Selection of suppliers of repairable equipment with the aim of minimizing costs in the construction and operation phases

Objective: Selecting suppliers of industrial systems equipment to minimize the total construction and operation costs and implement it for Feed Water Multi-state System (FWS) of Heat Recovery Steam Generator (HRSG) boilers in Mapna Company. Methods: Using the Markov chain model results in a mathemat...

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Autores principales:	Mohammadjavad Shamsi, Mahmoud Shahrokhi
Formato:	article
Lenguaje:	FA
Publicado:	University of Tehran 2020
Materias:	block diagram model availability reliability markov chain repairable equipment Management. Industrial management HD28-70
Acceso en línea:	https://doaj.org/article/7c88ed88f87b4873a4e672742623eff6
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spelling	oai:doaj.org-article:7c88ed88f87b4873a4e672742623eff62021-11-14T05:49:28ZSelection of suppliers of repairable equipment with the aim of minimizing costs in the construction and operation phases2008-58852423-536910.22059/imj.2021.307002.1007768https://doaj.org/article/7c88ed88f87b4873a4e672742623eff62020-12-01T00:00:00Zhttps://imj.ut.ac.ir/article_83185_d9ff1286823c0a48de590ef8cbc9f7b1.pdfhttps://doaj.org/toc/2008-5885https://doaj.org/toc/2423-5369Objective: Selecting suppliers of industrial systems equipment to minimize the total construction and operation costs and implement it for Feed Water Multi-state System (FWS) of Heat Recovery Steam Generator (HRSG) boilers in Mapna Company. Methods: Using the Markov chain model results in a mathematical programming model and then analyzing the sensitivity of this model. First, using the Markov chain, different system states are drawn. Then, using the state transfer rate (failure rate and repair rate) of the equipment, the probability of the system being in any of these states is determined parametrically. Then, the Markov chain model results are added to the other constraints of a mathematical model the problem and solved by GAMS software. The effect of cost parameter changes on the optimal solution is calculated individually and then compared in a general graph. Results: The highest construction and operation costs are in ascending order: 1- the equipment purchasing price, 2- the production capacity reduction cost, 3- the system construction delay penalty, and 4- the system shutdown cost. Also, the relationship between the optimal solution to these parameters is linear in a wide range of changes. Conclusion: All costs have a direct effect on the design of the Feed Water System (purchase, delay, capacity reduction, and shutdown), but the cost of purchasing equipment has the most significant effect on the total cost. It is therefore recommended to focus entirely on reducing this cost.Mohammadjavad ShamsiMahmoud ShahrokhiUniversity of Tehranarticleblock diagram modelavailabilityreliabilitymarkov chainrepairable equipmentManagement. Industrial managementHD28-70FAمدیریت صنعتی, Vol 12, Iss 4, Pp 634-654 (2020)
institution	DOAJ
collection	DOAJ
language	FA
topic	block diagram model availability reliability markov chain repairable equipment Management. Industrial management HD28-70
spellingShingle	block diagram model availability reliability markov chain repairable equipment Management. Industrial management HD28-70 Mohammadjavad Shamsi Mahmoud Shahrokhi Selection of suppliers of repairable equipment with the aim of minimizing costs in the construction and operation phases
description	Objective: Selecting suppliers of industrial systems equipment to minimize the total construction and operation costs and implement it for Feed Water Multi-state System (FWS) of Heat Recovery Steam Generator (HRSG) boilers in Mapna Company. Methods: Using the Markov chain model results in a mathematical programming model and then analyzing the sensitivity of this model. First, using the Markov chain, different system states are drawn. Then, using the state transfer rate (failure rate and repair rate) of the equipment, the probability of the system being in any of these states is determined parametrically. Then, the Markov chain model results are added to the other constraints of a mathematical model the problem and solved by GAMS software. The effect of cost parameter changes on the optimal solution is calculated individually and then compared in a general graph. Results: The highest construction and operation costs are in ascending order: 1- the equipment purchasing price, 2- the production capacity reduction cost, 3- the system construction delay penalty, and 4- the system shutdown cost. Also, the relationship between the optimal solution to these parameters is linear in a wide range of changes. Conclusion: All costs have a direct effect on the design of the Feed Water System (purchase, delay, capacity reduction, and shutdown), but the cost of purchasing equipment has the most significant effect on the total cost. It is therefore recommended to focus entirely on reducing this cost.
format	article
author	Mohammadjavad Shamsi Mahmoud Shahrokhi
author_facet	Mohammadjavad Shamsi Mahmoud Shahrokhi
author_sort	Mohammadjavad Shamsi
title	Selection of suppliers of repairable equipment with the aim of minimizing costs in the construction and operation phases
title_short	Selection of suppliers of repairable equipment with the aim of minimizing costs in the construction and operation phases
title_full	Selection of suppliers of repairable equipment with the aim of minimizing costs in the construction and operation phases
title_fullStr	Selection of suppliers of repairable equipment with the aim of minimizing costs in the construction and operation phases
title_full_unstemmed	Selection of suppliers of repairable equipment with the aim of minimizing costs in the construction and operation phases
title_sort	selection of suppliers of repairable equipment with the aim of minimizing costs in the construction and operation phases
publisher	University of Tehran
publishDate	2020
url	https://doaj.org/article/7c88ed88f87b4873a4e672742623eff6
work_keys_str_mv	AT mohammadjavadshamsi selectionofsuppliersofrepairableequipmentwiththeaimofminimizingcostsintheconstructionandoperationphases AT mahmoudshahrokhi selectionofsuppliersofrepairableequipmentwiththeaimofminimizingcostsintheconstructionandoperationphases
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Selection of suppliers of repairable equipment with the aim of minimizing costs in the construction and operation phases

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