An Experimental To Investigate The Effect Nozzle Angle An Position of Water Turbin For Obtaining Higest Rotation.

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UNIVERSITASmEM

An

Experimental To

Investigate The

Effect

Nozzle Angle

An

Position

of

Water

Turbin

For

Obtaining

Higest

Rotation

Lie,asar,"st"ffi,tffi*iil'effi

;tflffi

?Ji,:l#1#ffi'l:"::{*','.'T.',

2Electrical Engineering Depurt**g

i:r#ililffi6LHtit,re

of rechnologv,

surabava, rndonesla

Abstract

water is a key issue

for

an alternative renewable energl source has envirownentally friendly and very large

potential to solve

tn

*olai,

i,rg,

crisis. Wate*n

'fi

can be -cowerted into mechanica| energ/ by means

a

'*t'"r*nyar" turbine.

rhrrrfr;,

;t;twcific

_-urbine is re{uired to obnin *e highest

"ffi"k'?'

This papet proposes

the experimental ro

i;lri*i,

ini rigriq"*t

p*orit

o far

obtaining the higlest eficieray turbine' These

";r;;";;;,

igt,

ord

;;;i*; iioii ria^,

'tto*t

and iotatioa are itvestisated bv con&tctins exPeriments

using mini turbine

*ri"i. rn

ailgle and poriiio* nozzle is a/iusrable

n

obtiin the highest speed rotation of

turbine. The characterirrtii

if

in

irni

nrbii"

*iit

"r,

erplained as follows: outer radius is a'5 m, intur radius is

0.4 m, widrh 0.12 m, the number of bladel 32,-votume O.bgl titrc ilod"t. The erperiment result shows that the

highesr rotilion i, obtaine'i'by iO argrr$ for nozzle positioiqla

f

-f-Wees for incidence

angle' The best position

,i*rri,

"i-tid*

nu*b", 2 producis the speed of turbine 68.j1666667 rym.

Keywords : Nozzlg turbinq water wheel, energy

1.

Introduction

The en.,ry plays an important role for population in.the world. The energy demand is significantly

increases every year but the energy

,eso*"r

is limited and decreases especially conventional energy'

Hydropower is one of clean enerry

r.ro*.m

in the world. It is also the most reliable and effectively

cost re,lrewable enerry resource

,*r"g

the

others'

slall

hy&opowq

-schemes

are

getting

increasingly popof* fJtause of its simpf]crty

goi*,

ease.in operation, and 19we,r environme'lrt

of

heavy constructi*

i"

ro*parison to

ligg

hy&opi*er

schemes[l]. Conventional highly effrcient

low head

hydrafic

UrrUioo, zuch as

faifan,

6ir*.

oo**calry

unviable because of the large

size

of Ae

turUine

rr+ri."A for

very

-fo*

nrua installations, requremen!

of

special

flow

contol

mechanismandtherisktheimposeontheecologyespeciallyonfish,tashandsedimeirt

fiansPort. [ 1 _],121,137.

water wheel is a simple machine, cheap and has long been known in the community togencrate

the energy. Wrt"r

*ft"rfr'ro.

rseA is-a

pti*aty-so.tc"6f

power in ancient times' Water wheels ae

simple

*u.tir",

or*Uy

made of

*o.d;

steet

wift

blades fixed at regular interval around their circumference. The blades are pushed

by

tlre water tangentially

lo1nd

the wheel' The thrust produced

by

t6;

ilt t

on the'bladet pto&rt"t- tolque

o"

Ae

shaft and as result the wheel revolves.[1],r+r,rsr rour commonly used water wheelimodels are oversho! undershot, breast shot

and stream wheels. Overshot waterwheels are driven by potential energy -"t uPq.9y the accumulated

water in the buckets of the wheel.

wat

"

no*r

at the top of the wlieel and

fills

into the

buckets

uuu.n a on the periphery of the

wheel'[U,[5]'[fl'[8]'[9]'

Research shows

tlat

tnbine are technicaily and efficiency of 75'85o/o oy:r.a wide range of flo1,

slow speed

"f

.;;#;;ehe.

rired

r"irr

or'*re water wheil rduce the risk to aq,atic life as well

as allow better sedirnent fiansport and tolerance to floating debris'U]'[3]' Previous research on the

turbine was intended to desi$

*oo-tlAo

turbines to pr&uce electicity' _]n

tlis

qre*S

study' the

researcher,rrrl*-i.ro;td;

dant in-the

,lUrg.

of Gambuh Pupuan, Tabanan, Bali-Indonesia as

T

angle 10o position (Pl1). This indicates that the watenryheel is installed on the location, the position

of-nozzle-canbe set that the waterwheel produces RPMs closer to the maximum. The changes

of

nozzie direction is resulted the highest of RPM at 79 .13333 at an angle of 3 5 " (P 1 5) at rwzzle anSe

at -100.

Acknowledgements

The Authori convey gratitude

to

the Ministry

of

Culture and Educatiorl Indonesia, who has

provided scholarships -through the program BPPS and the research

grant

Unggulan Udayana

BOPTN 2013.

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ttl

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