small red tile design brief
TRANSCRIPT
by
SMALL RED TILEMEMEID
MEIDID
jordan edwardsisaac lockmanpeter nguyenmarc paréjimmy votyler wilson
biogasification stove project proposal
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Providing safe & affordable cooking heat to rural Nicaraguans
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GLOBAL CHALLENGE
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what kinds of health/societal/environmental issues go along with stoves?
one third of the world’s population cook over a open flame
open fires produce a lot of smoke
approximately 1.4 million people die per year from disease related to indoor air pollution (3 people per second)
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GLOBAL CHALLENGE
challenge opportunity local intent patents precedents problems approach conclusion
what kinds of health/societal/environmental issues go along with stoves?
time and money spent gathering fuel open fires are one of the biggest sources of greenhouse gas emissions in the world
deforestation from gathering fuelburn danger from exposed flames
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GLOBAL CHALLENGE
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the 8 millennium development goals
the Millennium Declaration promotes a comprehensive approach that tackles a broad range of challenges simultaneously.
by 2015, the world aims to have achieved eight goals for combating poverty, hunger, disease, illiteracy, environmental degradation and discrimination against women.
improved cook stoves address all 8
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OPPORTUNITY
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contributing to make cooking safer
Amigos for Christ has 160 Nicaraguan families in need of cook stoves in Villa Cantalina
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LOCAL
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the lifestyle of a typical Nicaraguan family
men are often not in the house, women are responsible for all of the cooking as well as childcare in 5-6 person families
families are usually very poor ($1/day) and have no access to electricity
they currently cook over wood fires, but the wood is running out
there is very little access to alternate fuel sources except waste rice husks
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DESIGN INTENT
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Design a stove that runs on rice husk that is safe and culturally accepted
our goal to overcome these challenges
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PATENTS
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what is already out there
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PRECEDENTS
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through the eyes of a ME
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PRECEDENTS
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through the eyes of an ID
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PRECEDENTS
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using and operating the stoves
OPEN LOAD POWER LIGHT CLOSE
IGNITE COOK REOPEN DUMP DOUSE
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PRECEDENTS
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using and operating the stoves
LOAD LIGHT COOK TAP
JIGGLE CLEAR DOUSE
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PROBLEMS
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not everthing is perfect
BATCH CONTINUOUS
this design needs a battery to operate. most people in nicaragua cannot afford batteries
approximately every 30 minutes, the flame goes out. therefore the batch needs to be dumped every 30 minutes
this design requires constant tapping to produce an even flame throughout the cook time. the flame is also relatively unstable
constant refilling is required approximately every 5 minutes to keep an even flame. the char also needs to be removed during this time span
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APPROACH
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how we’re going to overcome this overall challenge
Heat
Starting/StoppingAppropriate
ManufacturingTechniques
AppropriateMaterials
Cooking
Produce Heat
Support Cookware
Provide Control OverCooking Process
Provide Stability
ProvideProtectionfrom Heat
Encourage Safety for End User
Load/UnloadFuel
Cleanable
Fixable
Be Maintainable
Convert Rice Husk Fuel
to Biogas
Combust Biogas
Lower Emissionsto Safe Levels
Priced for Market ConsistentProvide Su�cientCooking Surface
Be Easy to Operate
FunctionsConstraints
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APPROACH
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our preliminary specifications
low cost
clean, controlled flame
fits into the culture/environment
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CONCLUSION
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what we’re reaching for
This product aims to provide safe & affordable cooking heat to rural Nicaraguans
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CONCLUSION
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what we have done so far