edsgn 100 section 001 submitted by team 1: chris gosdin, marcus gergar, jeff cully, tom stewart...
TRANSCRIPT
Kenya Stove Renovation
EDSGN 100
Section 001
Submitted by team 1: Chris Gosdin,
Marcus Gergar, Jeff Cully, Tom Stewart
Submitted to funding agencies for Kenya Projects
www.iupui.edu
www.masticasphaltcouncil.co.uk
AbstractCurrent Kenyan stoves create harmful
emissions, which is leading to death by smoke inhalation. Therefore we created a stove that is a revision of the original Kenyan Jiko that will now consist of an aluminum coating shell, a 1:1 ratio of clay to non-clay, and will run on biomass fuel, wood, or charcoal. By making these specific changes, we will decrease emissions, fuel used, and cooking time.
Table of contentsDescription of Task
Problem Statement Design Specifications
Design Approach Consumer Needs Assessment Concept Generation Design Matrices
Final DesignPrototypeEngineering Analysis
Working Mechanism Cost Analysis
Summary and ConclusionsReferences
Description of TaskProblem Statement
Smoke Inhalation
Inefficient Stove Emissions
Poor Economy
No Technological Advancements
Cultural Boundaries
Reluctant to Lifestyle http://www.solutions-site.org/kids/stories/KScat2_sol60.htm
Description of TaskDesign Specifications
Decrease emissions by 50%
Decrease fuel used by 50%
50% faster cooking time
Economically viable
Appropriate for the culture
http://www.solutions-site.org/kids/stories/KScat2_sol60.htm
Design Approach Consumer Needs Assessment
Efficient
Durable
Safer Cooking System
Easy to Use
Affordablehttp://www.solutions-site.org/kids/stories/KScat2_sol60.htm
Design ApproachConcept Generation
We analyzed all of the stoves by comparing each stove to each one of the consumer needs
Envirofit Stove Cooker
http://iapnews.files.wordpress.com/2009/07/envirofit-stove2.jpg
Jikohttp://gorilla.wildlifedirect.org/files/2009/09/jiko-kenya.JPG
Smokeless Cookerhttp://
web.tradekorea.com/upload_file/prod/emp/200906/oimg_GC00024923_CA00307534.jpg
Gassifier Stovehttp://www.trailjournals.com/images/gear/bushbuddy13.jpg
Solar Cookerhttp://solarworldea.com/wp-content/themes/solarworld_v1/images/projects/solar_cooker2.jpg
Solar Heated Grillhttp://
cache.gizmodo.com/assets/resources/2007/04/solar_grill_show01_w460.jpg
Biomass fuel Wood fuel Charcoal Solar panal Smokeless Anaerobic disgestorCost + + 0 - - +Durable 0 + 0 - + -life span + 0 - + + +manufacturing ease + + + - - +emissions + - 0 + + -Effectiveness + - + 0 + 0shipping expenses + + + - - +Community impact + 0 - - - 0Pluses 7 4 3 2 4 4Minuses 0 2 2 5 4 2Net outcome 7 2 1 -3 0 2Continue yes yes yes* no no no
Jiko Fuel Matrix
Jiko Fuel Design Matrix
Aluminum coating Iron coating Copper coating Powder coatings Terne coating(zin/tin)Cost 0 - - - -Durable + + + + 0life span + - + + +manufacturing ease + - + - 0emissions 0 0 0 0 0Effectiveness + 0 + + +shipping expenses 0 0 - - -Community impact + 0 - - -Pluses 5 1 4 3 2Minuses 0 4 3 4 3Net outcome 5 -2 1 -1 -1Continue yes no no no no
Jiko coating
Jiko Coating Design Matrix
100% clay 1:1 clay/non clay 10:6 clay/non clay 6:10 clay/nonclay 100% metal PorosityCost + - + + + +Durable - + - - + -life span - + - - - +manufacturing ease + + - - 0 -emissions - 0 0 0 - +Effectiveness - + 0 0 - -shipping expenses + + + + + 0Community impact 0 + + + - 0Pluses 3 6 3 3 3 3Minuses 4 1 3 3 4 3Net outcome -1 5 0 0 -1 0Continue no yes no no no no
Clay and Metal Matrix
Clay and Metal Design Matrix
Final design
Stove Type: Jiko
Coating: Aluminum
Clay and Metal Ratio: 1:1 Clay to Non-clay
Fuel: Biomass, Wood, Charcoal
Engineering Analysis Working Mechanism
1) Place fuel on in upper chamber
2) Light the fuel1) Combustion occurs
1) Air will flow through bottom where there is a slit and door
3) Fuel burns4) Heats food in pot on top of
Jiko5) Ashes fall through holes in
clay to bottom6) Recover waste
http://alaninkenya.org/wordpress/wp-content/uploads/2008/07/jiko_na_githeri.jpg
Engineering AnalysisCost Analysis
Cheap long lasting aluminum coating – aluminum is recyclable and also is durable.
1:1 ratio of clay to non-clay – this is the most durable form of clay and it can with withstand the most heat.
Biomass Fuel – get a lot for a low cost because of its high energy generation, it is also a prevalent resource
Wood Fuel – very prevalent resource therefore cheap Charcoal – where biomass and wood are scarce,
charcoal is the cheapest substitute Business – current builders of Jiko can still produce
without going through a vigorous learning process The cost will be between 4 and 5 dollars
Summary and ConclusionsRedesigned Jiko
Social Little change
Environmental The fuel used will decrease emissions Recycled materials
Economic Within price range Sustains and provides new employment
Changes Aluminum coating will reduce rust Biomass, Wood, Charcoal 1:1 ratio of clay to non-clay
References 1. <http://www.kenya.go.ke/>.2. <http://www.hedon.info/BP16:MaterialsForMudStoves-Kenya>.3. <http://kenyaembassy.com/>.4. <http://www.state.gov/r/pa/ei/bgn/2962.htm>.5. <http://www.hedon.info/docs/
WhatMakesPeopleCookWithImprovedBiomassStoves.pdf>.6. <http://www.hedon.info/DisseminatingImprovedStovesInAfrica>.7. <http://envirofit.org/>.8. <http://lilt.ilstu.edu/psanders/juntos.html>.9. <http://w1.siemens.com/responsibility/en/sustainable/
protos.htm>.10. <http://www.solarcookers.org/>.11. <http://www.energyjustice.net/digesters/>.12. <http://www.stovesonline.co.uk/smokeless_fuels.html>.