Evaluasi keandalan pabrik dengan metode reliability block diagram

PRIHATIN, Boyke Sugih, Ir. Sutrisno, MSME

2010 | Tesis | S2 Teknik Mesin

Tingginya frekuensi kegagalan dan biaya akibat dari kegagalan pada pabrik di Kaltim 1 mempengaruhi pencapaian target dan biaya produksi bagi perusahaan. Teknik evaluasi perlu dilakukan untuk mengidentifikasi titik lemah system/equipment dalam upaya melakukan reliability improvement yang tepat. Penelitian ini dilakukan untuk mengevaluasi tingkat keandalan system front end pabrik Amoniak kaltim 1 di Pupuk Kaltim sebagai dasar melakukan identifikasi kelemahan system/peralatan pada sistem tersebut. Untuk menghitung tingkat keandalan pabrik dilakukan beberapa tahapan yaitu mengembangkan Plant Breakdown Structure (PBS), Functional Block Diagram(FBD), dan plant modeling dengan menggunakan teknik Reliability Block Diagram(RBD). Sedangkan untuk mengidentifikasi kelemahan system digunakan teknik Reliability Importance (RI) yang digunakan sebagai dasar untuk melakukan Reliability improvement. Hasil evaluasi keandalan mendapatkan bahwa peralatan yang menjadi titik lemah dan mempunyai kontribusi terbesar yang mengakibatkan rendahnya tingkat keandalan Front End system pabrik Amoniak K1 untuk mission time 365 hari adalah high pressure air compressor (G-1003 HP ) dan Waste Heat Boiler ( E-1007).

The high frequency of failure and costs resulting from failures in the plant in Unit Kaltim 1 affects the achievement of targets and production costs for the company. Evaluation techniques need to be done to identify the weak points of system / equipment in an effort to do the right reliability improvement. This research was conducted to evaluate the reliability of the system front end kaltim 1 Ammonia plant in East Kalimantan Fertilizer as a basis to identify weaknesses of the system / equipment in the system. To calculate the level of plant reliability conducted several stages of developing Plant Breakdown Structure (PBS), Asset Block Diagram (ABD), Functional Block Diagram (FBD), and plant modeling technique using Reliability Block Diagram (RBD). Whereas for the system used to identify weaknesses Reliability Importance technique (RI) which is used as the basis for Reliability improvement. Reliability evaluation results found that the equipment becomes the weak point and has the greatest contribution that resulted in low levels of system reliability Front End K1 Ammonia plant to 365-day mission time is high pressure air compressor G-1003 HP and Waste Heat Boiler E-1007 .

Kata Kunci : Keandalan,Reliability block diagram,Plant breakdown structure,Functional block diagram,Reliability importance,Reliability, Reliability Block Diagram, Plant Breakdown Structure, Functional Block Diagram, Reliability Importance