Oxide scale growth and presumed exfoliation in a 700 °c or higher steam condition: A simulation study for future operations of ultra-supercritical power plants
The world is facing the challenge of providing abundant and affordable electricity to meet the need of a growing global population, while lowering and controlling CO2 emissions. Both of these goals can be met through improving the efficiency of the boiler through increasing the operating pressure an...
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2023
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my.uniten.dspace-221172023-05-16T10:47:32Z Oxide scale growth and presumed exfoliation in a 700 °c or higher steam condition: A simulation study for future operations of ultra-supercritical power plants Yeo W.H. Fry A.T. Purbolaksono J. Ramesh S. Inayat-Hussain J.I. Liew H.L. Hamdi M. 26024539700 57188728682 8621252500 41061958200 6602271377 6701388711 17433807000 The world is facing the challenge of providing abundant and affordable electricity to meet the need of a growing global population, while lowering and controlling CO2 emissions. Both of these goals can be met through improving the efficiency of the boiler through increasing the operating pressure and temperature, although increasing steam temperature has been reported to be more economical than raising steam pressure. However, higher temperatures may lead to increased boiler tube failure through steam-side oxidation and fireside corrosion mechanisms. Ni-based alloys are candidate materials for these aggressive conditions. The study reported here is evaluating steam-side oxide growth in a given length of superheater and reheater tubes of ultra-supercritical boilers operating at 700 °C or higher/35 MPa steam condition under different presumed service conditions. A simple and inexpensive procedure to estimate the oxide scale growth and the metal temperature increase in a boiler tube over a period of time is proposed. Verification of the findings with the actual data from the power plants is provided. The oxide scale growth rates of nickel-based alloys at steam temperatures up to 750 °C seemed to be tolerable in service based on the procedures demonstrated here. © 2014 Elsevier B.V. Final 2023-05-16T02:47:32Z 2023-05-16T02:47:32Z 2014 Article 10.1016/j.supflu.2014.06.002 2-s2.0-84903220243 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84903220243&doi=10.1016%2fj.supflu.2014.06.002&partnerID=40&md5=9e8f75ab1f3fcd639456a255b7385982 https://irepository.uniten.edu.my/handle/123456789/22117 92 215 222 Elsevier Scopus |
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The world is facing the challenge of providing abundant and affordable electricity to meet the need of a growing global population, while lowering and controlling CO2 emissions. Both of these goals can be met through improving the efficiency of the boiler through increasing the operating pressure and temperature, although increasing steam temperature has been reported to be more economical than raising steam pressure. However, higher temperatures may lead to increased boiler tube failure through steam-side oxidation and fireside corrosion mechanisms. Ni-based alloys are candidate materials for these aggressive conditions. The study reported here is evaluating steam-side oxide growth in a given length of superheater and reheater tubes of ultra-supercritical boilers operating at 700 °C or higher/35 MPa steam condition under different presumed service conditions. A simple and inexpensive procedure to estimate the oxide scale growth and the metal temperature increase in a boiler tube over a period of time is proposed. Verification of the findings with the actual data from the power plants is provided. The oxide scale growth rates of nickel-based alloys at steam temperatures up to 750 °C seemed to be tolerable in service based on the procedures demonstrated here. © 2014 Elsevier B.V. |
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26024539700 |
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26024539700 Yeo W.H. Fry A.T. Purbolaksono J. Ramesh S. Inayat-Hussain J.I. Liew H.L. Hamdi M. |
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Article |
| author |
Yeo W.H. Fry A.T. Purbolaksono J. Ramesh S. Inayat-Hussain J.I. Liew H.L. Hamdi M. |
| spellingShingle |
Yeo W.H. Fry A.T. Purbolaksono J. Ramesh S. Inayat-Hussain J.I. Liew H.L. Hamdi M. Oxide scale growth and presumed exfoliation in a 700 °c or higher steam condition: A simulation study for future operations of ultra-supercritical power plants |
| author_sort |
Yeo W.H. |
| title |
Oxide scale growth and presumed exfoliation in a 700 °c or higher steam condition: A simulation study for future operations of ultra-supercritical power plants |
| title_short |
Oxide scale growth and presumed exfoliation in a 700 °c or higher steam condition: A simulation study for future operations of ultra-supercritical power plants |
| title_full |
Oxide scale growth and presumed exfoliation in a 700 °c or higher steam condition: A simulation study for future operations of ultra-supercritical power plants |
| title_fullStr |
Oxide scale growth and presumed exfoliation in a 700 °c or higher steam condition: A simulation study for future operations of ultra-supercritical power plants |
| title_full_unstemmed |
Oxide scale growth and presumed exfoliation in a 700 °c or higher steam condition: A simulation study for future operations of ultra-supercritical power plants |
| title_sort |
oxide scale growth and presumed exfoliation in a 700 °c or higher steam condition: a simulation study for future operations of ultra-supercritical power plants |
| publisher |
Elsevier |
| publishDate |
2023 |
| _version_ |
1806426244158324736 |
| score |
13.211869 |