EKSPERIMEN PERFORMANCE POMPA AIR DENGAN PENGATURAN SUCTION HEAD
Abstract: The study objectives
were: (1). to determine the efficiency of the pump with high and low suction
head setting. (2). to know the power consumption saving. (3). To determine pump
performance that is widely used by the public. This research was conducted at
the Laboratory of Mechanical Engineering, D III Programme, Faculty of
Engineering, Diponegoro University.
The study took 3 (three) of about 6 (six) pump brands as a sample which
is traded and used by the public in Semarang. Water flow and electric current
data are calculated to determine the pump efficiency data, then analyzed using
analysis of variance statistical methods with formula , Mk brands is the mean
squared of brands, Mk suction head is the mean square of the suction head, and
Mk Dal is the inner mean square.
Data analysis result showed that for the suction head with degrees of
freedom 22 versus 10, null approach limit is 2.3 at significance level of 5%
and 3.26 at significance level of 1%. Thus the hypothesis can not be defended
(rejected) because the value of the F from table are far away from generated F.
As for inter-brand, with degrees of freedom of 22 versus 2 hypothesis rejection
limit is 3.44 for 5% significance level and 5.72 for the 1% level. The result
show that for inter-brand, the generated Fo is much larger than Ft,, so the
hypothesis are acceptable, it is proved that there is a difference in pump
performance and efficiency between one and another pump brands. Installation of
pumps will be efficient when the distance of suction head is relatively small
and based on the test, Fuji’s pump brand is better than the other 2 (two)
pumps.
Penulis: Drs. INDARTONO M.Par
M.Si
Kode Jurnal: jpkimiadd120263
