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Manual Washing Machines - Coggle Diagram
Manual Washing Machines
Requires water
Water temperature
Does cold water clean as effectively as hot water?
How much water?
Does machine type affect water consumption?
does the amount of water vary by process in the washing cycle?
Should be activated by hand or foot
Advantages of Hand powered?
Advantage of Foot powered?
What mechanism?
Tumbling?
Agitating?
Should be portable
Weight considerations
Materials?
Assembly considerations
Number of connections?
Number of fasteners?
Size considerations
What is too big to transport?
Should be stable
Rotational imbalances?
Weight placement on support?
Tipping?
Sustainable
Easy to maintain
Number of parts?
Resistance to wear?
Lifetime of parts?
Easy to recycle
Materials?
Reusability?
Durable
Strength
Can the machine support the weight of 5kg + water?
Centrifugal force
Hoop pressure?
Longitudinal Pressure?
Weight
Bending?
Shearing?
Toughess
Resistance to being broken
Torsional stress?
Materials?
Hardness
ability to resist surface deformation
What kind of wear do we expect from washing clothes?
What kind of wear to we expect from transportation?
What kind of wear do we expect from the operating environment?
Ergonomic
Comfortable
Seated?
Distance from operator?
Ease of use
50th percentile human
Safety
Efficiency
Energy Efficiency
Input power to Number of rotations?
Weight to power efficiency
Water efficiency
Water to clothing ratio?
Number of washing cycles?