DESIGN, CONSTRUCTION AND TESTING OF AN OUTWARD RADIAL-FLOW REACTION WATER TURBINE
DESIGN, CONSTRUCTION AND TESTING OF AN OUTWARD RADIAL-FLOW REACTION WATER TURBINE
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Date
2007-12
Authors
NURUDEEN, AYINDE ABDULLAHI
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Abstract
An outward radial flow reaction water turbine was designed based on Euler
one-dimensional theory, constructed and tested to drive a 6W bicycle electric dynamo
using water from supply mains. The turbine watered and lit the place it was tested
eliminating the use of energy from other costlier sources which are not as
environmental friendly. Available literature showed that water and steam had been
used in providing the needed pressure for turbines based on the one-dimensional
theory with successes recorded in the past. Dedicated efforts were made in Europe
and America at improving different designs until Pelton impulse turbine, the Francis
turbine and the Kaplan turbine now universally accepted were satisfactorily designed.
In the production of this turbine (water sprinkler), the interest was more on power
generation than watering, therefore four arms were used to discharge more water so as
to deliver surplus of useful power. Consequently, the design angular speed of the
turbine, the rotor arm diameter, the work done on each arm by the fluid, the tangential
force and tolerances were determined. Mild steel, cast aluminium alloy and stainless
steel were used to fabricate this turbine because they were readily available, cheap
and machinable. A range of power output of 0.42W to 2.66W was obtained for a
range of mains pressure of 2 5 10 5.1
mN to 2 5 10 8.2
mN . The results obtained from
readings taken were tabulated and graphs plotted accordingly. The optimum
performance occurred at 2 5 10 2
mN , a speed of 600rpm and a mass flow rate of
0.685 kg/s. The maximum power obtained at maximum mains pressure of
2 5 10 8.2
mN was 2.66W. The cost of the water turbine stood at thirty five thousand,
three hundred and eighty naira only (N35, 380.00) and this would reduce greatly when
the water turbine is mass produced. Power was generated to lit the place that the water
turbine was used from the residual power head.
Description
A DISSERTATION SUBMITTED TO THE POSTGRADUATE SCHOOL
AHMADU BELLO UNIVERSITY, ZARIA
NIGERIA
IN PARTIAL FULFILMENT FOR THE AWARD OF MASTER OF
SCIENCE IN MECHANICAL ENGINEERING (ENERGY
CONVERSION SYSTEMS)
DEPARTMENT OF MECHANICAL ENGINEERING
AHMADU BELLO UNIVERSITY, ZARIA - NIGERIA
DECEMBER, 2007
Keywords
DESIGN,, CONSTRUCTION,, TESTING,, OUTWARD,, RADIAL,, FLOW,, REACTION,, WATER,, TURBINE,