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Jinyuan SHI,Zhicheng DENG,Yong WANG,Yu YANG
《能源前沿(英文)》 2016年 第10卷 第1期 页码 88-104 doi: 10.1007/s11708-015-0387-1
关键词: 700°C ultra-super-critical unit steam turbine very high pressure rotor structure strength design strength design criteria finite element analysis
Cooling performance of grid-sheets for highly loaded ultra-supercritical steam turbines
Dieter BOHN , Robert KREWINKEL , Shuqing TIAN ,
《能源前沿(英文)》 2009年 第3卷 第3期 页码 313-320 doi: 10.1007/s11708-009-0036-7
关键词: steam turbines 700& deg C-technology numerical inverstigation cooling
邵建雄,刘景旺,袁达夫
《中国工程科学》 2011年 第13卷 第7期 页码 104-110
分析了三峡水轮发电机组设计中必须考虑的主要问题;总结了所进行的关键技术研究;通过关键技术问题研究,使得三峡水轮发电机组参数达到最优化。机组运行结果表明三峡水轮发电机组性能良好,能够长期安全、稳定、高效运行,从而有效地验证了对三峡巨型水轮发电机组的总体技术设计是科学合理的。
张晓鲁
《中国工程科学》 2012年 第14卷 第12期 页码 52-57
我国正处于加快转变经济发展方式的关键时期,能源需求持续增长,生态环境保护和气候压力对社会经济可持续发展的约束日渐严重。我国一次能源的结构特点决定了我国电力供应以燃煤发电为主的格局,而燃煤发电既是用煤大户也是用水大户,同时还是污染物排放大户。优化煤电发展,向集约化、环保化发展转变是电力工业的战略调整。本文论证了我国煤电技术向清洁化发展的战略思路,简要回顾了超超临界技术和大型空冷技术的研发成果与产业化推广现状,论述了这两项先进煤电技术对电力工业发展转型的支撑作用。
Ultra-precision ductile grinding of BK7 using super abrasive diamond wheel
ZHAO Qingliang, Brinksmeier Ekkard, Riemer Oltmann, Rickens Kai
《机械工程前沿(英文)》 2007年 第2卷 第3期 页码 350-355 doi: 10.1007/s11465-007-0061-3
关键词: ELID peripheral electrolytic in-process nickel-electroplated monolayer measurement
700 °C 及以上蒸汽温度下先进USC发电厂用耐热材料的研究和开发 Review
Fujio Abe
《工程(英文)》 2015年 第1卷 第2期 页码 211-224 doi: 10.15302/J-ENG-2015031
欧洲、美国、日本已开展蒸汽温度为700 °C 及以上的先进超超临界(A-USC) 发电厂用材料开发项目,以实现更高能效和低二氧化碳排放量。近年来中国、印度等也开展了上述项目的开发和研究。这些项目涉及采用镍基合金更换马氏体9%~12%Cr 钢以用于最高温度的锅炉和涡轮部件,从而在700 °C 及以上温度下提供充足的蠕变强度。为尽量减少对昂贵的镍基合金的需求,马氏体9%~12%Cr 钢可用于A-USC 电厂中的次高温部件(最高温度不超过650 °C)。
关键词: 镍基合金 9 %~12 % Cr 钢 蠕变强度 蠕变疲劳性质 焊缝 晶界 显微结构 &gamma &prime M23C6 碳化物
Key technical innovations in the construction of Baihetan Hydropower Station Project
《工程管理前沿(英文)》 2023年 第10卷 第2期 页码 367-372 doi: 10.1007/s42524-023-0253-5
关键词: ultra-high arch dam columnar jointed basalt low-heat cement concrete temperature controlled crack prevention million-kilowatt unit intelligent construction
A new heat transfer correlation for supercritical fluids
Yanhua YANG, Xu CHENG, Shanfang HUANG
《能源前沿(英文)》 2009年 第3卷 第2期 页码 226-232 doi: 10.1007/s11708-009-0022-0
关键词: super critical fluids heat transfer circular tubes prediction method
WANG, C. H. AN, J. WANG, Q. XU
《机械工程前沿(英文)》 2017年 第12卷 第2期 页码 193-202 doi: 10.1007/s11465-017-0448-8
Large-aperture potassium dihydrogen phosphate (KDP) crystals are widely used in the laser path of inertial confinement fusion (ICF) systems. The most common method of manufacturing half-meter KDP crystals is ultra-precision fly cutting. When processing KDP crystals by ultra-precision fly cutting, the dynamic characteristics of the fly cutting machine and fluctuations in the fly cutting environment are translated into surface errors at different spatial frequency bands. These machining errors should be suppressed effectively to guarantee that KDP crystals meet the full-band machining accuracy specified in the evaluation index. In this study, the anisotropic machinability of KDP crystals and the causes of typical surface errors in ultra-precision fly cutting of the material are investigated. The structures of the fly cutting machine and existing processing parameters are optimized to improve the machined surface quality. The findings are theoretically and practically important in the development of high-energy laser systems in China.
关键词: ultra-precision fly cutting large-aperture KDP crystals spatial frequency processing error
Critical review of studies on building information modeling (BIM) in project management
C. CHAN, Xiaozhi MA, Wen YI, Xin ZHOU, Feng XIONG
《工程管理前沿(英文)》 2018年 第5卷 第3期 页码 394-406 doi: 10.15302/J-FEM-2018203
Building information modeling (BIM) and project management are two major research topics that accommodate large volumes of research efforts. BIM has been interpreted as a process technology that aids in enhancing project management. Hence, the investigation from an interdisciplinary perspective of the two concepts may bring new insights to understanding related research. In this paper, a structural approach is adopted in reviewing BIM studies in project management from 2005 to 2017 within identified target journals. This review aims to classify the major research directions and topics for BIM research in project management. Moreover, given BIM’s potential for application in project management, this paper attempts to establish a fundamental research foundation for a new paradigm of project management that incorporates BIM, namely, BIM-based project management. The preliminary result suggests that BIM research in project management develops drastically in the examined duration. The research directions of BIM studies in project management include enabling BIM as a technology in project management; BIM application as a solution for specific project management scopes; integration issues of BIM that have been brought to project management; institutional environment and regulatory governance of BIM in realizing project management strategies; and analysis of effects and strategies of BIM adoption and implementation in projects. The directions and trends are then analyzed to develop a research route for BIM studies in project management. Finally, conclusions focus on the relations of the research directions, as well as the contributions and theoretical implications of this review. Future research areas are also recommended.
关键词: building information modeling (BIM) project management review BIM-based project management
宋之平
《中国工程科学》 2002年 第4卷 第2期 页码 22-27
文章认为优化火电结构应放在超临界化上,使超临界机组和超超临界机组在我国火电中占据举足轻重的比例。而且这些机组的主要性能指标以及环保性能等应不逊于同类机组的国际水平。论述了超临界技术在优化火电结构的特殊作用,指出超临界化已被证明是改造和优化火电结构的一种成功的道路,阐明了我国实施这一发展道路的必要性和可能性。
A solution to stochastic unit commitment problem for a wind-thermal system coordination
B. SARAVANAN,Shreya MISHRA,Debrupa NAG
《能源前沿(英文)》 2014年 第8卷 第2期 页码 192-200 doi: 10.1007/s11708-014-0306-x
关键词: unit commitment (UC) randomness wind generation univariate chance constrained
Solving unit commitment problem using a novel version of harmony search algorithm
Roozbeh MORSALI,Tohid JAFARI,Amirhossein GHODS,Mohammad KARIMI
《能源前沿(英文)》 2014年 第8卷 第3期 页码 297-304 doi: 10.1007/s11708-014-0309-7
关键词: generation scheduling harmony search (HS) algorithm intelligent technique unit commitment
标题 作者 时间 类型 操作
Structure improvement and strength finite element analysis of VHP welded rotor of 700°C USC steam turbine
Jinyuan SHI,Zhicheng DENG,Yong WANG,Yu YANG
期刊论文
Cooling performance of grid-sheets for highly loaded ultra-supercritical steam turbines
Dieter BOHN , Robert KREWINKEL , Shuqing TIAN ,
期刊论文
Ultra-precision ductile grinding of BK7 using super abrasive diamond wheel
ZHAO Qingliang, Brinksmeier Ekkard, Riemer Oltmann, Rickens Kai
期刊论文
Full-band error control and crack-free surface fabrication techniques for ultra-precision fly cutting
WANG, C. H. AN, J. WANG, Q. XU
期刊论文
Critical review of studies on building information modeling (BIM) in project management
C. CHAN, Xiaozhi MA, Wen YI, Xin ZHOU, Feng XIONG
期刊论文
A solution to stochastic unit commitment problem for a wind-thermal system coordination
B. SARAVANAN,Shreya MISHRA,Debrupa NAG
期刊论文