ANALYSIS OF HEADLOSS AND EFFICIENCY OF UGA-301AB TYPE- CENTRYPUGAL PUMP FROM COOLING TOWER INSTALATION TO DUST CHAMBER ON UREA P-IV MAINTENANCE DIVISION (CASE STUDY IN PT. PPUPUK SRIWIDJAJA, PALEMBANG CITY, SOUTH SUMATERA PROVINCE)

Centryfugal Pumping Unit (CPU) is a pump that uses a centryfugal system. According to data obtained from
known fields ρliquid is 995 kg/m3, and Z is 57.7 m. Then the calculation of the value of headloss, enter the
known value of the pump motor power (Pm) is 10.54 kW, the pump power (Pp) is 5.83 kW, pump inlet
pressure (p1) is 19.6x104 N/m2, the pump exit pressure (p2) is 107.19x104 N/m2, suction pipe diameter (d1) is
0.1524 m, the diameter of the pipe exit (d2) is 0.0889 m, flow rate (Q) is 0,0041 m3
/s. Suction pipe in order to
get the speed (Vs) is 0.226 m/s, and the exit pipe velocity (Vd) is 0,662 m/s. For the results obtained from the
calculation of the total headloss major (hf) of 0.45 m, and the total headloss minor (hm) of 0,358 m. Thus
obtained headloss on the pump type Centryfugal Pumping Unit (CPU) is equal to 0.808 m. According to
results, it can be concluded that the type of Centryfugal Pumping Unit (CPU) used are ideal because the
value of the pump head is larger than the total headloss value and efficiency pump 55.3%