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A multi-constrained maintenance scheduling optimization model for a hydrocarbon processing facility


Ahmed, Q and Moghaddam, KS and Raza, SA and Khan, FI, A multi-constrained maintenance scheduling optimization model for a hydrocarbon processing facility, Journal of Risk and Reliability: Proceedings of the Institution of Mechanical Engineers, Part O, 229, (2) pp. 151-168. ISSN 1748-006X (2015) [Refereed Article]

Copyright Statement

Copyright 2015 IMechE

DOI: doi:10.1177/1748006X15573166


A maintenance scheduling optimization model considering equipment risk, total maintenance cost, system reliability and availability is proposed. This work is motivated by gas processing operator's concern of high maintenance cost, poor availability and reliability caused by inefficient maintenance scheduling. The approach presented in this article addresses the optimization of maintenance cost by efficiently scheduling maintenance task subject to reliability and availability constraints. Four maintenance actions are considered for each equipment, namely, corrective, replacement, maintenance and inspection. The proposed solution develops maintenance schedules for complex repairable system with equipment operating in series. Two single-objective, nonlinear mathematical models are presented to find the optimal maintenance cost subject to reliability and system reliability subject to availability constraint. A goal programming model is also proposed to simultaneously deal with multiple criteria based on their importance and defined goals. A gas absorption system of a hydrocarbon processing facility is used to ensure the practicality of the proposed formulation to real industry problems. A comparison of existing and proposed formulation is carried out to show that the proposed optimization approach is an efficient method for optimizing maintenance schedules and flexibility to adjust schedules in a complex operating system. © IMechE 2015.

Item Details

Item Type:Refereed Article
Keywords:availability, goal programming, maintenance cost, maintenance optimization, reliability, risk, availability, constrained optimization, costs, equipment, gas absorption, hydrocarbon refining, hydrocarbons, linear programming, optimization, risks
Research Division:Engineering
Research Group:Engineering practice and education
Research Field:Risk engineering
Objective Division:Energy
Objective Group:Processing of energy sources
Objective Field:Oil and gas processing
UTAS Author:Khan, FI (Professor Faisal Khan)
ID Code:120688
Year Published:2015
Web of Science® Times Cited:6
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2017-08-30
Last Modified:2017-11-10

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