Markov approach to evaluate the availability simulation model for power generation system in a thermal power plant ,
In recent years, the availability of power plants has become increasingly important issue in most developed and developing countries. This paper aims to propose a methodology based on Markov approach to evaluate the availability simulation model for power generation system (Turbine) in a thermal pow...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Growing Science
2012-10-01
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| Series: | International Journal of Industrial Engineering Computations |
| Subjects: | |
| Online Access: | http://www.growingscience.com/ijiec/Vol3/IJIEC_2012_59.pdf |
| _version_ | 1818245883220721664 |
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| author | Avdhesh Kr. Sharma Ravinder Kumar P.C Tewari |
| author_facet | Avdhesh Kr. Sharma Ravinder Kumar P.C Tewari |
| author_sort | Avdhesh Kr. Sharma |
| collection | DOAJ |
| description | In recent years, the availability of power plants has become increasingly important issue in most developed and developing countries. This paper aims to propose a methodology based on Markov approach to evaluate the availability simulation model for power generation system (Turbine) in a thermal power plant under realistic working environment. The effects of occurrence of failure/course of actions and availability of repair facilities on system performance have been investigated. Higher availability of the components/equipments is inherently associated with their higher reliability and maintainability. The power generation system consists of five subsystems with four possible states: full working, reduced capacity, reduced efficiency and failed state. So, its availability should be carefully evaluated in order to foresee the performance of the power plant. The availability simulation model (Av.) has been developed with the help of mathematical formulation based on Markov Birth-Death process using probabilistic approach. For this purpose, first differential equations have been generated. These equations are then solved using normalizing condition so as to determine the steady state availability of power generation system. In fact, availability analysis is very much effective in finding critical subsystems and deciding their preventive maintenance program for improving availability of the power plant as well as the power supply. From the graphs illustrated, the optimum values of failure/repair rates for maximum availability, of each subsystem is analyzed and then maintenance priorities are decided for all subsystems.The present paper highlights that in this system, Turbine governing subsystem is most sensitive demands more improvement in maintainability as compared to the other subsystems. While Turbine lubrication subsystem is least sensitive. |
| first_indexed | 2024-12-12T14:39:59Z |
| format | Article |
| id | doaj.art-6ae67b091e094c5c86587858446e561d |
| institution | Directory Open Access Journal |
| issn | 1923-2926 1923-2934 |
| language | English |
| last_indexed | 2024-12-12T14:39:59Z |
| publishDate | 2012-10-01 |
| publisher | Growing Science |
| record_format | Article |
| series | International Journal of Industrial Engineering Computations |
| spelling | doaj.art-6ae67b091e094c5c86587858446e561d2022-12-22T00:21:18ZengGrowing ScienceInternational Journal of Industrial Engineering Computations1923-29261923-29342012-10-0135743750Markov approach to evaluate the availability simulation model for power generation system in a thermal power plant ,Avdhesh Kr. SharmaRavinder KumarP.C TewariIn recent years, the availability of power plants has become increasingly important issue in most developed and developing countries. This paper aims to propose a methodology based on Markov approach to evaluate the availability simulation model for power generation system (Turbine) in a thermal power plant under realistic working environment. The effects of occurrence of failure/course of actions and availability of repair facilities on system performance have been investigated. Higher availability of the components/equipments is inherently associated with their higher reliability and maintainability. The power generation system consists of five subsystems with four possible states: full working, reduced capacity, reduced efficiency and failed state. So, its availability should be carefully evaluated in order to foresee the performance of the power plant. The availability simulation model (Av.) has been developed with the help of mathematical formulation based on Markov Birth-Death process using probabilistic approach. For this purpose, first differential equations have been generated. These equations are then solved using normalizing condition so as to determine the steady state availability of power generation system. In fact, availability analysis is very much effective in finding critical subsystems and deciding their preventive maintenance program for improving availability of the power plant as well as the power supply. From the graphs illustrated, the optimum values of failure/repair rates for maximum availability, of each subsystem is analyzed and then maintenance priorities are decided for all subsystems.The present paper highlights that in this system, Turbine governing subsystem is most sensitive demands more improvement in maintainability as compared to the other subsystems. While Turbine lubrication subsystem is least sensitive.http://www.growingscience.com/ijiec/Vol3/IJIEC_2012_59.pdfAvailabilitysimulation modelTransition diagram Probabilistic approachMarkov approachStochastic analysis |
| spellingShingle | Avdhesh Kr. Sharma Ravinder Kumar P.C Tewari Markov approach to evaluate the availability simulation model for power generation system in a thermal power plant , International Journal of Industrial Engineering Computations Availability simulation model Transition diagram Probabilistic approach Markov approach Stochastic analysis |
| title | Markov approach to evaluate the availability simulation model for power generation system in a thermal power plant , |
| title_full | Markov approach to evaluate the availability simulation model for power generation system in a thermal power plant , |
| title_fullStr | Markov approach to evaluate the availability simulation model for power generation system in a thermal power plant , |
| title_full_unstemmed | Markov approach to evaluate the availability simulation model for power generation system in a thermal power plant , |
| title_short | Markov approach to evaluate the availability simulation model for power generation system in a thermal power plant , |
| title_sort | markov approach to evaluate the availability simulation model for power generation system in a thermal power plant |
| topic | Availability simulation model Transition diagram Probabilistic approach Markov approach Stochastic analysis |
| url | http://www.growingscience.com/ijiec/Vol3/IJIEC_2012_59.pdf |
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