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

WANG Jianjun, YANG Xingtuan, JIANG Shengyao

Frontiers in Energy 2008, Volume 2, Issue 2,   Pages 169-173 doi: 10.1007/s11708-008-0044-z

Abstract: The result shows that the computer code can be used to simulate the static instability of a natural circulation

Keywords： HRTL-5     experiment     circulation     simulation     thermal    

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National Food Security Strategy Against the Backdrop of Domestic and International Dual Circulation

Yan Yan , Wang Xiudong , Wang Jimin , Mei Xurong ,Tang Huajun , Wu Kongming

Strategic Study of CAE 2023, Volume 25, Issue 4,   Pages 14-25 doi: 10.15302/J-SSCAE-2023.04.001

Abstract: In the context of "dual circulation" (i.e., domestic and international economic circulation) in China, clarifying the basic situation andbasic situation of food security in China and the challenges it faces in the context of "dual circulationproduction capacity, new protein resource substitution, green and lowcarbon planting and breeding circulation

Keywords： dual circulation     food security     food production capacity     green and low-carbon     planting and breedingcirculation     new protein feed    

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Study on Enterprise Development Strategy Innovation Based on Circulation Economy

Wang Xiaobin,Wang Xuejun

Strategic Study of CAE 2006, Volume 8, Issue 6,   Pages 89-91

Abstract:

Circulation economy is a new mode of economic development, and is an effective approach for new industrialization

Keywords： resource     circulation economy     innovation     enterprise    

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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

Frontiers in Energy 2011, Volume 5, Issue 1,   Pages 93-97 doi: 10.1007/s11708-010-0028-7

Abstract: 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.

Keywords： supercritical methanol     biodiesel     recovery     flash distillation    

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Countermeasures for the Development of China’s Food Nutrition and Health Industry in the Context of Dual Circulation

Liu Zelong, Li Jian,Wang Jing, Sun Baoguo

Strategic Study of CAE 2022, Volume 24, Issue 6,   Pages 72-80 doi: 10.15302/J-SSCAE-2022.06.007

Abstract: health industry is an important component of the Healthy China strategy in the context of dual circulationestablishing a food technology system based on Chinese resident health information in the context of domestic circulation, promoting domestic and international circulation through industrial diversification, and improving

Keywords： food nutrition and health     industrial development     dual circulation     industrial diversification    

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Optimization of cold end system of steam turbine

ZHAO Bin, LIU Ling, ZHANG Wenbing

Frontiers in Energy 2008, Volume 2, Issue 3,   Pages 348-353 doi: 10.1007/s11708-008-0036-z

Abstract: end system of the steam turbine was conducted from an overall consideration of the condenser and the circulation

Keywords： circulation     characteristic     analysis     optimization     condenser    

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

Yingzhong LU

Frontiers in Energy 2011, Volume 5, Issue 4,   Pages 349-357 doi: 10.1007/s11708-011-0168-4

Abstract: The proposed full-power natural circulation “Nuclear Hot Spring (NHS)” reactor could operate solely onnatural forces without complex man-made coolant circulation equipment and human-operated control systems

Keywords： natural safety reactor     full power natural circulation     sustainable world economy    

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Food Security Resilience and Risk Management Strategy in China in the Context of “Dual Circulation”

Qing Ping , Deng Xiuxin , Min Shi , Li Jian , Li Xiaoyun , Wang Yuze , Chen Tong ,Wang Zhengcong , Wu Weirong , Zhao Longqiang

Strategic Study of CAE 2023, Volume 25, Issue 4,   Pages 26-38 doi: 10.15302/J-SSCAE-2023.04.002

Abstract: China, and it holds both theoretical and practical significance in the context of the "dual circulationthe resilience of China's food security and its capacity for risk management under the "dual circulationChina's food security resilience and risk management capabilities in the context of "dual circulation

Keywords： food security resilience     risk management and control     dual circulation     an all-encompassing approach    

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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,

Engineering doi: 10.1016/j.eng.2023.06.010

Abstract: 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.

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

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Study on water environment restoration and urban water system healthy circulation

Zhang Jie and Li Dong

Strategic Study of CAE 2012, Volume 14, Issue 3,   Pages 21-26

Abstract: text-align: justify;">Studied on the law and interaction of Earth's hydrological cycle and social water circulation

Keywords： city     water environment     water system     healthy cycle    

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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

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 4,   Pages 455-462 doi: 10.1007/s11705-011-1116-x

Abstract: Simulated gas holdup and liquid circulation velocity results were compared with experimental data.

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

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Zinc Air Fuel Cell Power Station

Zhu Mei,Xu Xianzhi,Su Run

Strategic Study of CAE 2004, Volume 6, Issue 12,   Pages 62-64

Abstract: Another character of the power station is the separation circulation technology, which improves the general

Keywords： fuel cell     zinc-air fuel cell     detachable electrode     single cell     separation circulation technology    

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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

Frontiers in Energy 2020, Volume 14, Issue 4,   Pages 715-725 doi: 10.1007/s11708-020-0690-3

Abstract: The natural circulation water dynamics with a drum was adopted instead of the traditional once-through

Keywords： drum steam injection boiler     natural circulation     recovery wastewater     staged evaporation     circulating fluidized    

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A Theoretical Summary and Mathematics Expression on the Regulation of Life in Meridian (Jing-Iuo) Science

Zhang Renxiang,Zhang Renji

Strategic Study of CAE 2005, Volume 7, Issue 4,   Pages 42-46

Abstract:

The meridian (Jing-Luo) is a core principle of Chinese medicine. The meridian plays a central role in the regulation of human health and vitality. In the past 50 years,the scientific evidence has been gathered via physiological experiments to confirm the biological basis of the human meridian pathway phenomenon. Meridian Science has been established as a new branch of natural science to advance and promote the study of this important phenomenon for human life. In this paper, the authors describe the theoretical concept of the meridian and mathematics expression, its relationship to an efficient meridian circadian cycle, and its significance to human life.

Keywords： science     principal of bi-way transforming modulation in symmetry and asymmetry     diagram of 4D meridian circulation    

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The application of marine meteorological observation in tropical cyclone data assimilation

Wan Qilin,He Jinhai

Strategic Study of CAE 2012, Volume 14, Issue 10,   Pages 33-42

Abstract: wise data assimilation can be appropriate for the data assimilation of tropical cyclone multi scale circulationmeteorological observation, it is an effective approach to obtain high quality tropical cyclone initial circulation

Keywords： efficiency of data utilization     multi scale/block batch wise data assimilation     tropical cyclone initial circulation    

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Title Author Date Type Operation

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

WANG Jianjun, YANG Xingtuan, JIANG Shengyao

Journal Article

National Food Security Strategy Against the Backdrop of Domestic and International Dual Circulation

Yan Yan , Wang Xiudong , Wang Jimin , Mei Xurong ,Tang Huajun , Wu Kongming

Journal Article

Study on Enterprise Development Strategy Innovation Based on Circulation Economy

Wang Xiaobin,Wang Xuejun

Journal Article

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

Journal Article

Countermeasures for the Development of China’s Food Nutrition and Health Industry in the Context of Dual Circulation

Liu Zelong, Li Jian,Wang Jing, Sun Baoguo

Journal Article

Optimization of cold end system of steam turbine

ZHAO Bin, LIU Ling, ZHANG Wenbing

Journal Article

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

Yingzhong LU

Journal Article

Food Security Resilience and Risk Management Strategy in China in the Context of “Dual Circulation”

Qing Ping , Deng Xiuxin , Min Shi , Li Jian , Li Xiaoyun , Wang Yuze , Chen Tong ,Wang Zhengcong , Wu Weirong , Zhao Longqiang

Journal Article

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,

Journal Article

Study on water environment restoration and urban water system healthy circulation

Zhang Jie and Li Dong

Journal Article

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

Journal Article

Zinc Air Fuel Cell Power Station

Zhu Mei,Xu Xianzhi,Su Run

Journal Article

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

Journal Article

A Theoretical Summary and Mathematics Expression on the Regulation of Life in Meridian (Jing-Iuo) Science

Zhang Renxiang,Zhang Renji

Journal Article

The application of marine meteorological observation in tropical cyclone data assimilation

Wan Qilin,He Jinhai

Journal Article