Open AccessDetermination of risk level, remaining life prediction, and risk based inspection planning based on API 581
Author(s) -
Alia Agistina,
Endang Budiasih,
Aji Pramoso
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1034/1/012116
Subject(s) - engineering , reliability engineering , unit (ring theory) , separator (oil production) , electricity , mathematics , electrical engineering , physics , mathematics education , thermodynamics
Electricity can be produced through several types of plants, one of which is Geothermal Power Plant (PLTP). One company that manages Geothermal Power Plants in Indonesia is PT Indonesia Power. In processing geothermal into electricity, companies need machines that work well in any condition, one of which is a separator machine that functions as a separator of geothermal steam with impurities. To keep the separator machine working properly, proper inspection is needed. Inspections can be done by a variety of methods, but inspections of separators should use a risk-based inspection method. Therefore, the study was conducted by applying a risk based inspection method based on API 581 Second Edition to determine the level of risk, the remaining life of the machine, and the planning of inspections (intervals and inspection techniques) on the machine. The level of risk for all separator units is medium high with a risk category of 1E, which has a low probability of failure and high failure consequences. The estimated age of the remaining machines working according to their functions based on research for unit I is 25 years, for unit II 13 years, and for unit III 18 years. This affects the inspection intervals in each unit, unit I should be inspected every 6 years, unit II is inspected every 3 years, and unit III is inspected every 4 years with a thorough inspection and thickness measurement as an inspection technique.