scholarly journals A Simulator for Educating the Digital Technologies Skills in Industry. Part One. Dynamic Simulation of Technological Processes

2021 ◽  
Vol 11 (22) ◽  
pp. 10885
Author(s):  
Natalia Koteleva ◽  
Valentin Kuznetsov ◽  
Natalia Vasilyeva
Keyword(s):  
Dynamic Simulation ◽  
Process Model ◽  
Dynamic Properties ◽  
Communication Channels ◽  
Digital Technologies ◽  
Fast Response ◽  
Simulation Software ◽  
Training Simulator ◽  
Simulation Speed ◽  
Digital Training

Digital technology is being introduced into all areas of human activity. However, there are a number of challenges in implementing these technologies. These include the delayed return on investment, the lack of visibility for decision-makers and, most importantly, the lack of human capacity to develop and implement digital technologies. Therefore, creating a digital training simulator for the industry is an actual task. This paper focuses on the first step in creating a digital training simulator for the industry: developing a dynamic process model. The process chosen is flotation, as it is one of the most common mineral processing methods. The simulation was performed in AVEVA Dynamic Simulation software. The model is based on a determination of reaction rate constants, for which, experiments were conducted on a laboratory pneumomechanical flotation machine with a bottom drive. The resulting model was scaled up to industrial size and its dynamic properties were investigated. In addition, the basic scheme of a computer simulator was considered, and the testing of the communication channels of a dynamic model with systems, equipment and software for digitalizing was conducted. The developed model showed acceptable results for its intended purpose, namely, an exact match to the technological process in terms of time. This helps to account for inertia and a fast response on all tested communication channels, as well as being acceptable for the real-time simulation speed of the solver.

Modeling of a Steam Turbine Including Partial Arc Admission for Use in a Process Simulation Software Environment

2011 ◽  
Author(s):  
Eric Liese
Keyword(s):  
Steam Turbine ◽  
Process Simulation ◽  
Process Model ◽  
Constant Pressure ◽  
Pressure Ratio ◽  
Simulation Software ◽  
State Variables ◽  
Steam Turbines ◽  
Software Environment ◽  
Last Stage

A dynamic process model of a steam turbine, including partial arc admission operation, is presented. Models were made for the first stage and last stage, with the middle stages presently assumed to have a constant pressure ratio and efficiency. A condenser model is also presented. The paper discusses the function and importance of the steam turbines entrance design and the first stage. The results for steam turbines with a partial arc entrance are shown, and compare well with experimental data available in the literature, in particular, the “valve loop” behavior as the steam flow rate is reduced. This is important to model correctly since it significantly influences the downstream state variables of the steam, and thus the characteristic of the entire steam turbine, e.g., state conditions at extractions, overall turbine flow, and condenser behavior. The importance of the last stage (the stage just upstream of the condenser) in determining the overall flowrate and exhaust conditions to the condenser is described and shown via results.

Dynamic Simulation Software for Prediction of Hydrogen Temperature and Pressure during Fueling Process

2018 ◽  
Author(s):  
Taichi Kuroki ◽  
Kiyoshi Handa ◽  
Masanori Monde ◽  
Shigehiro Yamaguchi ◽  
Kane'i SHINZATO ◽  
...  
Keyword(s):  
Dynamic Simulation ◽  
Simulation Software ◽  
Temperature And Pressure

scholarly journals Dynamic Simulation of Petrochemical Wastewater Treatment Using Wastewater Plant Simulation Software

2018 ◽  
Vol 203 ◽  
pp. 03005
Author(s):  
Idzham Fauzi Mohd Ariff ◽  
Mardhiyah Bakir
Keyword(s):  
Simulation Model ◽  
Dynamic Simulation ◽  
Stable Condition ◽  
Oxygen Demand ◽  
Simulation Software ◽  
Petrochemical Plant ◽  
Dynamic Simulation Model ◽  
Plant Monitoring ◽  
Plant Simulation

A dynamic simulation model was developed, calibrated and validated for a petrochemical plant in Terengganu, Malaysia. Calibration and validation of the model was conducted based on plant monitoring data spanning 3 years resulting in a model accuracy (RMSD) for effluent chemical oxygen demand (COD), ammoniacal nitrogen (NH3-N) and total suspended solids (TSS) of ±11.7 mg/L, ±0.52 mg/L and ± 3.27 mg/L respectively. The simulation model has since been used for troubleshooting during plant upsets, planning of plant turnarounds and developing upgrade options. A case study is presented where the simulation model was used to assist in troubleshooting and rectification of a plant upset where ingress of a surfactant compound resulted in high effluent TSS and COD. The model was successfully used in the incident troubleshooting activities and provided critical insights that assisted the plant operators to quickly respond and bring back the system to normal, stable condition.

scholarly journals Novel analysis methods of dynamic properties for vehicle pantographs

2018 ◽  
Vol 180 ◽  
pp. 01005 ◽  
Author(s):  
Andrzej Wilk
Keyword(s):  
Dynamic Analysis ◽  
Dynamic Simulation ◽  
High Speed ◽  
Dynamic Properties ◽  
Equations Of Motion ◽  
Computer Software ◽  
Fem Analysis ◽  
Electrical Energy ◽  
Modern Approach ◽  
Static And Dynamic Analysis

Transmission of electrical energy from a catenary system to traction units must be safe and reliable especially for high speed trains. Modern pantographs have to meet these requirements. Pantographs are subjected to several forces acting on their structural elements. These forces come from pantograph drive, inertia forces, aerodynamic effects, vibration of traction units etc. Modern approach to static and dynamic analysis should take into account: mass distribution of particular parts, physical properties of used materials, kinematic joints character at mechanical nodes, nonlinear parameters of kinematic joints, defining different parametric waveforms of forces and torques, and numerical dynamic simulation coupled with FEM calculations. In this work methods for the formulation of the governing equations of motion are presented. Some of these methods are more suitable for automated computer implementation. The novel computer methods recommended for static and dynamic analysis of pantographs are presented. Possibilities of dynamic analysis using CAD and CAE computer software are described. Original results are also presented. Conclusions related to dynamic properties of pantographs are included. Chapter 2 presents the methods used for formulation of the equation of pantograph motion. Chapter 3 is devoted to modelling of forces in multibody systems. In chapter 4 the selected computer tools for dynamic analysis are described. Chapter 5 shows the possibility of FEM analysis coupled with dynamic simulation. In chapter 6 the summary of this work is presented.

A Digital Training Simulator for a 660 MW Coal-Fired Power Plant at Eraring Power Station

1981 ◽  
Vol 14 (2) ◽  
pp. 2999-3004
Author(s):  
J.E. Seager ◽  
P.A. O'Kelly ◽  
Y. Matsumoto ◽  
H. Takaoka ◽  
N. Kato ◽  
...  
Keyword(s):  
Power Plant ◽  
Training Simulator ◽  
Power Station ◽  
Digital Training

scholarly journals Digital Economy: Investing in Digital Learning Technologies

2019 ◽  
Vol 9 (1) ◽  
pp. 6570-6576
Keyword(s):  
Economic Growth ◽  
Vocational Training ◽  
Information Technologies ◽  
Digital Technologies ◽  
Digital Economy ◽  
Learning Technologies ◽  
Digital Learning ◽  
Key Factors ◽  
Foreign Experience ◽  
Digital Training

The current economic terms and conditions stimulate investments in digital transformations. Digital technologies act as drivers, including for education and vocational training. The companies that invest in information technologies for education and HR training realize that investments in HR and the development of skills in education and vocational training are recognized as key factors of the economic growth. This article aims at analyzing the peculiarities of investing in digital learning technologies in the context of the digital economy. In the article the relevance of investing in HR has been substantiated, and the foreign experience of stimulating investments in digital learning technologies has been analyzed. Based on the expert survey, the possibilities of HR digital training have been analyzed, and the peculiarities of various forms of digital training have been defined.

Research on Dynamic Alignment for Sophisticated System Based on ACP Technology

2012 ◽  
Vol 630 ◽  
pp. 473-478 ◽  
Author(s):  
Fei Wan ◽  
Guo Xi Li ◽  
Jing Zhong Gong ◽  
Bao Zhong Wu
Keyword(s):  
Experimental Data ◽  
Dynamic Simulation ◽  
Process Parameters ◽  
Simulation Software ◽  
Contact Theory ◽  
Dynamic Parameters ◽  
Agent Model ◽  
The Status ◽  
Alignment Process ◽  
Dynamic Alignment

To change the status of time-consuming and over-reliance on technicians in mechanical system alignment process, the ACP technology is presented. The mapping between alignment process parameters and dynamic parameters was established through contact theory to build the agent model for parts. While the second mapping between dynamic parameters and machine dynamic characteristics is calculated by dynamic simulation software to conduct computational experiments. Experimental data is analyzed in order to implement data mine, optimize the alignment process, guide technician alignment, modify the theory mapping and improve the alignment efficiency.

ICT

2014 ◽  
pp. 45-61 ◽  
Author(s):  
Sylvia Archmann ◽  
Astrid Guiffart
Keyword(s):  
Information And Communication Technologies ◽  
Public Services ◽  
Communication Channels ◽  
Digital Technologies ◽  
Communication Technologies ◽  
Policy Outcomes ◽  
Access To Education ◽  
Information And Communication ◽  
Successful Approach ◽  
Effective Assessment

This analyzes how Information and Communication Technologies (ICT) can be used by governments to involve all citizens in society life through increased access to education, employment, public services, as well as participating in decision-making. Given the risks of deeper social exclusion associated with the lack of digital competences or capabilities, targeted measures to encourage ICT engagement may strategically be implemented to provide equal opportunities. Furthermore, digital technologies open up new communication channels that governments can use to deliver valuable citizen-oriented public services and foster social and political involvement. In order to reach inclusiveness and participation objectives, technology is obviously not enough. Some commitment to openness and transparency, as well as an effective assessment of policy outcomes range among the pillars of a successful approach to digital governance.

Digital Technologies as Media to Transfer Knowledge in IT Firms

2016 ◽  
pp. 204-217 ◽  
Author(s):  
Laura Zapata-Cantú ◽  
Teresa Treviño ◽  
Flor Morton ◽  
Ernesto López Monterrubio
Keyword(s):  
Knowledge Transfer ◽  
Organizational Communication ◽  
Information And Communication Technologies ◽  
Communication Channels ◽  
Digital Technologies ◽  
Communication Technologies ◽  
Study Approach ◽  
Transfer Processes ◽  
Information And Communication

During the last decade, improvements in information and communication technologies have made possible the transformation of knowledge transfer processes from purely informal to increasingly formal and more diverse communication mechanisms that enrich intra-organizational communication channels. In this chapter, the authors followed a case study approach to analyze three Mexican companies with the objective of understanding how companies in the IT sector are implementing digital technologies to achieve knowledge transfer in their organizations. The findings suggest that workers seek and choose tools that can be personalized and customized to adapt to their own needs. New digital technologies are proving to be a new and relevant channel of communication among people: therefore, these should be considered to be one possible way to motivate knowledge transfer at work.

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