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Modeling and Energy Efficiency Analysis of Thermal Power Plant with High Temperature Thermal Energy Storage (HTTES);高温储热式热电系统建模与能效分析
Authors: ZHANG Hongwei,LIANG Wenbin,LIU Junqing
Institution:National Institute of Clean and Low Carbon Energy
Keywords:thermal power plant, peak shaving, high temperature thermal energy storage, wind power accumulation
doi:https://doi.org/10.1007/s11630-020-1310-6
Volume 29, Issue 4: 1025-1035, 2020 | PDF
Article
Published: July 5, 2020
Views:12
Abstract: 中文导读—本文介绍了一种满足热、电负荷平衡要求的热电厂灵活运行策略。本文主要研究将高温储热装置(HTTES)引入火力发电厂蒸汽-水循环中的可行性,在再热管道的冷(热)段确定合适的HTTES并测试其热效率。采用Thermoflex进行仿真,并在软件平台上实现了400MW亚临界燃煤热电厂模型。仿真结果表明,采用弃风电(谷电)作为HTTES热源,将存储的高温热能释放回汽轮发电机发电是可行的,分析了...
Performance Analysis and Evaluation of a Supercritical CO2 Rankine Cycle Coupled with an Absorption Refrigeration Cycle;带吸收式制冷循环的超临界CO2朗肯循环性能分析与评估
Authors: CHEN Yi,XU Dongjie,CHEN Zheng
Institution:China Electric Power Planning & Engineering Institute
Keywords:supercritical CO2 cycle, absorption refrigeration cycle, sensible heat source, solar energy, thermodynamic analysis
doi:https://doi.org/10.1007/s11630-020-1166-9
Volume 29, Issue 4: 1036-1052, 2020 | PDF
Article
Published: July 5, 2020
Views:12
Abstract: 在我们的工业生产和生活中存在着大量的显热余热资源,如烟气、工业废热等。充分回收利用这些余热资源对于节能减排具有重要意义。超临界CO2发电技术在该领域具有较好的发展前景。本文提出了一种带吸收式制冷循环的超临界CO2朗肯循环发电系统,该系统由超临界CO2回热循环、单/双效复合LiBr-H2O吸收式制冷循环、包含真空管集热器和储热水箱的太阳能供热子系统等三部分构成。根据系统是否包括太阳能供热子系统...
Equivalent Cycle and Optimization of Auto-Cascade Absorption Refrigeration Systems;自行复叠吸收式制冷系统的等效循环及优化
Authors: HE Yijian,CHEN Guangming
Institution:Institute of Refrigeration and Cryogenics
Keywords:auto-cascade absorption refrigeration, equivalent cycle, thermodynamic perfect degree, entropy generation, optimizing
doi:https://doi.org/10.1007/s11630-020-1333-z
Volume 29, Issue 4: 1053-1062, 2020 | PDF
Article
Published: July 5, 2020
Views:12
Abstract: 自行复叠吸收式制冷(ACAR)系统是一类利用低品位热实现低温制冷的新循环。本文建立了可逆ACAR系统的等效热力学循环过程,并构建了T-s图。根据热力学第一定律和第二定律,推导得到了可逆ACAR系统性能系数计算公式。然后,构建了不可逆ACAR系统的等效循环。基于热力学过程熵产最小原则,对不可逆ACAR系统进行了优化。得到了自行复叠过程的最优热流分配比,即在冷凝温度与自行复叠温度下冷凝放热过程的...
Operation Optimization of Liquid Cooling Systems in Data Centers by the Heat Current Method and Artificial Neural Network;应用热量流法和人工神经网络的数据中心液冷系统运行优化
Authors: SHAO Wei,CHEN Qun,HE Kelun
Institution:Tsinghua University
Keywords:liquid cooling system, energy conservation, heat current method, global heat transfer constraints, artificial neural network
doi:https://doi.org/10.1007/s11630-020-1283-5
Volume 29, Issue 4: 1063-1075, 2020 | PDF
Article
Published: July 5, 2020
Views:13
Abstract: 液冷系统由于具备更好的冷却能力和更低的能耗逐渐引起广泛关注。为给数据中心的间接液冷系统运行提供一种有效的优化方法,本文首先搭建了液冷系统实验平台并通过热量流法建立系统的整体传热约束。特别指出的是,约束中不同工况下的各换热器热导是通过基于历史数据构建的人工神经网络模型预测的。基于此,结合系统整体的传热和流动约束,以系统总泵功耗最小为目标,应用拉格朗日乘子法构建系统的整体优化模型,借助相应的求解...
Research and Development of Supercritical Carbon Dioxide Coal-Fired Power Systems;超临界二氧化碳燃煤发电系统研究进展
Authors: LI Zhaozhi,LIU Xuejiao,SHAO Yingjuan
Keywords:S-CO2 cycle, coal-fired power plant, thermal efficiency, boiler
doi:https://doi.org/10.1007/s11630-020-1282-6
Volume 29, Issue 3: 546-575, 2020 | PDF
Review
Published: May 5, 2020
Views:89
Primary Frequency Control Ability Evaluation of Valve Opening in Thermal Power Units Based on Artificial Neural Network;基于神经网络的火电机组阀门一次调频能力评估
Authors: LIAO Jinlong,LUO Zhihao,YIN Feng
Keywords:primary frequency control, valve opening, main steam pressure, thermal power unit, artificial neural network, evaluation
doi:https://doi.org/10.1007/s11630-019-1203-8
Volume 29, Issue 3: 576-586, 2020 | PDF
Article
Published: May 14, 2020
Views:59
Design and Optimization of a Full-Generation System for Marine LNG Cold Energy Cascade Utilization;一种船用LNG冷能梯级利用全发电系统的设计及优化
Authors: SUN Xiaofei,YAO Shouguang,XU Jinjin
Keywords:LNG, cold energy utilization, CO2, transcritical, Rankine cycle, genetic algorithm
doi:https://doi.org/10.1007/s11630-019-1161-1
Volume 29, Issue 3: 587-596, 2020 | PDF
Article
Published: May 5, 2020
Views:74
Quantification on the Effects of Liquid-Vapor Separation in Air-Conditioning System by using Advanced Exergy Analysis;高级㶲分析量化气液分离式换热器对空调系统的影响
Authors: LI Yunhai,LIN Xu,CHEN Jianyong
Keywords:air-conditioning system, liquid-vapor separation, advanced exergy analysis, avoidable exergy destruction
doi:https://doi.org/10.1007/s11630-020-1295-1
Volume 29, Issue 3: 597-608, 2020 | PDF
Article
Published: May 5, 2020
Views:71
Reduction Kinetics of Fe-based Oxygen Carriers Using Syngas in a Honeycomb Fixed-Bed Reactor for Chemical-Looping Combustion;蜂窝固定床反应器中用合成气的铁基氧载体的化学循环燃烧还原动力学研究
Authors: LIU Xiangyu,ZHANG Hao,HONG Hui
Keywords:chemical-looping combustion, honeycomb reactor, reaction kinetics
doi:https://doi.org/10.1007/s11630-020-1255-9
Volume 29, Issue 1: 13-24, 2020 | PDF
Article
Published: Jan. 5, 2020
Views:34
Material Compatibility of Hexamethyldisiloxane as Organic Rankine Cycle Working Fluids at High Temperatures;六甲基二硅氧烷作为高温有机朗肯循环工质的材料相容性研究
Authors: DAI Xiaoye,SHI Lin,QIAN Weizhong
Keywords:organic Rankine cycle (ORC), material compatibility, high temperatures, hexamethyldisiloxane (MM)
doi:https://doi.org/10.1007/s11630-019-1147-z
Volume 29, Issue 1: 25-31, 2020 | PDF
Article
Published: Jan. 5, 2020
Views:38