Alternate Drying Washing Machine
Inflatable air bag
Alternate drying mechanism in automatic washing machine
Product Design Lab 1
Group 5
Pre-requisites
•
•
•
•
•
•
Easy operation
Safe
Greater power and water efficiency
Reasonably priced
Substantial drying of clothes
Minimal wear of clothes
Patented in 1957, the mechanism alongside uses a mechanical piston to squeeze water out of the clothes
Brainstorming & categorization of modules
Mechanical
Thermal
Chemical
Electrical
Mechanism similar to iron pressing
Blasting hot air on the clothes Reducing surface tension of water to enable faster drying
Electrostatic attraction of water molecules
Using vacuum (or low pressure) for suction of water
Blowing a vortex of warm dry air
Using deliquescent materials for absorption of water
Rotation at higher rpm Using inward mechanical pressure on clothes in the form of plates
Concept Screening
Idea
Spatial feasibility (fitting)
Financial feasibility Feasibility with energy
Theoretical feasibility Manufacturing feasibility Efficiency
Summing
Up
Iron pressing
(-)
(-)
(-)
(-)
(-)
(-)
-6
Electrostatic attraction (+)
(0)
(+)
(-)
(0)
(0)
+1
Reducing surface tension
(+)
(0)
(+)
(0)
(-)
(0)
+1
Vacuum
(-)
(-)
(-)
(-)
(0)
(0)
-4
Deliquescent materials (+)
(0)
(0)
(-)
(0)
(0)
0
Hot air blast
(0)
(0)
(0)
(+)
(+)
(+)
+3
Rotation at higher rpm
(+)
(0)
(0)
(-)
(+)
(+)
+2
Mechanical pressure by plates (0)
(+)
(+)
(0)
(-)
(-)
0
Vortex of warm dry air
(+)
(-)
(0)
(-)
(0)
(+)
0
Concept Selection
• Mimicking squeezing action using
Mechanical Pressure
• Hot Dry Compressed Air to absorb moisture content (provided via compressor) Higher
RPM
Applying pressure Dry hot air
•
Alternate drying mechanism in automatic washing machine
Product Design Lab 1
Group 5
Pre-requisites
•
•
•
•
•
•
Easy operation
Safe
Greater power and water efficiency
Reasonably priced
Substantial drying of clothes
Minimal wear of clothes
Patented in 1957, the mechanism alongside uses a mechanical piston to squeeze water out of the clothes
Brainstorming & categorization of modules
Mechanical
Thermal
Chemical
Electrical
Mechanism similar to iron pressing
Blasting hot air on the clothes Reducing surface tension of water to enable faster drying
Electrostatic attraction of water molecules
Using vacuum (or low pressure) for suction of water
Blowing a vortex of warm dry air
Using deliquescent materials for absorption of water
Rotation at higher rpm Using inward mechanical pressure on clothes in the form of plates
Concept Screening
Idea
Spatial feasibility (fitting)
Financial feasibility Feasibility with energy
Theoretical feasibility Manufacturing feasibility Efficiency
Summing
Up
Iron pressing
(-)
(-)
(-)
(-)
(-)
(-)
-6
Electrostatic attraction (+)
(0)
(+)
(-)
(0)
(0)
+1
Reducing surface tension
(+)
(0)
(+)
(0)
(-)
(0)
+1
Vacuum
(-)
(-)
(-)
(-)
(0)
(0)
-4
Deliquescent materials (+)
(0)
(0)
(-)
(0)
(0)
0
Hot air blast
(0)
(0)
(0)
(+)
(+)
(+)
+3
Rotation at higher rpm
(+)
(0)
(0)
(-)
(+)
(+)
+2
Mechanical pressure by plates (0)
(+)
(+)
(0)
(-)
(-)
0
Vortex of warm dry air
(+)
(-)
(0)
(-)
(0)
(+)
0
Concept Selection
• Mimicking squeezing action using
Mechanical Pressure
• Hot Dry Compressed Air to absorb moisture content (provided via compressor) Higher
RPM
Applying pressure Dry hot air
•