KAJI EKSPERIMENTAL PENGARUH VARIASI DIAMETER NOZZEL DAN JUMLAH SUDU TERHADAP DAYA DAN EFFISIENSI PADA PROTOTYPE TURBIN PELTON DI LAB. FLUIDA

Abstract

Review of experimental effect of variations in the diameter of the nozzle and the amount of bucket on the
power and the efficiency on prototype pelton turbine in the Lab. Fluid. The aim of this study wants to know the effect
of variations in the diameter of the nozzle and amount of the bucket to the power and efficiency of the existing pelton
turbine prototype in the laboratory Fluid in the Pico-hydro scale. The steps in this research include the study of
literature and field studies, designing, manufacturing of test equipment, testing, data analysis, and conclusions.
Variation is done using nozzle diameter (dn) 6 mm and 9 mm, β
2
at 165
o
, amount of bucket (Z) 12 units, 17 units,
and 22 units. For the runner has a large diameter of 150 mm, while for the power plants or generators using spool
and magnet on motorcycles. Results of this testing is the largest input power (P
in
) at d
6 mm with a value of 46.81
watts. The largest turbine power (P
t
) and turbine efficiency (η
t
) at d
n
n
= 6 mm with Z = 12 unit with value P
= 40,34
watt and η
t
=86,18 watt. The largest generator power (P
gen
) at d
= 6 mm with Z = 22 unit with value 9,6 watt,
meanwhile for the largest generator efficiency (η
gen
n
) and the largest efficiency system (η
sis
) at d
= 9 mm with Z = 22
unit with value η
gen
= 54,24 % and η
= 25,82 %.

Keywords: Pelton Turbine, Bucket, Nozzle, Power and Efficiency