کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6631704 1424944 2018 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Impact of increased power plant cycling on the oxidation and corrosion of coal-fired superheater materials
ترجمه فارسی عنوان
تأثیر افزایش دوچرخه سواری نیروگاه بر اکسیداسیون و خوردگی مواد شارژر زغال سنگ
کلمات کلیدی
انعطاف پذیری نیروگاه، اکسیداسیون ایزوترمال، اکسیداسیون سیکل، خوردگی درجه حرارت بالا، سوپرسترس ها،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
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 severe under cyclic conditions than under isothermal conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 220, 15 May 2018, Pages 521-534
نویسندگان
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