Jatropha Seed Cooking Stove: Development and Promotion
Jatropha Seed Cooking Stove: Development and Promotion Jatropha Seed Cooking Stove: Development and Promotion
ETHOS Conference 2011Jatropha Seed CookingStove: Development andPromotionJonathan OttoDavid OttoDavid CovertPamoja Inc, Chester, VTJCS, Seattle, WA
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ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong><strong>Stove</strong>: <strong>Development</strong> <strong>and</strong><strong>Promotion</strong>Jonathan OttoDavid OttoDavid CovertPamoja Inc, Chester, VTJCS, Seattle, WA
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Small scale charcoal ‘burning’
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Charcoal making operations
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Charcaol making, eastern Ug<strong>and</strong>a
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Charcaol making, the larger view
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Charcaol making that pollutes the entire valley
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Charcoal for sale by the side of the road
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Fetching firewood, women’s daily chore
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Firewood for sale
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Firewood heading to market
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Typical 3 <strong>Stove</strong> cooking arrangement
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Unvented indoor cooking area
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Unvented cooking area
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>‘Of course I know it’s not healthy, but what choice do I have?’
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Immature seed pods
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong><strong>Seed</strong> pods as they mature
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Dry seed pods ready for harvesting
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Is in a tree or a shrub?
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Young hedge, in need of trimming
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Young hedge about one year after planting
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Young hedge about 18 months old, with drip irrigation
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Pruning stimulates more flowering near end of new growth
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>L<strong>and</strong> reclamation with <strong>Jatropha</strong> contour planting
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Matooke plantation with <strong>Jatropha</strong> <strong>and</strong> vanilla
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong><strong>Jatropha</strong> supporting vanilla vine
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Vanilla tendril attached to <strong>Jatropha</strong> branch
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong><strong>Seed</strong>lings ready to be planted out
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Plantation … a questionable practice
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>R Henning’s count of <strong>Jatropha</strong> projects in 2008
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Center for Research on Energy <strong>and</strong> Energy Conservations (CREEC) lab at Makerere University,Kampala Ug<strong>and</strong>a
ETHOS Conference 2011<strong>Jatropha</strong> supporting vanilla vineCREEC lab with Aprovecho PEMS test equipment
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>CREEC lab; testing an earlier model of the JCS stove
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>CREEC lab Aprovecho PEMS test equipment
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Water temperature check at CREEC
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Sadaam, the master tinsmith with a skirt; price: $8.79
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Prototype stove with thermocouple temperature sensors
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong><strong>Cooking</strong> pot sets into skirt
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Prototype stove: body <strong>and</strong> skirt
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>‘Sufria’ cooking pot being inserted in stove skirt
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Prototype stove ready to be top lit
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Combustion chamber
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>gasification!
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Internal parts
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Primary air inlet holes <strong>and</strong> central duct, secondary air inlet
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Primary air inlet holes <strong>and</strong> central duct, secondary air inlet
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Riser with secondary air inlet holes
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Achievements thus far:• Have met boiling, simmer <strong>and</strong> emissions benchmarks.• Achieved temp. of 800C, 15 cm above combustion zone.• Temperature in that zone is stable for 20 minutes.• Flame in combustion zone is “flat”, < 10 cm high.• Mixing of primary air with secondary air is very good.
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>PEMS graph of the last burn at CREEC, November 2011Green, CO 2Red, COGrey, Particulate Material
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>The combustion zone
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>• <strong>Jatropha</strong> caloric content, Dar es Salaam, 21,500 K Joule/kg• Fuel charge for representative test burn, 0.65 kg• Heat value of fuel charge, 13,975 K Joule• Heat output of stove through end of boil, 4300 K Joule8000 BTU/hr• Thermal Efficiency: 31%energy transferred to sufria <strong>and</strong> water through end of boilcf. energy in 0.65 kg jatropha.
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Anticipated tasks related to kitchen use <strong>and</strong> field testing:• Variable fuel amounts <strong>and</strong> types.More than nominal 650 g does not work!Amounts less than 500 g have yet to be tested.Other fuels or mixtures with jatropha need to be tested.• Try to achieve longer burn time with lower energy output.• Make use of charcoal combustion phase.
ETHOS Conference 2011<strong>Jatropha</strong> <strong>Seed</strong> <strong>Cooking</strong> <strong>Stove</strong>Work in progressParticulate <strong>and</strong> gas phase emission testing:• Previous version was tested with APROVECHO PEMS atMakerere University, Ug<strong>and</strong>a.• Present version will be tested for particulate <strong>and</strong> carbonmonoxide emissions with modified APROVECHO IAP in Feb.2011.• Indoor air will be monitored with APROVECHO IAP duringfield testing of JSCS in Tanzania this year.