Verovatnoća otkaza cevi cevnog sistema kotla termoenergetskih postrojenja u uslovima delovanja korozije
Probability of failure of thermal power plant boiler tubing system due to corrosion
Abstract
Korozija predstavlja nepovratni proces degradacije materijala. Zbog nepovoljanog uticaja koji ima na radne osobine materijal, posebno materijala cevnog sistema kotla, ona predstavlja predstavlja neizostavni deo rada termoenergetskih postrojenja i glavni uzrok mnogih otkaza. Pored uobičajenih metoda za procenu preostalog radnog veka korisno je primeniti i metode za procenu pouzdanosti kotlovskih cevi termoenergetskih postrojenja koje su oštećene korozijom. Korelacijom rezultata koji se dobijaju primenom ove dve različite metode moguće je dobiti bolja saznanja o trenutnom stanju materijala cevi uz istovremeno izvođenje tačnije procene njihovog ponašanja tokom dalje eksploatacije. Stoga je u ovom radu na primeru cevi ulazne zone paketa naknadnog pregrejača prikazan integralni pristup procene preostalog radnog veka i pouzdanosti. Razmatranja ove vrste su veoma značajna za pristupe u održavanju koji su zasnovani na riziku.
Corrosion is irreversible process of material degradation. Due to detrimental effects exerted on the operating material characteristics, especially in the boiler tube system, it is of one the most important issues in the operation of thermal plants and is considered to be the root cause of many outages. Besides common remaining life assessment methods, it is useful to apply a method of reliability evaluation of the thermal power plant boiler tubes with corrosion damages. Correlation of results obtained by these two methods makes possible to obtain a better knowledge of current tubes material state as well as a more accurate assessment of their behavior during future exploitation. Therefore, an integrated approach of remaining life assessment and reliability evaluation, on the first stage reheater tubes system example, is presented in this paper. Considerations of this kind are very important for the risk-based maintenance programs.
Keywords:
thermal power plant / remaining life assessment / reliability evaluation / corrosionSource:
FME Transactions, 2007, 35, 1, 47-54Publisher:
- Univerzitet u Beogradu - Mašinski fakultet, Beograd
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Institution/Community
Mašinski fakultetTY - JOUR AU - Bakić, Gordana AU - Šijački-Žeravčić, Vera AU - Đukić, Miloš AU - Anđelić, Biljana PY - 2007 UR - https://machinery.mas.bg.ac.rs/handle/123456789/724 AB - Korozija predstavlja nepovratni proces degradacije materijala. Zbog nepovoljanog uticaja koji ima na radne osobine materijal, posebno materijala cevnog sistema kotla, ona predstavlja predstavlja neizostavni deo rada termoenergetskih postrojenja i glavni uzrok mnogih otkaza. Pored uobičajenih metoda za procenu preostalog radnog veka korisno je primeniti i metode za procenu pouzdanosti kotlovskih cevi termoenergetskih postrojenja koje su oštećene korozijom. Korelacijom rezultata koji se dobijaju primenom ove dve različite metode moguće je dobiti bolja saznanja o trenutnom stanju materijala cevi uz istovremeno izvođenje tačnije procene njihovog ponašanja tokom dalje eksploatacije. Stoga je u ovom radu na primeru cevi ulazne zone paketa naknadnog pregrejača prikazan integralni pristup procene preostalog radnog veka i pouzdanosti. Razmatranja ove vrste su veoma značajna za pristupe u održavanju koji su zasnovani na riziku. AB - Corrosion is irreversible process of material degradation. Due to detrimental effects exerted on the operating material characteristics, especially in the boiler tube system, it is of one the most important issues in the operation of thermal plants and is considered to be the root cause of many outages. Besides common remaining life assessment methods, it is useful to apply a method of reliability evaluation of the thermal power plant boiler tubes with corrosion damages. Correlation of results obtained by these two methods makes possible to obtain a better knowledge of current tubes material state as well as a more accurate assessment of their behavior during future exploitation. Therefore, an integrated approach of remaining life assessment and reliability evaluation, on the first stage reheater tubes system example, is presented in this paper. Considerations of this kind are very important for the risk-based maintenance programs. PB - Univerzitet u Beogradu - Mašinski fakultet, Beograd T2 - FME Transactions T1 - Verovatnoća otkaza cevi cevnog sistema kotla termoenergetskih postrojenja u uslovima delovanja korozije T1 - Probability of failure of thermal power plant boiler tubing system due to corrosion EP - 54 IS - 1 SP - 47 VL - 35 UR - https://hdl.handle.net/21.15107/rcub_machinery_724 ER -
@article{ author = "Bakić, Gordana and Šijački-Žeravčić, Vera and Đukić, Miloš and Anđelić, Biljana", year = "2007", abstract = "Korozija predstavlja nepovratni proces degradacije materijala. Zbog nepovoljanog uticaja koji ima na radne osobine materijal, posebno materijala cevnog sistema kotla, ona predstavlja predstavlja neizostavni deo rada termoenergetskih postrojenja i glavni uzrok mnogih otkaza. Pored uobičajenih metoda za procenu preostalog radnog veka korisno je primeniti i metode za procenu pouzdanosti kotlovskih cevi termoenergetskih postrojenja koje su oštećene korozijom. Korelacijom rezultata koji se dobijaju primenom ove dve različite metode moguće je dobiti bolja saznanja o trenutnom stanju materijala cevi uz istovremeno izvođenje tačnije procene njihovog ponašanja tokom dalje eksploatacije. Stoga je u ovom radu na primeru cevi ulazne zone paketa naknadnog pregrejača prikazan integralni pristup procene preostalog radnog veka i pouzdanosti. Razmatranja ove vrste su veoma značajna za pristupe u održavanju koji su zasnovani na riziku., Corrosion is irreversible process of material degradation. Due to detrimental effects exerted on the operating material characteristics, especially in the boiler tube system, it is of one the most important issues in the operation of thermal plants and is considered to be the root cause of many outages. Besides common remaining life assessment methods, it is useful to apply a method of reliability evaluation of the thermal power plant boiler tubes with corrosion damages. Correlation of results obtained by these two methods makes possible to obtain a better knowledge of current tubes material state as well as a more accurate assessment of their behavior during future exploitation. Therefore, an integrated approach of remaining life assessment and reliability evaluation, on the first stage reheater tubes system example, is presented in this paper. Considerations of this kind are very important for the risk-based maintenance programs.", publisher = "Univerzitet u Beogradu - Mašinski fakultet, Beograd", journal = "FME Transactions", title = "Verovatnoća otkaza cevi cevnog sistema kotla termoenergetskih postrojenja u uslovima delovanja korozije, Probability of failure of thermal power plant boiler tubing system due to corrosion", pages = "54-47", number = "1", volume = "35", url = "https://hdl.handle.net/21.15107/rcub_machinery_724" }
Bakić, G., Šijački-Žeravčić, V., Đukić, M.,& Anđelić, B.. (2007). Verovatnoća otkaza cevi cevnog sistema kotla termoenergetskih postrojenja u uslovima delovanja korozije. in FME Transactions Univerzitet u Beogradu - Mašinski fakultet, Beograd., 35(1), 47-54. https://hdl.handle.net/21.15107/rcub_machinery_724
Bakić G, Šijački-Žeravčić V, Đukić M, Anđelić B. Verovatnoća otkaza cevi cevnog sistema kotla termoenergetskih postrojenja u uslovima delovanja korozije. in FME Transactions. 2007;35(1):47-54. https://hdl.handle.net/21.15107/rcub_machinery_724 .
Bakić, Gordana, Šijački-Žeravčić, Vera, Đukić, Miloš, Anđelić, Biljana, "Verovatnoća otkaza cevi cevnog sistema kotla termoenergetskih postrojenja u uslovima delovanja korozije" in FME Transactions, 35, no. 1 (2007):47-54, https://hdl.handle.net/21.15107/rcub_machinery_724 .