The use of process simulation in supercritical fluids applications

2020 ◽  
Vol 5 (3) ◽  
pp. 424-451 ◽  
Author(s):  
Francisco Javier Gutiérrez Ortiz ◽  
Andrea Kruse
Keyword(s):  
Supercritical Fluids ◽  
Process Simulation ◽  
Modelling And Simulation ◽  
Macro Scale ◽  
Supercritical Technologies

Modelling and simulation from micro- to macro-scale are needed to attain a broader commercialization of supercritical technologies.

scholarly journals RESEARCH ON RULES-BASED BUSINESS PROCESS MODELLING AND SIMULATION / TAISYKLĖMIS GRINDŽIAMŲ VERSLO PROCESŲ MODELIAVIMO IR SIMULIAVIMO TYRIMAS

2014 ◽  
Vol 6 (2) ◽  
pp. 147-150
Author(s):  
Kęstutis Stankevičius ◽  
Olegas Vasilecas
Keyword(s):  
Business Process ◽  
Process Simulation ◽  
Process Modelling ◽  
Modelling And Simulation ◽  
Business Rules ◽  
Business Process Modelling ◽  
Simulation Process ◽  
Simulation And Modelling ◽  
The Difference ◽  
Manipulation Process

Googling the term “Business Process Simulation” in April 2013 yielded only 42.1 thousand hits. It is not much compared with googling the term such as “Business Process Modelling” in the same time, which yielded approx. 1.470 million hits. That is 35 times more compared to the previous search. The difference between modelling and simulation is arguable. In fact, the terms ‘simulation’ and ‘modelling’ are often used synonymously, but the authors prefer to distinguish between the terms and look at modelling as an act of building a model while simulation is considered an act or even a process of using that model for a specific purpose or study. If simulation is a manipulation process of one or more variables, which can be changed and observed, then this kind of process is best managed and controlled by business rules that can also be manipulated in the simulation process. „Google“ paieškoje įvestas terminas „Business Process Simulation“ 2013 metų balandžio mėn. duoda tik 42,1 tūkst. paieškos rezultatų. Tai nėra daug, palyginti su kitu paieškos terminu „Business Process Modelling“. Tuo pačiu metu reikšminiai paieškos žodžiai duoda apie 1,470 milijono paieškos rezultatų. Tai 35 kartus daugiau, palyginti su prieš tai daryta paieška. Galima ginčytis, ar yra skirtumas tarp modeliavimo ir simuliavimo? Iš tiesų žodžiai „modeliavimas“ ir „simuliavimas“ dažnai vartojami kaip sinonimai, tačiau straipsnyje siūloma į modeliavimą ir simuliavimą žiūrėti skirtingai, t. y. į modeliavimą kaip į veiksmą, kuris sukuria modelį, į simuliavimą – kaip į veiksmą arba procesą, kuris sudaro sąlygas taikyti šį modelį konkrečiam tikslui arba tyrimui atlikti. Jeigu apibrėžiama, kad simuliavimas yra vieno ar daugiau kintamųjų manipuliacijos procesas, kurį galima pakeisti ir stebėti, tada taip pat galima susitarti, kad šis procesas geriausiai grindžiamas verslo taisyklėmis, kurios gali būti papildomos arba keičiamos simuliavimo proceso metu.

Modelling and simulation of Internal Traverse Grinding: bridging meso- and macro-scale simulations

2015 ◽  
Vol 9 (4) ◽  
pp. 451-463 ◽  
Author(s):  
Raphael Holtermann ◽  
Andreas Menzel ◽  
Sebastian Schumann ◽  
Dirk Biermann ◽  
Tobias Siebrecht ◽  
...  
Keyword(s):  
Modelling And Simulation ◽  
Macro Scale ◽  
Internal Traverse Grinding ◽  
Traverse Grinding

A Multi-Scale Non-Deterministic Approach to Composite Curing Process Simulation

2013 ◽  
Vol 750-752 ◽  
pp. 11-15 ◽  
Author(s):  
Pierpaolo Carlone ◽  
Gaetano S. Palazzo
Keyword(s):  
Mechanical Properties ◽  
Process Simulation ◽  
Computational Models ◽  
Curing Process ◽  
Trial And Error ◽  
Deterministic Approach ◽  
Cure Process ◽  
Stochastic Perturbations ◽  
Multi Scale ◽  
Macro Scale

Thermosetting matrix composite materials are often subject to a curing process to enhance the mechanical properties of the final product. In recent years computational models of the curing process allowed for a remarkable time and cost compression with respect to trial and error procedures. Most of the proposed models, however, rely on deterministic hypothesis. In this paper a multi-scale non deterministic approach to cure process simulation has been proposed, evidencing the effect of stochastic perturbations of fibers distribution on simulative results on macro-scale.

Application of Supercritical Technologies in Clean Energy Production

2021 ◽  
pp. 792-821
Author(s):  
Valdimir Anikeev ◽  
Khaled A. M. Gasem ◽  
Maohong Fan
Keyword(s):  
Supercritical Fluids ◽  
Vegetable Oils ◽  
Thermal Cycle ◽  
Environmentally Friendly ◽  
Clean Energy ◽  
Motor Fuels ◽  
The World ◽  
Biodiesel Fuels ◽  
Energy Processes ◽  
Supercritical Technologies

In this chapter the authors seek to acquaint the reader with unusual properties of supercritical fluids, and how these properties are used for various applications in the synthesis of biofuels and the intensification of energy processes and thermal cycles. The review includes the studies of leading scientists from around the world related to effective and environmentally friendly methods and technologies of energy acquisition and conversion involving the synthesis of motor fuels, materials and chemicals, solar energy conversion, and thermal cycle efficiencies using supercritical fluids. A special place in the chapter is occupied by studies of the transformation of vegetable oils, algae, and wood in supercritical alcohols, esters, and water to produce biodiesel fuels and hydrogen.

scholarly journals Simulation and control systems in MIDES

2021 ◽  
pp. 137-174
Author(s):  
Erhard Perz ◽  
Fatima Dargam ◽  
Stefan Bergmann ◽  
Ekaterina Rodionova ◽  
Pedro Sousa ◽  
...  
Keyword(s):  
Process Simulation ◽  
Simulation Optimization ◽  
Process Modelling ◽  
Modelling And Simulation ◽  
Automated Control ◽  
Plant Monitoring ◽  
Simulation And Control ◽  
Desalination Plants ◽  
And Control ◽  
Modelling Process

Abstract This chapter presents the work concerning the modelling and simulation of the overall MDC process, as well as its performance analysis and optimization. It also focuses on the support that the work brings for operational decisions on desalination plants, specifically applied to a microbial-powered approach for water treatment and desalination, starting from the stages of process modelling, process simulation, optimization and lab-validation, through the stages of plant monitoring and automated control. The work is based on the application of the environment IPSEpro from SimTech for the stage of process modelling and simulation; and on the system Databridge from Oncontrol for automated control, which employs techniques of machine learning.

Application of Supercritical Technologies in Clean Energy Production

2017 ◽  
pp. 588-616
Author(s):  
Vladimir Anikeev ◽  
Khaled A. M. Gasem ◽  
Maohong Fan
Keyword(s):  
Supercritical Fluids ◽  
Vegetable Oils ◽  
Thermal Cycle ◽  
Environmentally Friendly ◽  
Clean Energy ◽  
Motor Fuels ◽  
The World ◽  
Biodiesel Fuels ◽  
Energy Processes ◽  
Supercritical Technologies

In this chapter the authors seek to acquaint the reader with unusual properties of supercritical fluids, and how these properties are used for various applications in the synthesis of biofuels and the intensification of energy processes and thermal cycles. The review includes the studies of leading scientists from around the world related to effective and environmentally friendly methods and technologies of energy acquisition and conversion involving the synthesis of motor fuels, materials and chemicals, solar energy conversion and thermal cycle efficiencies using supercritical fluids. A special place in the chapter is occupied by studies of the transformation of vegetable oils, algae and wood in supercritical alcohols, esters and water to produce biodiesel fuels and hydrogen.

Tailoring microstructures of materials through biomimetics

1993 ◽  
Vol 51 ◽  
pp. 500-501
Author(s):  
Mehmet Sarikaya ◽  
Ilhan A. Aksay
Keyword(s):  
Chemical Properties ◽  
Design And Synthesis ◽  
Structure Sensitive ◽  
Macro Scale ◽  
Methods Of Synthesis ◽  
Successive Level ◽  
Engineering Materials ◽  
Physical And Chemical ◽  
And Chemical Properties ◽  
Synthesis Of Materials

Biomimetics involves investigation of structure, function, and methods of synthesis of biological composite materials. The goal is to apply this information to the design and synthesis of materials for engineering applications.Properties of engineering materials are structure sensitive through the whole spectrum of dimensions from nanometer to macro scale. The goal in designing and processing of technological materials, therefore, is to control microstructural evolution at each of these dimensions so as to achieve predictable physical and chemical properties. Control at each successive level of dimension, however, is a major challenge as is the retention of integrity between successive levels. Engineering materials are rarely fabricated to achieve more than a few of the desired properties and the synthesis techniques usually involve high temperature or low pressure conditions that are energy inefficient and environmentally damaging.In contrast to human-made materials, organisms synthesize composites whose intricate structures are more controlled at each scale and hierarchical order.

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