Drying+Techniques

=Early Experimentations= Home

Preliminary Decision Matrix:

 * [[image:appropriatetechnology/Design Matrix.JPG caption="Design Matrix.JPG"]] ||

None of the drying methods really stood out as the best for us after making this decision matrix, so we decided to run simple tests of all of them.

Wringing Squeeze Rollers

 * [[image:https://lh6.googleusercontent.com/VwwMFb_5HLQvo8GURCzfbvrhK-OUybRdPjF1bmTKPtvyzhNBYulAIY8-s70CYwASSNjDsJn51vQiulbVNtJ1I4lDYL6WVC_KeW5-xW4onnUP55mDHt_2zLe8 width="480" height="360" caption="Annamarie uses a rolling pin to squeeze water out of a wet shirt."]] ||

The squeeze roller method only removed about 32% of the water from the shirt, while wringing by hand removed about 45% of the water using the same amount of effort.

Calculations: Squeeze Roller (.312 lbs water removed / .97 lbs total water in shirt initially) x 100 = 32% of water removed Hand Wringing (.472 lbs water removed / 1.056 lbs total water in shirt initially) x 100 = 45% of water removed

Squish Method with Buckets

 * [[image:https://lh4.googleusercontent.com/aJedaHJttW_FJj6DheWczWY7l4zeT2YQG--JQJuYCaxQvVdMds67BFKCzULysHBU3DqseFFhhlyfdND_kQTcp_ACHjYHRSm5rdP2sRdtGSi8i03ScvF1FrGh width="320" height="567" align="center" caption="Cristy stands on a white bucket to squish the water out of some clothing. Clothes are wedged in between the white bucket and the orange bucket. The orange bucket has holes in it to let water through."]] ||

The squish method only removed about 25% of the water from our two shirts and six rags, while wringing by hand removed about 46% of the water. Wringing by hand took more effort but was clearly more effective.

Calculations: Squish Method (1.052 lbs water removed / 4.17 lbs total water in clothes initially) x 100 = 25% of water removed Hand Wringing (1.94 lbs water removed / 4.25 lbs total water in clothes initially) x 100 = 46% of water removed