Kajian Eksperimental Performansi Pompa dengan Kapasitas 1,25 m3/menit Head 12 m jika Dioperasikan Sebagai Turbin
Abstract: Pump as Turbine or
PAT is a promising aplication for harvesting small scale hydro power. In comparison
with a turbine.
pump is cheap,
easy to install,
and available in
market with various sizes. Since
so PAT is suitable for micro hydropower and for rural areas
a typical off-grid
villages in Indonesia.
However, a pump is
originally designed efficiently to convert
power into fluid energy,
not reverse, for
converting fluid energy
into power. Thus,
experiments are extremely needed in
order to search the best operation point of a PAT. This paper deals with experimental study
on pump operated as a turbine. A local
produced pump with capacity 1.25 m3/minute and head 12 m is tested in the
laboratory with falling water from 5.18 m and 9.29 m. The pump
is coupled with
a generator and
the electicity produced
is used to
light five lamps with
100W each.The results
show that the
best efficiency is
31,39% at 10,38
L/minute and head 5,18 m. The
maximum output power is 400W which is sufficient to generate electricity for small
house. The experimental results agree well with the teoretical ones. However,
the graphs plotted reveal that
the present PAT
is still far
from its best
efficiency point.This is due to limitation
of the experimental
apparatus. Further modification
or using smaller
pumps are suggested to explore
the best efficiency point of PAT.
Penulis: Himsar Ambarita
Kode Jurnal: jptmesindd110222
