The search result changed since you submitted your search request. Documents might be displayed in a different sort order.
  • search hit 4 of 283
Back to Result List

Impact of increased power plant cycling on the oxidation and corrosion of coal-fired superheater materials

  • As power generation from variable renewable energy sources such as wind and solar power continues to increase in the future, fewer baseload power plants will be needed. As a result, high operational flexibility is becoming a vital requirement for conventional power plants to allow for the smooth integration of the variable renewable energy sources (v-RES) into the grid. To understand the impact of high operational flexibility (increased cycling) for coal-fired power plant materials, five commercial coal boiler superheater and reheater materials were investigated under isothermal and cyclic conditions for 1000 h each. The candidate alloys investigated were: T91, VM12-SHC, TP347-HFG, DMV304 HCu and DMV310 N. The results (weight change kinetics and metallographic analysis) after exposure at a metal surface temperature of 650 °C clearly showed the impact of increased flexibility on the corrosion and oxidation of the materials. Oxide growth (weight gain), metal loss, oxide spallation, and grain boundary attack were found to be more severeAs power generation from variable renewable energy sources such as wind and solar power continues to increase in the future, fewer baseload power plants will be needed. As a result, high operational flexibility is becoming a vital requirement for conventional power plants to allow for the smooth integration of the variable renewable energy sources (v-RES) into the grid. To understand the impact of high operational flexibility (increased cycling) for coal-fired power plant materials, five commercial coal boiler superheater and reheater materials were investigated under isothermal and cyclic conditions for 1000 h each. The candidate alloys investigated were: T91, VM12-SHC, TP347-HFG, DMV304 HCu and DMV310 N. The results (weight change kinetics and metallographic analysis) after exposure at a metal surface temperature of 650 °C clearly showed the impact of increased flexibility on the corrosion and oxidation of the materials. Oxide growth (weight gain), metal loss, oxide spallation, and grain boundary attack were found to be more severe under cyclic conditions than under isothermal conditions.show moreshow less

Export metadata

Additional Services

Share in Twitter Search Google Scholar
Metadaten
Author:Abang, Roger Atini, Weiß, SabineORCiDGND, Krautz, Hans JoachimGND
DOI:https://doi.org/10.1016/j.fuel.2018.02.047
ISSN:0016-2361
Titel der Quelle (English):Fuel
Document Type:Wissenschaftlicher Zeitschriftenartikel referiert
Language:English
Erscheinungsjahr:2018
Tag:Power plant flexibility, Isothermal oxidation, Cyclic oxidation, High temperature corrosion, Superheaters
Band / Jahrgang:2018
Issue:220
First Page:521
Last Page:534
Institution / Subject:Fakultät 3 Maschinenbau, Elektro- und Energiesysteme / FG Kraftwerkstechnik
Fakultät 3 Maschinenbau, Elektro- und Energiesysteme / FG Metallkunde und Werkstofftechnik