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 MetricUnit of MeasureMarginal ValueIdeal ValueActualTest ReferenceTesting Completion StatusPass/Fail
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ER1Quantity of fruit driedkg/day>8>153*T1: System PerformanceINC
This test was not attempted with more than 3 kg of Mangoes but it is capable of larger amounts
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ER2Dried Mango Moisture Contentkg moisture/kg fruit<15%<10%13.67%*T1: System PerformanceINC
From our calculations after completing the test, we were able to achieve a moisture content of 13.67%. Due to some left behind fruit residue, and accounting for errors in measurements and calculations, the realistic moisture content lies between 18% and 25%
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ER3Unit cost of deviceUS$<150<75$257T2: EconomicsFAIL
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ER4Time managing fruit drying operation beyond fruit prepmin/kg<10<54 min/kgT3: OperationsPASS
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ER5Number of operations for single drying batch after fruit prepQty<10<53T3: OperationsPASS
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ER6Manufacturing in Haiti% value added20%50%T4: ManufacturingPASS
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ER7Number of hand tools needed to install drying system onsiteQty<6<31T5: AssemblyPASS
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ER8Power or Specialized Tools RequiredQty1-200T5: AssemblyPASS
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ER9Weight of heaviest partlbs.<35<2021.6 lbsT6: Usability/SafetyPASS
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ER10Dryer kit fits on flatbed truck for transportationft<9x5x44'x1.5'x.66'
T7: Transportation/Handling
PASS
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ER11Target temperature for safely drying fruits°F above ambient2540
25.8°F above ambient
T1: System PerformancePASS
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ER12Reading level required to install and operate dryerGrade Level<20instructional videosT5: AssemblyPASS
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ER13Time for unskilled operator to fully disassemble and reassemble dryermin<90<4521 minT5: AssemblyPASS
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ER14# different materials required for custom importQty<302
T7: Transportation/Handling
PASS
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ER15Drop test height survived (in transportation state)ft>2>4>4 ftT8: DurabilityPASS
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ER16Part replacement rate% total parts replaced per year (cost)<20%<5%T9: MaintenancePASS
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ER17General maintenance frequencyactions/week<20-11 action/weekT9: MaintenancePASS
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ER18Food placed and removed without contact to ground or unsanitary surfacesQtyno contactno contactno contactT6: Usability/SafetyPASS
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ER19Survives high windmph>30>4537 mphT8: DurabilityPASS
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ER20Water drainage, time to drain liter of water from collector and chamber or have ability to shed watermin<5<1T8: DurabilityPASS
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ER21Weather such as wind, rain, and earthquakes do not damage the systemyes/noyesyesyesT8: DurabilityPASS
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ER22Ergonomic metric on loading and unloading fruit, lifting drying chamberLI.1<1<1 LIT6: Usability/SafetyPASS
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ER23Drying Rate%/day3015T1: System PerformancePASS
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ER24Fruit is safe to consumeyes/noyesyesyesT6: Usability/SafetyPASS
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AS1Rainwater RunoffVisible: y/nyyVisibleT8: DurabilityPASS
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AS2Number of safety hazardsQty000T6: Usability/SafetyPASS
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AS3Solar Flux that activates FansWatts/m^2350200250 W/m²T1: System PerformancePASS
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AS4Standard Deviation of Solar Power Across Fans at Steady StateWatts0.080.060.05T1: System PerformancePASS
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AS5Cost worth analysis#1-202T2: EconomicsPASS
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AS6Air leakageT1: System PerformancePASS
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AS7Drying chamber stand efficiencyLoad to tipT8: DurabilityPASS
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AS8Tray efficiencyWeight0.2 - 0.3 kg0.5 kg0.5T8: DurabilityPASS
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