). Most of the trees cut are converted into charcoal, 85% of which is burnt in Port-au- Prince. They estimate that 10 tons of wood produce only 1 ton of charcoal (see report by G Rossier and W Micuta). Charcoal is the main fuel for domestic and community cooking and a considerable volume is used by industry.

The REDI team rebuilt 4 kitchens in schools, installed 6 stoves and trained their users. Production problems with metal stoves were studied and stove tests were carried out with the following results:

• Traditional charcoal stove with 15 litre local pot - see Fig 1

• Efficiency up to boiling - 20%, specific consumption 50 g. charcoal/kg boiling water, mean power output -2 .25 Kw. Graph I

• REDI - multi-ful and multi-pot stove with 15 litre local pot see Fig 2

• Efficiency up to boiling - 49.7%; specific consumption - 463 g. wood/kg water mean power output - 2.9 Kw Graph II

• -REDI - SO litre multi-fuel stove - see Fig 3

• Efficiency up to boiling - 45.5%; specific consumption 54.2 g. wood/kg water mean power output - 5.6 Kw. Graph III

 


FIGURE Graph I

Note - The tests were made with a coed stove start, thus measuring the heating up of the stove bodies. Drawings of the stoves are not shown but the 15 litre REDl stove has a single mild steel wall and has a chimney. The 50 litre stove has double steel walls separated by 10 cm of fine grave/ and has a chimney.

In conclusion, REDl's team is certain that it is quite possible to avoid the ecological disaster now threatening Haiti, providing that the foreign technical assistance is used efficiently for the local production, on a large scale, of fuel efficient sheet metal stoves of various kinds and of cooking gear, and for the introduction of fuels other than firewood. Technical assistance should be particularly applied in industrial activities for intensifying reforestation in various ways. This, of course, could not be done without the wholehearted participation, support and cooperation of the Haitian Government.


Graph II


Graph III


Fig 4 -Expanded view of 501 MF stove