Veggie ggie W Washer r Pro Proble lem: Ineffic icie ient V - - PowerPoint PPT Presentation

Veggie ggie W Washer r

Pro Proble lem: Ineffic icie ient V Vege getable le C Cle leanin ing M g Method d

¡ Handwashed ¡ Wasted Water ¡ Long Processing

Time

Ø Opportunity:

Artesian well resource

Marke rket Op Opport rtunit ity

¡ Community Based Farms

l Community Supported Agriculture Farms l Urban Community Gardens

¡ Approximately 2000 Community

Based Farms in the US

Cle leanin ing R g Requ quire irements

¡ 8 m/s exit velocity ¡ 15 second time to

clean

¡ Uses 1/5 gallon of

water

Our Sketch Model

¡ 12 1/16” diameter

jets

¡ ~1 minute wash ¡ ~ 3 gallons/minute

Testing Results

¡ Higher Velocities

• vs. Coverage Area

¡ Multiple angled

jets required

¡ Testing was

successful!

Future Direction

¡ Create a rotating multi-directional

cleaning station

¡ Optimize jet size, shape, and

location

Clean!

Sourc rces

¡ Lass, Daniel, et al. "CSA Across the Nation: Findings from

the 1999 CSA Survey." Center for Integrated Agricultural Systems, College of Agricultural & Life Sciences, University of Wisconsin, Madison. October 2003.

Specif ific icatio ions

¡ 5 min Wash at 3GPM consumes 15 gallons

• f water

¡ Exit velocity ~ 8m/s ¡ To get the same exit velocity with

increased flow rate (100GPM) we could make 400 nozzles.

¡ Specifications:

l Dimensions: 16’ x 16” x 13.5” l Volume Capacity: 118in³ l Nozzles: 12 at 1/16” Diameter