Thesis (MSc) - Cyprus International University. Institute of Graduate Studies and Research Mechanical Engineering Department

Includes bibliography (sheets 57-60)

ABSTRACT
This research involves the design and analysis of a pedal powered double-acting
reciprocating pump and was undertaken with purpose of proving a cost-effective
solution to the problem of delivery of water from the ground with relatively less effort.
This development is due to the need of rural areas where locals find it very difficult to
get access to clean drinking water or do not have electricity for pumping of water. The
comparison of alternative solutions is based on the cost and effort needed to design the
system. The problem, therefore, involved an optimization in terms of suction depth of
water to be drawn and cost of the total system. Since the pump is dependent on suction
depth, the practical limit of which to elevate water from is a depth of 6 m. Any depth
further will need the pump to be positioned below ground level. The mechanism
considered for the purpose will consist of a double acting reciprocating water pump
that can be driven by a set up attached to the rear wheel of a bicycle. Based on this
design, pedaling for a minute or two should be sufficient to pump 180 – 360 liters of
water to a height of about 3 meters. The design is also focused on the easy accessibility
to local materials which can be used to manufacture the system. The design is aims to
provide an environmentally friendly solution with no form of pollution, enabling a
healthy exercise and which is independent of the rising energy costs. The designed
system, besides providing clean drinkable water, will also be capable suitable for
supplying water for small irrigation as well.
Keyword: Chain-drive, Check valves, Crank-mechanism, Flywheel, Pedal, Piston,
Pump, Sprockets