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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: 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.

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

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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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Prediction of the shear wave velocity

Amoroso SARA

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 1, Pages 83-92 doi: 10.1007/s11709-013-0234-6

Abstract: The paper examines the correlations to obtain rough estimates of the shear wave velocity from non-seismic

Keywords： horizontal stress index shear wave velocity flat dilatometer test cone penetration test

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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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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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Chemical probe systems for assessing liquid–liquid mixing efficiencies of reactors

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10, Pages 1323-1335 doi: 10.1007/s11705-022-2275-7

Abstract: Liquid–liquid mixing, including homogeneous and heterogeneous mixing, widely exists in the chemical industry

Keywords： mixing chemical probe liquid–liquid heterogeneous

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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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High velocity impact of metal sphere on thin metallic plate using smooth particle hydrodynamics (SPH)

Hossein ASADI KALAMEH, Arash KARAMALI, Cosmin ANITESCU, Timon RABCZUK

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 2, Pages 101-110 doi: 10.1007/s11709-012-0160-z

Abstract: The modeling of high velocity impact is an important topic in impact engineering.The goal is to study the most sensitive input parameters (impact velocity and plate thickness) on the

Keywords： smoothed particle hydrodynamics high velocity impact sensitivity analysis

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Experimental study on velocity characteristics of recirculation zone in humid air non-premixed flame

GU Xin, ZANG Shusheng, GE Bing

Frontiers in Energy 2008, Volume 2, Issue 2, Pages 140-144 doi: 10.1007/s11708-008-0037-y

Abstract: examine the effect of the flow field within the recirculation zone on flame structure, the characteristic velocitydistance of the two stagnation points in humid air combustion shortens, and the minimal dimensionless velocityanalysis of axial minimal velocities on the centerline and their positions under different co-flow air velocityconditions reveals that fuel-to-air velocity ratio is the crucial parameter that governs humid air combustion

Keywords： distance bluff-body fuel-to-air velocity stagnation parameter

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Microfluidic production of liposomes through liquid–liquid phase separation in ternary droplets

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6, Pages 1017-1022 doi: 10.1007/s11705-021-2118-y

Abstract: make oil-in-water droplets, which can evolve into water-in-oil-in-water double emulsion droplets by liquid–liquid

Keywords： microfluidics liposomes ternary droplets phase separation

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definition of metabolic dysfunction-associated fatty liver disease with elevated brachial-ankle pulse wave velocity

Frontiers of Medicine 2022, Volume 16, Issue 5, Pages 714-722 doi: 10.1007/s11684-021-0888-8

Abstract: non-alcoholic fatty liver disease (NAFLD), with the progression of elevated brachial-ankle pulse wave velocity

Keywords： dysfunction-associated fatty liver disease non-alcoholic fatty liver disease fibrosis score brachial-ankle pulse wave velocity

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Energy distribution between liquid hydrogen and liquid oxygen temperatures in a Stirling/pulse tube refrigerator

Frontiers in Energy 2023, Volume 17, Issue 4, Pages 516-526 doi: 10.1007/s11708-022-0844-6

Abstract: In the present study, an SPR was designed and manufactured to work between the liquid hydrogen and liquid

Keywords： Stirling/pulse tube refrigerator displacer displacement space application phase shift energy distribution

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Theoretical study of failure in composite pressure vessels subjected to low-velocity impact and internal

Roham RAFIEE, Hossein RASHEDI, Shiva REZAEE

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 6, Pages 1349-1358 doi: 10.1007/s11709-020-0650-3

Abstract: research for predicting the failure in internally pressurized composite pressure vessels exposed to low-velocitythis purpose, layer-wise theory is employed in a composite cylinder under internal pressure and low-velocity

Keywords： composite pressure vessel low-velocity impact failure theoretical solution progressive damage modeling

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Advances and perspectives in catalysts for liquid-phase oxidation of cyclohexane

Hui LI, Yuanbin SHE, Tao WANG

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 3, Pages 356-368 doi: 10.1007/s11705-012-0903-3

Abstract: The latest progress and developments in catalysts for the oxidation of cyclohexane are reviewed. Catalytic systems for the oxidation of cyclohexane including metal supported, metal oxides, molecular sieves, metal substituted polyoxometalates, photocatalysts, organocatalysts, Gif systems, metal-organic catalysts and metalloporphyrins are discussed with a particular emphasis on metalloporphyrin catalytic systems. The advantages and disadvantages of these methods are summarized and analyzed. Finally, the development trends in the oxidation technology of cyclohexane are examined.

Keywords： cyclohexane liquid-phase oxidation catalysis

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Title Author Date Type Operation

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

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

Prediction of the shear wave velocity

Amoroso SARA

Journal Article

Study on Enterprise Development Strategy Innovation Based on Circulation Economy

Wang Xiaobin,Wang Xuejun

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

Chemical probe systems for assessing liquid–liquid mixing efficiencies of reactors

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

High velocity impact of metal sphere on thin metallic plate using smooth particle hydrodynamics (SPH)

Hossein ASADI KALAMEH, Arash KARAMALI, Cosmin ANITESCU, Timon RABCZUK

Journal Article

Experimental study on velocity characteristics of recirculation zone in humid air non-premixed flame

GU Xin, ZANG Shusheng, GE Bing

Journal Article

Microfluidic production of liposomes through liquid–liquid phase separation in ternary droplets

Journal Article

definition of metabolic dysfunction-associated fatty liver disease with elevated brachial-ankle pulse wave velocity

Journal Article

Energy distribution between liquid hydrogen and liquid oxygen temperatures in a Stirling/pulse tube refrigerator

Journal Article

Theoretical study of failure in composite pressure vessels subjected to low-velocity impact and internal

Roham RAFIEE, Hossein RASHEDI, Shiva REZAEE

Journal Article

Advances and perspectives in catalysts for liquid-phase oxidation of cyclohexane

Hui LI, Yuanbin SHE, Tao WANG

Journal Article

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