INTRODUCTION
Irrigation has been practised in arid lands for thousands of years, using rivers as the source of water to grow essential food crops.
In many villages in Tanzania, relatively flat land alongside rivers and streams is used for irrigated production of onions, tomatoes, and other horticultural produce, often using buckets and watering cans, and sometimes using motorised pumps. In many large villages and towns, a good cash market exists for such crops, encouraging production for sale. Some cash is thereby available to provide production inputs additional to human labor.
In hilly areas, a gravity-fed water conveyance system is the main requirement for irrigated production. In other areas, water must first be raised from the river using a suitable water-lifting device or pump. The work described in this report puts forward a possible solution which could be viable from an economic viewpoint and attractive to users.
OBJECTIVES...............................................................Pump050.htm
REVIEW OF WATER LIFTING DEVICES AND PUMPS...............Pump060.htm
LITERATURE REVIEW – HUMAN ENERGY UTILISATION.......Pump070.htm
PROGRAM OF PUMP DEVELOPMENT AT MOROGORO............Pump080.htm
PUMP CONSTRUCTION.....................................................................Pump090.htm
PUMP DRIVE MECHANISM..............................................................Pump100.htm
PUMP PERFORMANCE......................................................................Pump110.htm
DRIVE MECHANISM COMPARISON..............................................Pump120.htm
PRODUCTION COSTS........................................................................Pump130.htm
OPERATIONAL COSTINGS...............................................................Pump140.htm
SUMMARY AND CONCLUSIONS....................................................Pump150.htm
REFERENCES......................................................................................Pump160.htm
APPENDIX........................................................................................... Pump170.htm
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