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Measurement and correlation of supercritical CO

Hiroshi MACHIDA, Ryosuke TAGUCHI, Yoshiyuki SATO, Louw J. FLOURUSSE, Cor J. PETERS, Richard L. SMITH

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 1,   Pages 12-19 doi: 10.1007/s11705-009-0151-3

Abstract: combined with supercritical fluid technology hold great promise as working solvents for developing compactprocesses.

Keywords： compact processes     chiral ionic liquids     separations     thermodynamic properties     equations of state    

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Creep of brazed plate-fin structures in high temperature compact heat exchangers

Shantung TU, Guoyan ZHOU

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 4,   Pages 355-362 doi: 10.1007/s11465-009-0065-2

Abstract: However, the creep design of the high temperature compact heat exchangers has been a primary concernTo establish the high temperature design criterion for compact heat exchangers, creep behavior of the

Keywords： compact heat exchanger     creep     damage     brazing joint    

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Sensitivity analysis and numerical experiments on transient test of compact heat exchanger surfaces

REN Hesheng, LAI Lingjun, CUI Yongzheng

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 374-380 doi: 10.1007/s11708-008-0079-1

Abstract: longitudinal heat conduction is suggested for determining the average convection heat transfer coefficient of compactsatisfactory accuracy of the estimated parameter , which characterizes the heat transfer performance of compact

Keywords： coefficient     dimensionless longitudinal     longitudinal     temperature     conduction    

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Discussion on back-to-back two-stage centrifugal compressor compact design techniques

Lei HUO, Huoxing LIU

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 4,   Pages 390-400 doi: 10.1007/s11465-013-0278-2

Abstract: flow back-to-back two-stage centrifugal compressor in the aviation turbocharger, the compressor is compact

Keywords： back-to-back     two-stage     centrifugal compressor     design     Internal flow    

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Flow and heat transfer in compact offset strip fin surfaces

DONG Junqi, CHEN Jiangping, CHEN Zhijiu

Frontiers in Energy 2008, Volume 2, Issue 3,   Pages 291-297 doi: 10.1007/s11708-008-0061-y

Abstract: Experimental studies of air-side heat transfer and pressure drop characteristics of offset strip fins and flat tube heat exchangers were performed. A series of tests were conducted for 9 heat exchangers with different fin space, fi

Keywords： different     air-side     transfer     pressure     offset    

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Emerging electrochemical processes for materials recovery from wastewater: Mechanisms and prospects

Lingchen Kong, Xitong Liu

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 5, doi: 10.1007/s11783-020-1269-2

Abstract: Abstract • Mechanisms for selective recovery of materials in electrochemical processes are discussedapplications: electrosorption based on carbonaceous and intercalation electrodes, electrochemical redox processesWe highlight the mechanisms for achieving selective materials recovery in these processes.

Keywords： Materials recovery     Electrosorption     Capacitive deionization     Redox processes     Electrochemical precipitation    

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A road-map for energy-neutral wastewater treatment plants of the future based on compact technologies

Hallvard Ødegaard

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 4, doi: 10.1007/s11783-016-0835-0

Abstract: wastewater treatment of the future are discussed by the use of a) one flow diagram based on established, compactreactor (MBBR) processes for biodegradation and high-rate particle separation processes, and de-ammonificationThe paper outlines compact water reclamation processes based on ozonation in combination with coagulationreactor (MBBR) processes for biodegradation and high-rate particle separation processes, and de-ammonificationThe paper outlines compact water reclamation processes based on ozonation in combination with coagulation

Keywords： China concept WWTP     Energy-neutrality     De-ammonification     moving bed biofilm reactor (MBBR)    

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A new approach for scheduling of multipurpose batch processes with unlimited intermediate storage policy

Nikolaos Rakovitis, Nan Zhang, Jie Li, Liping Zhang

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 4,   Pages 784-802 doi: 10.1007/s11705-019-1858-4

Abstract: Optimal scheduling of their processes can lead facilities towards this direction.

Keywords： scheduling     multipurpose batch processes     simultaneous transfer     mixed-integer linear programming    

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Virtual Prototyping of Compact Cyclotron

Fan Mingwu,Yu Tianqin,Xiong Yongqian,Chen Dezhi,Xiong Jian,Qin Bin,Hong Yueming,Dong Changdong

Strategic Study of CAE 2003, Volume 5, Issue 10,   Pages 8-13

Abstract:

Based on the cyclotron theory and virtual prototyping technique, a compact cyclotron virtual prototypingThe overall lifecycle models of the compact cyclotron via CAD system are described in this paper, includingVisualization aspects of 3-dimension models with physical information provide a new orientation on R & D of compact

Keywords： compact cyclotron     virtual prototyping     augmented reality    

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Modeling of hydrological processes in arid agricultural regions

Jiang LI,Xiaomin MAO,Shaozhong KANG,David A. BARRY

Frontiers of Agricultural Science and Engineering 2015, Volume 2, Issue 4,   Pages 283-294 doi: 10.15302/J-FASE-2015076

Abstract: Understanding of hydrological processes, including consideration of interactions between vegetation growth

Keywords： hydrological processes     irrigation area     SPAC     crop growth     groundwater     canal seepage    

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Automated synthesis of steady-state continuous processes using reinforcement learning

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 2,   Pages 288-302 doi: 10.1007/s11705-021-2055-9

Abstract: Automated flowsheet synthesis is an important field in computer-aided process engineering. The present work demonstrates how reinforcement learning can be used for automated flowsheet synthesis without any heuristics or prior knowledge of conceptual design. The environment consists of a steady-state flowsheet simulator that contains all physical knowledge. An agent is trained to take discrete actions and sequentially build up flowsheets that solve a given process problem. A novel method named SynGameZero is developed to ensure good exploration schemes in the complex problem. Therein, flowsheet synthesis is modelled as a game of two competing players. The agent plays this game against itself during training and consists of an artificial neural network and a tree search for forward planning. The method is applied successfully to a reaction-distillation process in a quaternary system.

Keywords： automated process synthesis     flowsheet synthesis     artificial intelligence     machine learning     reinforcement learning    

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Effectiveness of tertiary treatment processes in removing different classes of emerging contaminants

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 11, doi: 10.1007/s11783-022-1583-y

Abstract:

● Different advanced treatment processes were tested for ECs removal

Keywords： Micropollutants     Wastewater     PAC     Membranes     UV     Tertiary treatment    

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Fundamental influences of particles on stirred and unstirred venting processes of foaming systems

Henrik LEIMEISTER,Jörg STEINBACH

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 2,   Pages 141-148 doi: 10.1007/s11705-014-1423-0

Abstract: Venting is the common safety measure to protect plant equipment against excessive overpressure. So far, scenarios in which particles were part of the system and should have been accounted for did ignore their presence; the scenarios were treated like a two-phase system. Current research shows that particles can have a major influence on the venting behaviour. Experimental results indicate that particles affect level swell and relief flow especially of foamy systems. Based on those results four different layers of influence of the particle have been identified and are presented in a first model. Based on this model recommendations for the development of new and more complex models are given.

Keywords： venting     multi-phase    

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Physical and chemical processes of wintertime secondary nitrate aerosol formation

Qi YING

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 3,   Pages 348-361 doi: 10.1007/s11783-011-0343-1

Abstract: The UCD/CIT model was modified to include a process analysis (PA) scheme for gas and particulate matter (PM) to study the formation of secondary nitrate aerosol during a stagnant wintertime air pollution episode during the California Regional PM /PM Air Quality Study (CRPAQS) where detailed measurements of PM components are available at a few sites. Secondary nitrate is formed in the urban areas from near the ground to a few hundred meters above the surface during the day with a maximum modeled net increase rate of 4 μg·m ·d during the study episode. The secondary nitrate formation rate in rural areas is lower due to lower NO . In the afternoon hours, near-surface temperature can be high enough to evaporate the particulate nitrate. In the nighttime hours, both the gas phase N O reactions with water vapor and the N O heterogeneous reactions with particle-bound water are important for secondary nitrate formation. The N O reactions are most import near the surface to a few hundred meters above surface with a maximum modeled net secondary nitrate increase rate of 1 μg·m ·d and are more significant in the rural areas where the O concentrations are high at night. In general, vertical transport during the day moves the nitrate formed near the surface to higher elevations. During the stagnant days, process analysis indicates that the nitrate concentration in the upper air builds up and leads to a net downward flux of nitrate through vertical diffusion and a rapid increase of surface nitrate concentration.

Keywords： secondary nitrate aerosol     N2O5 heterogeneous reaction     process analysis    

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Increasing significance of advanced physical/chemical processes in the development and application of

RULKENS Wim

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 4,   Pages 385-396 doi: 10.1007/s11783-008-0073-1

Abstract: only to a limited part, able to satisfy these needs, the role and significance of physical/chemical processesThe specific future role and aim of the various physical/chemical treatment processes can be categorizedin five groups: improvement of the performance of microbiological treatment processes, achievement ofDevelopment of more environmentally sustainable wastewater treatment chains in which physical/chemical processes

Keywords： control     beneficial     valuable     scarcity     Development    

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Title Author Date Type Operation

Measurement and correlation of supercritical CO

Hiroshi MACHIDA, Ryosuke TAGUCHI, Yoshiyuki SATO, Louw J. FLOURUSSE, Cor J. PETERS, Richard L. SMITH

Journal Article

Creep of brazed plate-fin structures in high temperature compact heat exchangers

Shantung TU, Guoyan ZHOU

Journal Article

Sensitivity analysis and numerical experiments on transient test of compact heat exchanger surfaces

REN Hesheng, LAI Lingjun, CUI Yongzheng

Journal Article

Discussion on back-to-back two-stage centrifugal compressor compact design techniques

Lei HUO, Huoxing LIU

Journal Article

Flow and heat transfer in compact offset strip fin surfaces

DONG Junqi, CHEN Jiangping, CHEN Zhijiu

Journal Article

Emerging electrochemical processes for materials recovery from wastewater: Mechanisms and prospects

Lingchen Kong, Xitong Liu

Journal Article

A road-map for energy-neutral wastewater treatment plants of the future based on compact technologies

Hallvard Ødegaard

Journal Article

A new approach for scheduling of multipurpose batch processes with unlimited intermediate storage policy

Nikolaos Rakovitis, Nan Zhang, Jie Li, Liping Zhang

Journal Article

Virtual Prototyping of Compact Cyclotron

Fan Mingwu,Yu Tianqin,Xiong Yongqian,Chen Dezhi,Xiong Jian,Qin Bin,Hong Yueming,Dong Changdong

Journal Article

Modeling of hydrological processes in arid agricultural regions

Jiang LI,Xiaomin MAO,Shaozhong KANG,David A. BARRY

Journal Article

Automated synthesis of steady-state continuous processes using reinforcement learning

Journal Article

Effectiveness of tertiary treatment processes in removing different classes of emerging contaminants

Journal Article

Fundamental influences of particles on stirred and unstirred venting processes of foaming systems

Henrik LEIMEISTER,Jörg STEINBACH

Journal Article

Physical and chemical processes of wintertime secondary nitrate aerosol formation

Qi YING

Journal Article

Increasing significance of advanced physical/chemical processes in the development and application of

RULKENS Wim

Journal Article