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 of 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: 118in ³ l Nozzles: 12 at 1/16 ” Diameter