کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5012465 1462813 2017 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Power cycles integration in concentrated solar power plants with energy storage based on calcium looping
ترجمه فارسی عنوان
تلفیق چرخه های قدرت در نیروگاه های خورشیدی متمرکز با ذخیره انرژی بر اساس حلقه های کلسیم
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
چکیده انگلیسی
Efficient, low-cost and environmentally friendly storage of thermal energy stands as a main challenge for large scale deployment of solar energy. This work explores the integration into concentrated solar power plants of the calcium looping process based upon the reversible carbonation/calcination of calcium oxide for thermochemical energy storage. An efficient concentrated solar power-calcium looping integration would allow storing energy in the long term by calcination of calcium carbonate thus overcoming the hurdle of variable power generation from solar. After calcination, the stored products of the reaction (calcium oxide and carbon dioxide) are brought together in a carbonator reactor whereby the high temperature exothermic reaction releases the stored energy for efficient power production when needed. This work analyses several power cycle configurations with the main goal of optimizing the performance of the overall system integration. Possible integration schemes are proposed in which power production is carried out directly (using a closed carbon dioxide Brayton power cycle) or indirectly (by means of a steam reheat Rankine cycle or a supercritical carbon dioxide Brayton cycle). The results obtained show that the highest plant efficiencies (up to 45-46%) are achievable using a closed carbon dioxide Brayton power cycle.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy Conversion and Management - Volume 149, 1 October 2017, Pages 815-829
نویسندگان
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