APLIKASI OPTIMAL PREVENTIVE REPLACEMENT AGE MODEL UNTUK MENENTUKAN JADWAL PENGGANTIAN KOMPONEN DUMPING GRATE PADA MESIN KETEL UAP (Studi Kasus di PG Rejo Agung Baru Madiun)
ABSTRACT: Rejo Agung Baru
Madiun is one of big sugar companies in East Java. One of the problems in this
factory is delayed of production process caused by machine damaged. Based on
preliminary survey, it showed that boiler machine is regularly damage and has
the highest downtime. Moreover, component that influences the damage of boiler
machine is dumping grate component. The main purpose of this research is to
determine optimal replacement schedule that has minimum downtime and maximum
availability of dumping grate component. Method that is used to solve the
problem is optimal preventive replacement age model. Furthermore, it also
determines and compares replacement cost before and after scheduling. From the
result, it shows that the replacement interval for dumping grate is 555 hours
or 23.125 days with the minimum downtime value is 0.010018182 and the
availability value is 0.989981818. Total cost of optimal replacement scheduling
is Rp 3,341,078,529.00. The cost comparison before replacement scheduling and
after replacement scheduling is Rp 3,517,399,429.00 and Rp 3,341,078,529.00
respectively or saving about 5.013%.
Keywords: dumping grate,
minimum downtime, maximum availability, optimal preventive replacement age
model
Penulis: Wike Agustin Prima
Dania, Isti Purwaningsih, Isti Purwaningsih, Fajar Andy Aristiono
Kode Jurnal: jppertaniandd110008
