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期刊论文 18

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2023 4

2022 2

2020 1

2012 2

2011 3

2008 2

2006 1

2005 1

2004 1

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关键词

中华自然理念 1

企业 1

健康循环 1

农产品;智慧供应链;流通;新发展格局;高质量发展 1

分体式电极 1

分离循环技术 1

创新 1

前沿新材料,产业基础能力,尖端科技,材料基因工程,双循环,碳达峰与碳中和 1

单电池 1

双循环;粮食安全;粮食产能;绿色低碳;种养循环;新型蛋白饲料 1

四维经络循行图 1

城市 1

多尺度/分块逐批资料同化 1

对称与不对称转换调制原理 1

循环经济 1

民用航空发动机;双循环;科技创新;自主适航;国际合作 1

水环境 1

水系统 1

海洋气象观测 1

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Simulation of flow excursion and thermal siphon under natural circulation condition with lower pressure

WANG Jianjun, YANG Xingtuan, JIANG Shengyao

《能源前沿(英文)》 2008年 第2卷 第2期   页码 169-173 doi: 10.1007/s11708-008-0044-z

摘要: The simulation of flow excursion was conducted under HRTL-5 condition. The mechanism analysis and the simulation of thermal siphon process were also performed. The result shows that the computer code can be used to simulate the static instability of a natural circulation system and the simulation of flow excursion almost conforms to the experiment result.

关键词: HRTL-5     experiment     circulation     simulation     thermal    

“双循环”背景下国家粮食安全战略研究

闫琰,王秀东,王济民,梅旭荣,唐华俊,吴孔明

《中国工程科学》 2023年 第25卷 第4期   页码 14-25 doi: 10.15302/J-SSCAE-2023.04.001

摘要: Academy of Engineering project “Research on National Grain Security Strategy in the Context of Dual Circulation

关键词: 双循环;粮食安全;粮食产能;绿色低碳;种养循环;新型蛋白饲料    

基于循环经济的企业发展战略创新研究

王孝斌,王学军

《中国工程科学》 2006年 第8卷 第6期   页码 89-91

摘要:

循环经济走新型工业化道路、实现可持续发展的有效途径。讨论了企业发展循环经济应重新审视和调整发展战略,在观念、组织、管理、制度、技术、产品等方面要有所创新的问题。

关键词: 资源     循环经济     创新     企业    

Simulation analysis of methanol flash distillation circulation process in biodiesel production with supercritical

Zhengjiao TANG, Cunwen WANG, Weiguo WANG, Jia GUO, Yuanxin WU, Jinfang CHEN, Yigang DING

《能源前沿(英文)》 2011年 第5卷 第1期   页码 93-97 doi: 10.1007/s11708-010-0028-7

摘要: High methanol-to-oil ratio is required to obtain a high conversion of oil for the production of biodiesel with supercritical methanol. Recovering the methanol of a stream issuing from a transesterification supercritical reactor by flash distillation instead of evaporation was analyzed. The one-stage and two-stage flash distillation processes were presented and compared. The difference of the recovery percentage of methanol of the above two flash processes is less than 0.5% and the methanol concentration in the vapor for the one-stage process decreases rapidly when feed temperature increases. The process in which the product of transesterification of soybean oil with supercritical methanol is cooled to an appropriate temperature (about 240°C) first and then flashed was put forward. The effect of cooling temperature, feed pressure and flash pressure on methanol concentration and recovery percentage was investigated. According to this study, when the feed pressure range is 15–30 MPa, the flash pressure equals 0.4 MPa, and cooling temperature range is 240°C–250°C, the recovery percentage of methanol is not less than 85%, and the concentration of the vapor in mass fraction of methanol is approximately 99%. Thus, the vapor leaving the flash tank can be directly circulated to the transesterification reactor.

关键词: supercritical methanol     biodiesel     recovery     flash distillation    

“双循环”新格局下我国食品营养与健康产业发展策略研究

刘泽龙,李健,王静,孙宝国

《中国工程科学》 2022年 第24卷 第6期   页码 72-80 doi: 10.15302/J-SSCAE-2022.06.007

摘要:

食品营养与健康产业是“双循环”新发展格局下实施健康中国战略的重要构成。本文梳理了食品营养与健康产业的发展态势,分析了“双循环”新格局下产业发展面临的挑战以及新格局对产业发展的影响。依据国家整体布局和规划,分别从立足“内循环”构建基于我国国民健康基础信息的食品产业技术体系、以产业多元化发展促进“内外双循环”、利用好“两个市场、两种资源”提升产业影响力等角度提出了突破路径。研究建议:注重食品营养与健康领域创新资源投入,加快高质量成果产出;加强政策扶植引导,增强企业国际竞争力;完善“产学研”协同体系,促进成果转化;加大人才培养力度,提供专业人才支撑;完善行业监管体制,营造健康市场环境;加强食品营养与健康教育宣传,提升公民健康素养。

关键词: 食品营养与健康;产业发展;“双循环”;产业多元化    

Optimization of cold end system of steam turbine

ZHAO Bin, LIU Ling, ZHANG Wenbing

《能源前沿(英文)》 2008年 第2卷 第3期   页码 348-353 doi: 10.1007/s11708-008-0036-z

摘要: An optimization of the movement characteristic of the cold end system of the steam turbine was conducted from an overall consideration of the condenser and the circulation water pump. An analysis method based on thermodynamics theory

关键词: circulation     characteristic     analysis     optimization     condenser    

A perspective of “Nuclear Hot Spring” for long-term sustainable economy of the world

Yingzhong LU

《能源前沿(英文)》 2011年 第5卷 第4期   页码 349-357 doi: 10.1007/s11708-011-0168-4

摘要: The rapid growth of human economy in the late 20th century gave rise to great concern over sustainability of the world. A pessimistic “Full World Model” forecasts that human economy could not develop further. The nuclear fission (and fusion later), however, could release huge amount of energy to create sufficient useful material resources and turn the said pessimistic modelinto a new optimistic “Sustainable World Model”.The dilemma of nuclear energy (Military Giant vs. Civil Dwarf) jeopardizes its performance as a “Technologic Fixer”. According to Mother Nature’s teachings, the elimination of the root-causes of the design-based risk factors could solve this problem. Recent technology break-through from inherent safety to natural safety has been made in China. The proposed full-power natural circulation “Nuclear Hot Spring (NHS)” reactor could operate solely on natural forces without complex man-made coolant circulation equipment and human-operated control systems. The cheap, unlimited supply of energy from nuclear energy could change the geopolitics forever, and finally eliminate the root-causes of most international and regional conflicts.

关键词: natural safety reactor     full power natural circulation     sustainable world economy    

“双循环”背景下我国粮食安全韧性及风险管控战略研究

青平,邓秀新,闵师,李剑,李晓云,王玉泽,陈通,王正聪,吴伟荣,赵龙强

《中国工程科学》 2023年 第25卷 第4期   页码 26-38 doi: 10.15302/J-SSCAE-2023.04.002

摘要: Academy of Engineering project “Research on National Food Security Strategy in the Context of Dual Circulation

关键词: 粮食安全韧性;风险管控;“双循环”;大食物观;粮食贸易    

Mass Transfer-Promoted Fe2+/Fe3+ Circulation Steered by 3D Flow-Through Co-Catalyst System Toward Sustainable

Weiyang Lv,Hao Li,Jinhui Wang,Lixin Wang,Zenglong Wu,Yuge Wang,Wenkai Song,Wenkai Cheng,Yuyuan Yao,

《工程(英文)》 doi: 10.1016/j.eng.2023.06.010

摘要: Realizing fast and continuous generation of reactive oxygen species (ROSs) via iron-based advanced oxidation processes (AOPs) is significant in the environmental and biological fields. However, current AOPs assisted by co-catalysts still suffer from the poor mass/electron transfer and non-durable promotion effect, giving rise to the sluggish Fe2+/Fe3+ cycle and low dynamic concentration of Fe2+ for ROS production. Herein, we present a three-dimensional (3D) macroscale co-catalyst functionalized with MoS2 to achieve ultra-efficient Fe2+ regeneration (equilibrium Fe2+ ratio of 82.4%) and remarkable stability (more than 20 cycles) via a circulating flow-through process. Unlike the conventional batch-type reactor, experiments and computational fluid dynamics simulations demonstrate that the optimal utilization of the 3D active area under the flow-through mode, initiated by the convection-enhanced mass/charge transfer for Fe2+ reduction and then strengthened by MoS2-induced flow rotation for sufficient reactant mixing, is crucial for oxidant activation and subsequent ROS generation. Strikingly, the flow-through co-catalytic system with superwetting capabilities can even tackle the intricate oily wastewater stabilized by different surfactants without the loss of pollutant degradation efficiency. Our findings highlight an innovative co-catalyst system design to expand the applicability of AOPs based technology, especially in large-scale complex wastewater treatment.

关键词: Advanced oxidation processes     3D co-catalyst     Flow-through mode     Enhanced mass transfer     Complex wastewater treatment    

水环境恢复与城市水系统健康循环研究

张杰,李冬

《中国工程科学》 2012年 第14卷 第3期   页码 21-26

摘要:

研究了地球上水文循环及社会水循环的规律和互动关系,指出水环境、水资源和水循环是地球上水汽运动的统一体,剖析了当代水危机的根源,提出水环境恢复和社会用水健康循环理论及实施方略,并在多座城市水系统规划应用中取得了良好效果。

关键词: 城市     水环境     水系统     健康循环    

CFD simulation of the hydrodynamics in an internal air-lift reactor with two different configurations

Mona EBRAHIMIFAKHAR, Elmira MOHSENZADEH, Sadegh MORADI, Mostafa MORAVEJI, Mahmoud SALIMI

《化学科学与工程前沿(英文)》 2011年 第5卷 第4期   页码 455-462 doi: 10.1007/s11705-011-1116-x

摘要: Computational fluid dynamics (CFD) was used to investigate the hydrodynamic parameters of two internal airlift bioreactors with different configurations. Both had a riser diameter of 0.1 m. The model was used to predict the effect of the reactor geometry on the reactor hydrodynamics. Water was utilized as the continuous phase and air in the form of bubbles was applied as the dispersed phase. A two-phase flow model provided by the bubbly flow application mode was employed in this project. In the liquid phase, the turbulence can be described using the - model. Simulated gas holdup and liquid circulation velocity results were compared with experimental data. The predictions of the simulation are in good agreement with the experimental data.

关键词: airlift reactor     gas holdup     liquid circulation velocity     bubbly flow     computational fluid dynamics (CFD)    

锌空燃料电池电站

朱梅,徐献芝,苏润

《中国工程科学》 2004年 第6卷 第12期   页码 62-64

摘要:

燃料电池发电技术已经受到人们越来越多的重视。介绍了利用锌空气燃料电池技术建设电站,利用分体式电极技术制造世界上最大的单电池,该电站采用独特的分离循环技术,可以提高电站总体效率。给出建设电站的相关参数。

关键词: 燃料电池     锌空气燃料电池     分体式电极     单电池     分离循环技术    

Design and application of a novel coal-fired drum boiler using saline water in heavy oil recovery

Junping GU, Yuxin WU, Liping WU, Man ZHANG, Hairui YANG, Junfu LYU

《能源前沿(英文)》 2020年 第14卷 第4期   页码 715-725 doi: 10.1007/s11708-020-0690-3

摘要: In this paper, the design and operation of a novel coal-fired circulating fluidized bed (CFB) drum boiler that can generate superheated steam using saline water were introduced. The natural circulation water dynamics with a drum was adopted instead of the traditional once-through steam generator (OTSG) design, so that superheated steam can be generated for the better performance of the steam assisted gravity drainage (SAGD) technology in heavy oil recovery. The optimized staged evaporation method was proposed to further decrease the salinity of water in the clean water section of the boiler. The evaporating pipes of the salted water section were rearranged in the back pass of the boiler, where the heat load is low, to further improve the heat transfer safety. A CFB combustion technology was used for coal firing to achieve a uniform heat transfer condition with low heat flux. Pollutant control technologies were adopted to reduce pollutant emissions. Based on the field test, the recommended water standard for the coal-fired CFB drum boilers was determined. With the present technology, the treated recovery wastewater can be reused in steam-injection boilers to generate superheated steam. The engineering applications show that the boiler efficiency is higher than 90%, the blowdown rate is limited within 5.5%, and the superheat of steam can reach up to 30 K. Besides, the heavy oil recovery efficiency is significantly improved. Moreover, the pollutant emissions of SO , NO and dust are controlled within the ranges of 20–90 mg/(N·m ), 30–90 mg/(N·m ) and 2–10 mg/(N·m ) respectively.

关键词: drum steam injection boiler     natural circulation     recovery wastewater     staged evaporation     circulating fluidized bed (CFB)    

经络科学对生命调节现象的理论概括及数学表达

张人骧,张人骥

《中国工程科学》 2005年 第7卷 第4期   页码 42-46

摘要:

总结50年实验,证明人体经络通路现象具有生物学客观真实性,可能有助于进一步总结中华传统医药学宝贵经验;概括经络科学对人体生命调节现象的理论性概念,对与生命共存的人体经络循行给出数学表述。

关键词: 中华自然理念     经络科学     对称与不对称转换调制原理     四维经络循行图     经络贯通效率    

海洋气象观测系统在热带气旋资料同化中的应用

万齐林,何金海

《中国工程科学》 2012年 第14卷 第10期   页码 33-42

摘要:

在分析南海海洋气象观测现状和发展规划的基础上,发现有必要发展合适的资料同化技术,提高资料利用效率,才能克服海洋气象资料相对缺乏来提升数值预报水平。利用多尺度/分块逐批资料同化技术,进行热带气旋资料同化试验。结果表明:多尺度/分块逐批资料同化技术能够适应具有多尺度特征的热带气旋资料同化,较好地满足热带气旋资料同化对流依赖背景误差协方差同化技术的要求,能够较合理高效地利用海洋气象观测资料。基于多尺度/分块逐批资料同化技术,加强海洋气象观测系统的应用,是形成高质量热带气旋初值环流的一种有效途径。

关键词: 海洋气象观测     资料利用效率     多尺度/分块逐批资料同化     热带气旋初值环流    

标题 作者 时间 类型 操作

Simulation of flow excursion and thermal siphon under natural circulation condition with lower pressure

WANG Jianjun, YANG Xingtuan, JIANG Shengyao

期刊论文

“双循环”背景下国家粮食安全战略研究

闫琰,王秀东,王济民,梅旭荣,唐华俊,吴孔明

期刊论文

基于循环经济的企业发展战略创新研究

王孝斌,王学军

期刊论文

Simulation analysis of methanol flash distillation circulation process in biodiesel production with supercritical

Zhengjiao TANG, Cunwen WANG, Weiguo WANG, Jia GUO, Yuanxin WU, Jinfang CHEN, Yigang DING

期刊论文

“双循环”新格局下我国食品营养与健康产业发展策略研究

刘泽龙,李健,王静,孙宝国

期刊论文

Optimization of cold end system of steam turbine

ZHAO Bin, LIU Ling, ZHANG Wenbing

期刊论文

A perspective of “Nuclear Hot Spring” for long-term sustainable economy of the world

Yingzhong LU

期刊论文

“双循环”背景下我国粮食安全韧性及风险管控战略研究

青平,邓秀新,闵师,李剑,李晓云,王玉泽,陈通,王正聪,吴伟荣,赵龙强

期刊论文

Mass Transfer-Promoted Fe2+/Fe3+ Circulation Steered by 3D Flow-Through Co-Catalyst System Toward Sustainable

Weiyang Lv,Hao Li,Jinhui Wang,Lixin Wang,Zenglong Wu,Yuge Wang,Wenkai Song,Wenkai Cheng,Yuyuan Yao,

期刊论文

水环境恢复与城市水系统健康循环研究

张杰,李冬

期刊论文

CFD simulation of the hydrodynamics in an internal air-lift reactor with two different configurations

Mona EBRAHIMIFAKHAR, Elmira MOHSENZADEH, Sadegh MORADI, Mostafa MORAVEJI, Mahmoud SALIMI

期刊论文

锌空燃料电池电站

朱梅,徐献芝,苏润

期刊论文

Design and application of a novel coal-fired drum boiler using saline water in heavy oil recovery

Junping GU, Yuxin WU, Liping WU, Man ZHANG, Hairui YANG, Junfu LYU

期刊论文

经络科学对生命调节现象的理论概括及数学表达

张人骧,张人骥

期刊论文

海洋气象观测系统在热带气旋资料同化中的应用

万齐林,何金海

期刊论文