Advances and Applications in Statistics
Volume 54, Issue 1, Pages 151 - 178
(January 2019) http://dx.doi.org/10.17654/AS054010151 |
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RELIABILITY ANALYSIS OF MULTIPLE UNITS WITH MULTIPLE REPAIRMEN OF RODDING ANODE PLANT IN ALUMINUM INDUSTRY
Yaqoob Al Rahbi, S. M. Rizwan, B. M. Alkali, Andrew Cowell and G. Taneja
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Abstract: The paper presents reliability analysis of a rodding anode plant in aluminum industry with multiple units and multiple repairmen. Manufacturing process of raw aluminum passes through eight stations, and each of the station has different role in the entire process. The plant operates round the clock, and failure in any of the stations brings the system to a complete halt, except one station because of the parallel standby arrangement, and does not affect the system operation completely unless both fails. Six years' maintenance data on unit failures, repairs and associated costs are collected for the purpose of this analysis and various rates are estimated from the data. Measures of system effectiveness such as mean time to plant failure (MTPF), availability analysis of the plant Ai(t) busy period analysis of repairman Bi(t) and expected number of visits by the repairmen have been obtained. Semi-Markov processes and regenerative point techniques are used in the entire analysis. |
Keywords and phrases: reliability, aluminum plant, semi-Markov, regenerative point, failures, repairs.
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