Sketch Model Review Purple B - PowerPoint PPT Presentation

About This Presentation
Title:

Sketch Model Review Purple B

Description:

Indian PM recently stressed need to improve irrigation (September 27, 2005 - news.yahoo.com) ... Growing demand for irrigation in India ... – PowerPoint PPT presentation

Number of Views:66
Avg rating:3.0/5.0
Slides: 12
Provided by: jessic57
Learn more at: http://web.mit.edu
Category:
Tags: india | model | news | purple | review | sketch | yahoo

less

Transcript and Presenter's Notes

Title: Sketch Model Review Purple B


1
Sketch Model ReviewPurple B

2
Need Statements
  • A low-cost, practical irrigation system to
    facilitate the growth of agriculture.
  • An inexpensive power source for rural farmers.

3
Product Concepts
  • Water pump
  • Draws water up from well
  • Pressurizes water for irrigation
  • Bicycle Power Source
  • Power transmission from bicycle to gear train
  • Potential for modular attachments
  • Fly wheel stores energy

4
Competition
  • Variety of pumps already exist
  • Hand pumps
  • Foot pumps
  • ApproTEC MoneyMaker foot pump
  • Markets to East African nations
  • 38,000 pumps sold
  • No bicycle-powered pumps marketed to developing
    country farmers

5
Customer Data - India
  • Population 1.09B people
  • 110M agricultural workers
  • 100M bicycles
  • Economic Impact
  • GDP per capita 3100
  • agriculture accounts for 22 of GDP
  • 58 of population depends on agriculture for
    livelihood
  • Weather
  • Reduces risks from droughts and monsoon flooding
  • Political
  • Indian PM recently stressed need to improve
    irrigation
  • (September 27, 2005 - news.yahoo.com)

6
Market Growth
  • Growing demand for irrigation in India
  • As of 2000, only 43 of food-grain growing land
    was fully irrigated
  • India is only one case study many others
    countries could benefit.

www.indiaagristat.com
7
Critical Module 1 Water Pumping System
  • FEATURES
  • Dual Cylinder Design
  • Crankshaft Couples to Bicycle Drive
  • WHAT WE LEARNED
  • One potential pump design
  • Bore Stroke
  • 12 Gallons/min
  • Research into alternative pump designs needed

8
Technical Feasibility
  • Available Human Power on a bike 150W
  • Well depth pumping head 20m
  • Force Required per pedal 30 lbs
  • Pedal Speed 50 RPM
  • 75 Efficiency
  • 12 Gallons/min
  • Feasible? Yes!

9
Future Work
  • Pump
  • Explore other pump styles
  • Wheel/Power Train Interface
  • Connection between rear wheel and gears train
  • Flywheel
  • Bicycle Stand
  • stability

10
Questions?
11
Factoids
  • 150W 12gallons/min _at_ 60ft head
  • Assume 75 Efficiency 9 gallons/min
  • Need 200 Strokes w/ Piston Diameter 2.5
  • Pedal Ratio 41 50RPM
  • 316N to pull 10m
  • Piston Lever/Crank Lever Ratio 101
  • Piston/Pedal Gear Ratio 41
  • Need 123N at Pedal
  • Force123N, Distance .5m
  • W50J/s
  • 2 Pedals
  • 100W Needed
Write a Comment
User Comments (0)
About PowerShow.com