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- W4312951283 abstract "回热过程对朗肯循环热效率的提升起着重要作用, 但当前有关回热的研究仅局限在亚临界区域, 并未对超临界区域进行深入的探索. 本文首次提出了超临界回热方式, 构建了超临界回热循环, 从效率角度探明了该回热过程的优势. 以某二次再热燃煤发电系统为例, 本文基于热力学第一、二定律对其与BEST小机回热进行热力学理论计算与对比分析. 结果表明, 超临界回热可有效提高发电效率, 在本文案例中, 当主汽参数为32MPa、610/625/622oC时, 所提出的两种超临界回热过程可在发电效率47.57%基础上, 分别提升0.96%与1.02%, BEST小机回热可使发电效率提升0.1%. 同时发现 BEST小机回热可有效降低循环回热过程的㶲损, 超临界回热则可大幅降低锅炉㶲损, 当两者耦合时, 可以实现效率的进一步提升（48.7%和48.76%）. 本文提出的超临界回热过程是在亚临界区域回热的基础上, 突破瓶颈, 进一步实现了在超临界区域的回热, 是循环回热优化的进一步发展." @default.
- W4312951283 created "2023-01-05" @default.
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- W4312951283 date "2023-05-01" @default.
- W4312951283 modified "2023-10-16" @default.
- W4312951283 title "Construction and analysis of the thermal cycle of the supercritical regenerative coal-fired power generation system" @default.
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- W4312951283 doi "https://doi.org/10.1360/sst-2022-0292" @default.
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