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Solar-Powered

Water Pumping in Senegal

The

Pennslyvania

State UniversityENGr 493Andrew Kriebel, Kristen Woznick, Ahmed Al haddad

1. Data-basing existing solar pumps2. Innovating a low cost alternative

Vision:

Values:

Well Dimensions:

64 Submersible pumps from 9 manufacturers

1. Data-basing existing solar pumps

Improved Functionality with criteria input and searching function

Create an interactive database of existing solar powered (DC) submersible water pumps suitable for pumping well water

Location:

Stirling

Engine

The Stirling Engine is a heat engine that converts heat to mechanical work

Sun Collection Method

Mission

:

Current Design

Power piston (dark grey) has compressed the gas, the displacer piston (light grey) has moved so that most of gas is adjacent to the hot heat exchanger.

The heated gas increase in pressure and pushes power piston to farthest limit of power

stroke

Displacer piston now moves, shunting gas to

cool end of cylinderCooled gas is now compressible by the flywheel momentum. This takes less energy, since when it is cooled its pressure drops.

2. Innovating a lower cost alternative

Schematic Design

Solar Collecting Dish

Hot End of Engine

Gamma Engine

‘Gear’ System

Mechanical Pump

Water Pipe

Cool Side with Water

Gamma Stirling Engine

HEAT

COLD

DISPLACER

POWER PISTON

WORK OUT

EXPANSION

COMPRESION

1.2 – 1.6 m

20 m

2 m

20 cubic meters per day

CROPS

WATER

SUN’S ENERGY

ENGINE/PUMP ASSEMBLY

Provide a solar based water pumping method for the SUNU Farm in Senegal, Africa

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