Maintenance Scheduling Analysis under Limited Resources with Application to Pumps of a Power Plant  
Author Yao Hsu


Co-Author(s) Wen-Fang Wu; Tzu-Yu Kuo; Shih-Cheng Liu; Jo-Hsin Huang


Abstract The power-plant management issues have recently attracted intensive attentions. In fact, planning a reasonable maintenance strategy under the dual consideration of safety and cost has always been an important task for a power plant. The traditional complex maintenance plan is to search for high-level reliability and availability at a reasonable cost by taking into account only the testing and maintenance time. It ignores the impact of maintenance resource which, in general, includes maintenance equipment. To be consistent with real practices, one should consider maintenance resource as an important factor in the reliability and maintainability analysis of power plants and take its failure into account in planning a maintenance strategy. Under this consideration, the present study applies queueing theory to analyze the real failure data of pumps of a domestic power plant which is then used for constructing a more complete reliability model taking into account the factor of maintenance resource. The life cycle cost of pump is also taken into consideration to determine the optimal amount of maintenance resources. An optimal maintenance scheduling of pumps indicates that both the increase of maintenance resource and the implementation of preventive maintenance really have positive impacts on pump performance.


Keywords Pumps, Maintenance Resource, Queueing Theory
    Article #:  1965
Proceedings of the 19th ISSAT International Conference on Reliability and Quality in Design
August 5-7, 2013 - Honolulu, Hawaii, U.S.A.