3 Market & Customer Data Purpose Customer Many people (particularly in Africa) lack oil in their diet and suffer from malnutrition and diseaseOnly 5% of peanut oil produced worldwide is imported/exported.There is a need for locally producing peanut oil.CustomerSmall-scale nut/seed oil producers worldwide, specifically in developing countriesMarket (for peanut oil and meal)49.2% of peanut processing is devoted to oil production.West Africa, China, and India are the world leaders in utilizing peanuts for crushing (combined total of 2,580,000 metric tons/year)Africa: 5,423,000 metric tons/yearAsia: 20,964,000 metric tons/year92% of India’s peanut production is all for oil.
5 Design Specifications Customer Needs/Technical RequirementsDesign AttributesIs human-poweredTreadlesCan be operated by someone who is lightweightPulley system to allow operator to lift significantly more than his/her own body weightMust generate pressures of at least 600 psiPiston with large massCan be easily constructed and repairedUses pulleys and rope (as opposed to gears) to transfer power from human to piston
6 Design Parameters Peanut Oil Extraction Hydraulic press with gauge provided by Amy SmithPressures:200 psi: onset of oil extraction800 psi: oil drips25% of peanut mass is extracted as oilVideo
7 Technical Analyses Assumptions: Requirements: Results: 100 lb. person Lift mass of 1000 lbs.1:1 lever arm ratioRequirements:10 turns on piston pulley system2 in2 of a layer of peanutsResults:Step size of 1 ½ ft.Piston travels only 2 inchesNatural hold at step transitions to squeeze out oil
8 Conclusion What we learned: Recommendations: Some methods feasible, but complicated:GearsRatchet mechanismRequired pressure is difficult to obtain using human power alone.Recommendations:Can pounding extract equal amount of oil?Is a hydraulic mechanism too intricate?