VDI Verlag eLibrary

Pinch-based Methods for Absorption and Extraction Process and Solvent Screening

Christian Redepenning

Reihe: Verfahrenstechnik

Band 955 2018

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Recommendations for further research S. 143-156

„… possible. 6.2 Robust optimization-based design of rigorous models Rigorous models for separation columns …” „… optimization-based solution of rigorous models. Often, optimization is initialized by the solution of a rigorous …” „… , www.gams.com 146 6.2. Robust optimization-based design of rigorous models niques, where an upper bound needs to …”

Introduction S. 1-20

„… exported to the optimization with rigorous models which finally determines the cost-optimal process …” „… heuristic rules for the identification of preliminary ideas up to complex optimization-based calculations …” „… . Examples are the simultaneous optimization-based design of reaction and separation processes (Recker …”

Titelei/Inhaltsverzeichnis S. I-XII

„… techniques . . . . . . . . 144 6.2. Robust optimization-based design of rigorous models …” „… of multiple separation units, heat-integration as well as optimization of the operating point …” „… . Identification of alternatives . . . . . . . . . . . . . . . . . . . . 7 1.1.2. Rigorous models …”

Pinch-based shortcut method for the design of adiabatic absorption columns S. 21-58

„… design between first ideas and detailed optimization. Initialization of rigorous models, pre-selection of …” „… absorption process. Superstructure optimization, where a mixed-integer non-linear programming (MINLP) problem …” „… challenging to solve efficiently and reliably with today’s optimization algorithms (Amaran et al., 2014 …”

Pinch-based solvent screening for absorption and extraction processes S. 90-136

„… superstructure optimization with rigorous models (Douglas, 1988; Kossack et al., 2008; Marquardt et al., 2008 …” „… by using rigorous models where the separation units are described by a set of mass, equilibrium, and …” „… . Optimization techniques need to be employed, not only to determine the optimal operating point, but also to …”

Software S. 137-142

„… rigorous thermodynamic models. In consequence, the property calculation module located on the …” „… , which is perfectly suited to parallellize the screening of process alternatives, or the optimization …” „… toolbox TOMLAB1, which provides several state-of-the art optimization algorithms, e.g., SNOPT, for …”

Bibliography S. 173-198

„… . Düsseldorf: VDI. Kossack, S., Kraemer, K., & Marquardt, W. (2006). Efficient optimization-based design of …” „… Krämer, K. (2012). Optimization-based synthesis of hybrid separation processes. Volume 934 of …” „… ). Efficient optimization-based design of distillation processes for homogeneous azeotropic mixtures …”

Appendix S. 158-172

„… transition from the shortcut approximation to the rigorous solution. The shortcut model facilitates the …” „… hybrid absorption-rectification and extraction-rectification processes including optimization of the …” „… energy-efficient processes, initialization of rigorous models, as well as screening of operating points, solvents …”

doi.org/10.51202/9783186955036

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Systematic and Optimization-Based Synthesis and Design of Chemical Processes

Sebastian Recker

Reihe: Verfahrenstechnik

Band 951 2017

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A unifying framework for conceptual process design S. 11-54

„… rigorous optimization models. To account for the non-ideal behavior of the mixtures involved and the …” „… specifications cost-optimal process generation of variants rapid screening with shortcuts rigorous optimization …” „… rigorous optimization of the promising variants. The necessary tools, which are employed in the various …”

Titelei/Inhaltsverzeichnis S. I-XIV

„… – Process Optimization – Shortcut Model for Kinetically-Controlled Reactor Networks – Rigorous Optimization …” „… Optimization with rigorous models . . . . . . . . . . . . . . . . . . 43 2.5 Illustrative example: Allyl …” „… the process variant . . . . . . . . . . . . . . . . . . . . . 49 2.5.4 Optimization with rigorous …”

Conclusions and final thoughts S. 95-98

„… An effective way to increase robustness of the rigorous optimization is to decrease the number of …” „… methods for the optimization-based process design by means of superstructure optimization. Marquardt et al …” „… . (2008) proposed a framework for an optimization-based design of hybrid separation processes, which …”

Introduction S. 1-10

„… to determine performance bounds, which can be used to robustify subsequent rigorous optimization. For …” „… computed by optimization of rigorous unit models, for example, by coupling derivative-free optimization …” „… models (ROMs)) can be trained by rigorous simulation for later use in simulation-based optimization …”

Systematic variant generation for catalytic processes S. 55-62

„… with the shortcut evaluation and rigorous optimization methodology presented in Chapter 2, this …” „… . Additionally, the kinetic models can be utilized for subsequent shortcut evaluation and rigorous optimization …” „… evaluation and rigorous optimization procedure presented in Sections 2.2 and 2.3. 62 …”

Systematic design of a butadiene telomerization process S. 63-94

„… (Section 4.2) and rigorous optimization (Section 4.3) using the procedures presented in Chapter 2. In …” „… 14 32 .3 92 0 0 0 1 0 0 0 0 0 0 90 4.3 Optimization with rigorous models 4.3 Optimization with …” „… . The results for the rigorous optimization of the column sequence superstructure displayed in Figure …”

doi.org/10.51202/9783186951038

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Drivetrain for Vehicles 2017

VDI Wissensforum GmbH (Hrsg.)

Reihe: VDI-Berichte

Band 2313 2017

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R. Jäger, P. Ramminger, R. Matthé, M. Herrmann The electric propulsion system in the new OpelAmpera-e S. 51-52

„… subsystems design and performance, including remarkable optimization details, resulting from rigorous …” „… numerous optimization loops delivered improvements in propulsion system energy, power, torque and …”

doi.org/10.51202/9783181023136

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ELIV 2017

VDI Wissensforum GmbH (Hrsg.)

Reihe: VDI-Berichte

Band 2299 2017

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R. Straschill, T. Schäfer Anwendung etablierter Methoden zur Quantifizierung von Testabdeckung zur Sicherstellung der Sicherheit selbstlernender Systeme /Accepting uncertainty – Applying proven methods for quantifying test res... S. 97-98

„… guesswork in estimating test coverage with quantitative results, thus allowing for an optimization problem …” „… ). These concerns have led to a rigorous practice of software reviewing and testing. The procedures are …”

doi.org/10.51202/9783181022993

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Model-Based Design of Pure and Multicomponent Cellulosic Biofuels for Advanced Engine Concepts

Manuel Dahmen

Reihe: Verfahrenstechnik

Band 954 2017

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Blend formulation by simultaneous product and pathway design S. 130-174

„… optimization-based methodology to identify the most promising routes for fuel production based on a network of …” „… complexity to be used in an optimization-based approach. Different variants of the UNIFAC approach have been …” „… integrated into the optimization-based approach. The idea is that the modeler can impose constraints on the …”

Introduction S. 1-9

„… relationship modeling of key physicochemical fuel properties, and (iii) an optimization-driven approach to …” „… (selectivity & conversion) fuel specifications design objective(s) Figure 1.5: Optimization-driven approach …” „… been almost entirely rewritten to provide a more rigorous theoretical description of the approach …”

Bibliography S. 227-276

„… Sahinidis, N. V. (2013). Optimization-based framework for computeraided molecular design. AIChE Journal …” „… optimization-based computer-aided molecular design using COSMO-RS. Chemical Engineering Science, 159:84–92. Scior, T …” „… Problems in Local and Global Optimization. Kluwer Academic Publishers, Boston, Massachusetts, USA. Foong, T …”

doi.org/10.51202/9783186954039

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38. Internationales Wiener Motorensymposium 27.-28. April 2017

Hans Peter Lenz (Hrsg.)

Reihe: Verkehrstechnik/Fahrzeugtechnik

Band 802 2017

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P. Ramminger, R. Matthé, M. Herrmann, R. Jäger Das elektrische Antriebssystem im neuen Opel Ampera-e/The Electric Propulsion System in the New Opel Ampera-e S. II-1-II-13

„… remarkable optimization details, resulting from rigorous analysis. The paper compares the performance …” „… individually and as an integrated system. The new design and numerous optimization loops delivered …” „… Requirements A Design for Six Sigma (DFSS) optimization process [4] was followed which considered several …”

C. A. Sharp, C. Henry, G. Neely, S. Rengarajan, J. Sarlashkar, C. C. Webb, S. Yoon Bewertung und Darstellung von Technologien zur Erreichung niedrigster NOx-Emissionen am Beispiel eines NFZ-Dieselmotors /Evaluation and Demonstration of Ultra Low NOx Technologies for an On-Highway Di... S. II-164-II-184

„… will be updated with data from a set of catalysts which have been aged via a more rigorous Final Aging …” „… matter which design choices are ultimately made, integration and optimization of the engine and …”

doi.org/10.51202/9783186802125

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Plastics in Automotive Engineering 2016

VDI Wissensforum GmbH (Hrsg.)

Reihe: VDI-Berichte

Band 4343 2016

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M. Kurz 3D simulation for lightweight construction in the plastics processing industry S. 17-28

„… optimization approaches on the side of constructive component design. By a rigorous implementation of …” „… distribution and cell size distribution 22 For further optimization of quality in MuCell® applications, a …” „… variothermal processes available in Moldex3D. 3. Optimization of process, tooling and component In addition …”

M. Derks Carbon core: the use of CFRP in the body structure of the BMW 7 Series S. 83-92

„… . Rigorous optimization in the lightweight design as regards wheel suspension, brakes and wheels has enabled …” „… includes a selective use of aluminum in the body and chassis as well as a consistent optimization of …”

H. Gawinski, E. Neitzel, D. Bauch Potential for weight reduction in commercial vehicles – Air springs with pistons made of glass-fiber- reinforced plastic S. 337-344

„… achieving this objective is a rigorous reduction in the weight of the vehicle. On account of their …” „… : Design scheme for integrative computation Optimization is carried out by adjusting the geometry …”

J. J. Laux, L. Vanin, S. Grgac, G. Schalte Injection-Molded Carbon-Fiber Grille Opening Reinforcement – Development and production of the 2016 Ford Mustang Shelby GT350 GOR S. 93-104

„… is the key. While paying rigorous attention to detail, the team pushed the envelope with …” „… latest methods of topology optimization to fit the limited and predetermined packaging space based on …”

doi.org/10.51202/9783182443438

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Theory and Application of the Lang-Gilles Observer for Distillation Processes

Maxim Stuckert

Reihe: Mess-, Steuerungs- und Regelungstechnik

Band 1253 2016

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Bibliography S. 144-157

„… . Kooijman and R. Taylor, 2000. K. Kraemer, S. Kossack, and W. Marquardt. E cient optimization-based design …” „… (2):261 269, 1983. Y. S. Choe and W. L. Luyben. Rigorous dynamic models of distillation columns …” „… real-time optimization of chemical processes. Automatisierungstechnik : at, 62(2, SI):150 161, 2014. 146 …”

Dynamic distillation modeling S. 8-51

„… , we discuss rigorous models which may be based upon one of the aforementioned concepts, EQ or NEQ …” „… . Rigorous distillation column models According to Skogestad the term rigorous model usually refers to a …” „… ) reports that no references were found at the time in which the model equations are solved in the rigorous …”

Application of the Lang-Gilles observer in distillation control S. 97-118

„… to turn a control into a nite-horizon optimization problem. At any time sampling point, this …” „… optimization problem is solved to obtain a sequence of future control actions. The rst element of this …” „… following sampling time instants, the cycle consisting of stating and solving the optimization problem …”

doi.org/10.51202/9783186253088

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LAND.TECHNIK AgEng 2023

VDI Wissensforum GmbH (Hrsg.)

Reihe: VDI-Berichte

Band 2427 2023

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A. Tamrakar, M. Roberge Grain Handling Simulations in Combine Harvester – Simulation Development, Validation and Optimization S. 395-402

„… Optimization Dr. Ashutosh Tamrakar, CNH Industrial America LLC, New Holland (PA), USA; Dr. Martin Roberge …” „… models of grain flow that can be used for design improvements and operation optimization. In this paper …” „… , validation steps, as well as design optimization for a robust grain handling system. For simulation …”

doi.org/10.51202/9783181024270

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Robust Design Optimierung endlosfaserverstärkter Verbundbauteile

Markus Kellermeyer

Reihe: Konstruktionstechnik/Maschinenelemente

Band 443 2018

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Literaturverzeichnis S. 135-146

„… rigorous framework for optimization of expensive functions by surrogates. Structural Optimization. 1999 …” „… Rooij, R.; Schoofs, A.; Rooda, J.: Simulation based optimization of stochastic systems with integer …” „… design variables by sequential multipoint linear approximation. Structural Multidisciplinary Optimization …”

doi.org/10.51202/9783186443014

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Model-based and Experimental Analysis of Transient Electrodialysis Processes

Matthias Johannink

Reihe: Verfahrenstechnik

Band 949 2016

Treffer in den folgenden Teilen:

Introduction S. 4-16

„… systems. A rigorous model allowing the integrated description of all relevant phenomena and transport …” „… targeted. However, in particular when a rigorous mechanistic description of phenomena in the membranes and …” „… model proposed by Kraaijeveld et al. (1995) and Visser (2001). The model is based on the rigorous …”

Concluding remarks S. 134-138

„… parameter of a spacer structure. The novel work ow is based on optimization-based methods for model identi …” „… purpose generic optimization-based methods are applicable as the developed model, after discretization of …” „… transport mechanisms and the model-based optimization of process designs in industrial applications. As a …”

Modeling of ionic transport in electrolytes S. 66-83

„… the optimization-based design or control with established methods, only scenarios are considered where …” „… the models in combination with optimization-based methods, e.g., for parameter estimation or a …” „… 4 Modeling of ionic transport in electrolytes This chapter presents rigorous models for the …”

Bibliography S. 161-177

„… correlations for electrodialysis systems, with application to process optimization. Industrial & Engineering …” „… . Desalination, 291:78 93, 2012. M. Johannink, A. Mhamdi, and W. Marquardt. Rigorous modeling of electrodialysis …” „… . Mhamdi, and W. Marquardt. Towards a rigorous model of electrodialysis processes. Proceedings of ESCAPE 21 …”

A dynamic process model of an electrodialysis plant S. 84-110

„… model allowing the description of ED processes operated in dynamic mode. The rigorous dynamic …” „… yield a rigorous description of the transport processes in the spacer- lled channels; the model …” „… hydrodynamics. A rigorous description of the hydrodynamics, e.g., by the Navier-Stokes equations requires a …”

Spacer geometry and process performance S. 111-133

„… is proposed guiding the execution of speci c CFD simulations by means of optimization-based model …” „… . Section 1.3.1). The integration of the hydrodynamic studies with a rigorous description of the ionic mass …” „… solution of the Lattice Boltzmann equation which is a discrete representation of the rigorous Boltzmann …”

doi.org/10.51202/9783186949035

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Generic Topology Optimization Based on Local State Features

Nikola Aulig

Reihe: Rechnerunterstützte Verfahren

Band 468 2017

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Fundamentals S. 8-28

„… topology optimization problem. Mathematically rigorous terms for the partial derivative of the objective …” „… 8 2 Fundamentals This chapter provides background on the addressed topology optimization problem …” „… and an overview of state-of-the-art optimization methods. Section 2.1 introduces topology optimization …”

Topology Optimization by Predicting Sensitivities S. 48-83

„… 48 4 Topology Optimization by Predicting Sensitivities As discussed in the previous chapter …” „… , evolutionary computation approaches for topology optimization come with the need of an appropriate …” „… facts necessitate a novel topology optimization approach that is proposed in this chapter. It is …”

Topology Optimization of Crashworthiness Objectives S. 121-149

„… 121 6 Topology Optimization of Crashworthiness Objectives Within the automotive industry, the task …” „… design process. Therefore, and due to the difficulties it poses to existing topology optimization …” „… structured as follows: Section 6.1 briefly describes the approaches for crashworthiness topology optimization …”

doi.org/10.51202/9783186468208

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Plastics in Automotive Engineering 2017

VDI Wissensforum GmbH (Hrsg.)

Reihe: VDI-Berichte

Band 4348 2017

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O. Mende The underbody: an underestimated contribution to CO2 reduction S. 57-74

„… . However, the focus of optimization work was limited to the body alone. Possible areas of potential in the …” „… underbody remained as yet unexploited. This was also the case with the Golf 3. The first optimizations …” „… are optimizations regarding not only aerodynamic properties but also weight, resulting from …”

J. Götzelmann Bumper in thin-wall technology: an update regarding materials, processes, and technology innovations S. 75-90

„… with the side left in its original state. The following optimization measures were implemented …” „… . Optimization of the spotting and pressure pattern of the nozzle and ejector sides Reduction of movements in …” „… and achieves a very satisfactory all-round welding even after a very short welding time. Optimization …”

doi.org/10.51202/9783182443483

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Reactor network synthesis with guaranteed robust performance

Xiao Zhao

Reihe: Verfahrenstechnik

Band 952 2017

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Bibliography S. 158-176

„… , 2017. [191] Y. Zhao and M. Stadtherr. Rigorous global optimization for dynamic systems subject to …” „… Bibliography [148] V. Sakizlis, J. Perkins, and E. Pistikopoulos. Recent advances in optimization-based …” „… . State-of-the art and progress in the optimization-based simultaneous design and control for chemical processes …”

Introduction S. 1-16

„… method with numerical optimization. Superstructure approach. The superstructure approach for reactor …” „… network synthesis has been under investigation for more than 30 years. The approach is based on rigorous …” „… optimization. Depending on the type of the resulting optimization problem, the approach can be classified into …”

Solution methods S. 60-106

„… 5 Solution methods In previous chapters we derived two optimization problems, Eqs. (3.44) and (4.39 …” „… this chapter, we will first review each related classes of optimization problems and then propose a …” „… two-step hybrid solution strategy for the optimization problems (3.44) and (4.39). Note that the symbols …”

doi.org/10.51202/9783186952035

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Automation 2019

VDI Wissensforum GmbH (Hrsg.)

Reihe: VDI-Berichte

Band 2351 2019

Treffer in den folgenden Teilen:

A. Elkhashap, D. Abel, R. Meier Modelling and Control of a Continuous Vibrated Fluidized Bed Dryer in Pharmaceutical Production S. 159-174

„… Control Structure Adopting a rigorous (i.e. mechanistic, or physically motivated) modelling approach for …” „… 10 15 20 VDI-Berichte Nr. 2351, 2019 171 8 Conclusion A rigorous model for the drying …” „… .: ACADO toolkit-An open-source framework for automatic control and dynamic optimization. Optimal Control …”

doi.org/10.51202/9783181023518

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