ORANGE TEAM ENERGY EFFICIENT REFRIGERATION

VACCINE REFRIGERATOR OVERVIEW OF IDEA: One in four children born each year does not receive proper immunization Three million of these will die due to vaccine-preventable diseases Lack of immunization causes ~8,000 deaths a day What it is -Also, varying forms of transportation available in different countries: -cars/vans -motorcycles -camels What are the major issues and how we are solving them

VACCINE REFRIGERATOR APPROACH: Existing vaccine refrigerators: Marginally portable (need wheels or animal to transport) Use high cost solar cells and need battery replacement Our idea: Backpack refrigerator Continuous power generation What it is -Also, varying forms of transportation available in different countries: -cars/vans -motorcycles -camels What are the major issues and how we are solving them

VACCINE REFRIGERATOR What it is One in four children born each year does not receive proper immunization- 3 million of these will die due to vaccine-preventable diseases. Lack of immunization causes ~8,000 deaths/day -Also, varying forms of transportation available in different countries: -cars/vans -motorcycles -camels Description of all the modules and what they do How they fit together What are the major issues and how we are solving them

VACCINE REFRIGERATOR TECHNICAL FEASIBILITY: MARKET: COP ~ 1.5 Power input = 3W (comes to ~56 min. pumping per day) Time to cool air100F - 38F ~ 20sec. pumping Target weight of backpack < 30lbs. MARKET: Non-profit organizations that immunize villages and communities in the third world by going door to door. $30,000 per year: average amount spent by a developing countries on cold chain supplies Tech details: Max hiking weight (comfortable) ~45lbs Assume: sustainable power output pedaling - 60W volume of fridge - .03m3 heat loss - 3.27 W surface area - .32 m2 energy to cool - 1141J