Temat: process simulator - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Design and simulation of high purity biodiesel reactive distillation process
Autorzy:: Ali, Syed Sadiq
Asif, Mohammad
Basu, Avijit
Tematy:: biodiesel
reactive distillation
process simulator
recycle
purge; Pokaż więcej
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Powiązania:: https://bibliotekanauki.pl/articles/779902.pdf Link otwiera się w nowym oknie
Opis:: Biodiesel is a promising energy substitute of fossil fuels since it is produced from renewable and biodegradable sources. In the present work, reactive distillation (RD) process is designed and simulated using Aspen Plus process simulator to produce biodiesel of high purity through esterification reaction. The simultaneous reaction and separation in same unit enhances the biodiesel yield and composition in RD process. Two flowsheets are proposed in present work. In the first flowsheet, the unreacted methanol is recycled back to reactive distillation column. Biodiesel with 99.5 mol% purity is obtained in product stream while the byproduct stream comprises 95.2 mol% water, which has to be treated further. In the second flowsheet, a part of methanol recycle is split and purged. In this case, the biodiesel composition in product stream is 99.7 mol% whereas water composition is 99.9 mol% in byproduct stream, which can be reused for other process without treatment.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Dynamic modeling of the isoamyl acetate reactive distillation process
Autorzy:: Ali, S. S.
Hossain, SK. S.
Asif, M.
Tematy:: reactive distillation
process simulator
isoamyl acetate
dynamic modeling
disturbance; Pokaż więcej
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Powiązania:: https://bibliotekanauki.pl/articles/778351.pdf Link otwiera się w nowym oknie
Opis:: The cost-effectiveness of reactive distillation (RD) processes makes them highly attractive for industrial applications. However, their preliminary design and subsequent scale-up and operation are challenging. Specifically, the response of RD system during fluctuations in process parameters is of paramount importance to ensure the stability of the whole process. As a result of carrying out simulations using Aspen Plus, it is shown that the RD process for isoamyl acetate production was much more economical than conventional reactor distillation configuration under optimized process conditions due to lower utilities consumption, higher conversion and smaller sizes of condenser and reboiler. Rigorous dynamic modeling of RD system was performed to evaluate its sensitivity to disturbances in critical process parameters; the product flow was quite sensitive to disturbances. Even more sensitive was product composition when the disturbance in heat duties of condenser or reboiler led to a temperature decrease. However, positive disturbance in alcohol feed is of particular concern, which clearly made the system unstable.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Modern measures of risk reduction in industrial processes
Autorzy:: Kościelny, Jan Maciej
Syfert, Michał
Fajdek, Bartłomiej
Tematy:: risk reduction
layer of protection
realtime
diagnostic system
fault tolerant
control system
process simulator
redukcja ryzyka
warstwa ochronna
system diagnostyczny
czas rzeczywisty
system kontroli
symulator procesów; Pokaż więcej
Wydawca:: Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Powiązania:: https://bibliotekanauki.pl/articles/384484.pdf Link otwiera się w nowym oknie
Opis:: The article describes standard safety-protection layers according to EN 61511 standard. Their aim is to reduce risk, thus to decrease the frequency of occurrence of threatening incidents and/or consequences of such incidents. The aim of the article was to present currently developed means of increasing process safety, which are not included in the standards. There are described: advisory diagnostic systems, fault tolerant control systems, process simulators for operators training and IT systems supporting safety. Such components can be treated as additional layers of process protection. A simple example comparing the operation of alarm and diagnostic systems as well as the example of the fault tolerant control system of the level in the drum boiler in sugar factory are given.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: New Capabilities of the NTPRO 4000 Full Mission Ship Handling Simulator in the Assessment and Evaluation Processes at Lithuanian Maritime Academy
Autorzy:: Zazeckis, R.
Bartuseviciene, I.
Maksimavicius, R.
Tematy:: Manoeuvring
ship handling simulator
Full Mission Bridge Simulator (FMBS)
MET System in Lithuania
Assessment Process
Evaluation Process
NTPRO 4000
STCW Implementation; Pokaż więcej
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Powiązania:: https://bibliotekanauki.pl/articles/116072.pdf Link otwiera się w nowym oknie
Opis:: Nowadays the equipment used on ships is becoming more and more sophisticated, safety of shipping depends heavily not only on trustworthiness of high-tech products, but also on mariners’ competence. It is necessary to find methods to enable seafarers to keep track with technical developments. Simulators as a tool combined with a properly developed course curriculum and qualified instructors provide an appropriate method not only for training, but also for measuring, assessing and evaluating individual mariner performance in order to test levels of competency and proficiency. According to Nieri (1995, p. 1/6), “The development of performance-based assessment tools would utilize the widely-recognized advantages of simulators and part-task trainers to generate a scenario in which the license candidate must demonstrate his knowledge of system relationships, knowledge of operational procedures, monitor systems and situations, respond to unexpected occurrences, identify and diagnose problems, and manage personnel, in a dynamic world“. This paper discusses the usage of new capabilities of the NTPRO 4000 full mission ship handling simulator in the assessment and evaluation processes at Lithuanian Maritime Academy.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Computer Simulation as an Effective Tool Supporting Decision-Making Processes in Air Defense
Autorzy:: RADOMYSKI, Adam
CUR, Krzysztof
Tematy:: computer simulation,
air defense,
command,
decision process,
simulator; Pokaż więcej
Wydawca:: Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.
Powiązania:: https://bibliotekanauki.pl/articles/466162.pdf Link otwiera się w nowym oknie
Opis:: This article outlines the results of studies concerning supporting the decision-making process in air defense with the use of state-of-the art computer simulator. The simulator is intended to simulate air force operations and air defense in the air, and the simulated facilities are supposed to reflect real and hypothetical facilities. It allows us to conduct experiments with the use of models showing particular fragments of reality, which reduce information entropy characteristic of contemporary decision-making situations in air defense.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Simulator of Police Actions in Crisis Situations as an Application of an Intelligent Decision Support System in the Process of Improving Polish Police Actions
Autorzy:: Kamiński, Jarosław
Jurczak, Justyna
Jakubczyk, Rafał
Tematy:: simulator
simulation training
decision process
security of command; Pokaż więcej
Wydawca:: Wyższa Szkoła Policji w Szczytnie
Powiązania:: https://bibliotekanauki.pl/articles/1375006.pdf Link otwiera się w nowym oknie
Opis:: The introduction of a simulator of Police actions in crisis situations to police training of command skills made it necessary to know the ongoing relationship between training on the simulator and the actual actions of the Police. Visualisation of the effects of decisions taken by commanders in a virtual simulation environment, ending in most cases in the escalation of the threat, trigger off analytic mechanisms and awareness of responsibility for the life and health of people and the officers carrying out commands issued by commanders and other persons taking part in the simulation. Simulation training provides the opportunity to observe the ongoing relationship between cells of the command structure adopted by commanders, depicting among others, the sources of errors and threats of destabilisation of commanding process. There are various scenarios that are possible to play including elements such as: police riot, crowd aggression level, and weather conditions. Based on the feedback from simulation training participants, who are mostly those responsible for commanding processes while performing daily duties, it is reasonable to say that the training conducted on the Police simulator in crisis situations allows the commanding skills and abilities to be significantly shaped. What is more, as the simulator is a universal tool, it enables cooperation training to be conducted with non-police entities, the fire brigade, medical emergency, city guard, and crisis management teams.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Designing nitriding processes using simulator of the kinetics of nitrided layer growth
Autorzy:: Kowalska, J.
Tematy:: controlled gas nitriding
nitrided layer
process parameters
kinetics
simulator; Pokaż więcej
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Powiązania:: https://bibliotekanauki.pl/articles/246409.pdf Link otwiera się w nowym oknie
Opis:: This article presents simulator of the kinetics of nitrided layer growth. Simulator of the kinetics of nitrided layer growth is an application, which supports new method of controlled gas nitriding called ZeroFlow. ZeroFlow method is used for nitriding selected car engine parts, such as crankshafts, camshafts, piston rings, poppet valve springs and discs, piston pins or nozzles for unit injectors. Through the use of simulation models, it is possible to develop the especially dedicated processes with specific parameters for each of this parts, which means that simulator of the kinetics of nitrided layer growth enables forming of nitrided layer with strictly defined properties: required phase structure with thicknesses of particular zones that occurs in it and required hardness distribution. Moreover, using simulation models this layers are obtained in the shortest possible time, which is connected with the lowest energy and gases consumption; therefore, nitriding process using ZeroFlow method (and simulator of the kinetics of nitrided layer growth) is both economical and environmentally friendly and meets with an increasing interest from the industrial consumers. Particular examples of industrial applications of simulator will be mentioned in article. Moreover, this article will show main functions, possibilities and advantages of simulator program; it will also present function called “simulation solver”, which allows optimization of process parameters.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Tool path definition in Virtual Machines world
Autorzy:: Wypysiński, R.
Tematy:: virtual machine
virtual machining
machine simulator
simulation process
simulation software
Eureka; Pokaż więcej
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Powiązania:: https://bibliotekanauki.pl/articles/132140.pdf Link otwiera się w nowym oknie
Opis:: Virtual Machine (VM), called also machine simulator, is 3D computer model which is geometrically and functionally the same like real machine (CNC machine tool or robot). They are used mainly for different kind of syntax errors and collision detection in CNC programs. Whole simulation process is also called Virtual Machining. This kind of off-line programming require CAM software support to generate tool paths and transform them to machine commands. The most advanced virtual machining software gives more possibilities to influence machines behavior – it is not only simulation software. This article describe it based on Eureka virtual machining software.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Modelowanie procesu działania przyrządów pokładowych statku powietrznego w symulatorze diagnostycznym samolotu M-28
Modeling of process of deck airship instrument operation in M-28 aircraft diagnostic simulator
Autorzy:: Golański, P.
Tematy:: samolot M-28
symulator diagnostyczny
języki modelowania procesów
process modeling
diagnostic simulator
M-28 aircraft; Pokaż więcej
Wydawca:: Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Powiązania:: https://bibliotekanauki.pl/articles/276688.pdf Link otwiera się w nowym oknie
Opis:: Artykuł dotyczy problematyki modelowania procesów związanych z działaniem urządzeń pokładowych statku powietrznego. Przedstawiono w nim wyniki prac nad określeniem metody opisu działania przyrządów samolotu PZL M-28 na potrzeby symulatora diagnostycznego. Do opisu działania przyrządów zaproponowano zastosowanie odpowiednio zdefiniowanego języka. Przedstawiono jego składnię i semantykę oraz przykład jego zastosowania do opisu działania wybranych przyrządów. Ponadto przedstawiono sposób wykorzystania tak sformalizowanych opisów w symulatorze diagnostycznym.
This article applies to process modeling problems associated with the operation of deck airship instruments. It presents the results of work on defining methods for the description of the instruments action of PZL M-28 airship for diagnostic simulator. For the description of the instruments action it proposes to use language appropriately defined. It presents the syntax and semantics, and example of its use to describe the action of selected instruments. In addition, it demonstrates how to use such a formal diagnostic description in the simulator.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Crude oil transfer safety analysis and oil spills prevention in port oil terminal
Autorzy:: Blokus, Agnieszka
Kwiatuszewska-Sarnecka, Bożena
Wilczyński, Przemysław
Wolny, Paweł
Tematy:: oil port terminal
oil transfer
operation process
system reliability
oil spill
human factor
pressure upsurge
safety procedures
ESD System
LCH Simulator; Pokaż więcej
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Powiązania:: https://bibliotekanauki.pl/articles/2068697.pdf Link otwiera się w nowym oknie
Opis:: The paper describes the problem of crude oil transfer in a port oil terminal and includes the safety analysis of this operation and analysis of potential causes and possible scenarios of oil spill events in a port terminal. The operation process of crude oil transfer is described and its statistical identification is given. The reliability and availability analysis of the system of crude oil transfer in a port terminal is performed. Moreover, analysis of crude oil transfer process taking into account the human factor is provided. The Fault Tree Analysis and sensitivity analysis for oil spill event in a port terminal is proposed to identify and analyse potential causes and possible scenarios of oil spill. Introducing methods for the prevention of oil spills, special attention is paid to safety procedures during liquid cargo transfer. Technical solutions used in oil terminals are described and recommendation regarding the Emergency Shutdown System are given. Additionally, associated safety systems, such as surge relief system, are described. Emphasizing the role of human factor in the process of crude oil transfer and its safety, trainings on the Liquid Cargo Handling Simulator are proposed to improve skills and knowledge of personnel on board and ashore.
Dostawca treści:: Biblioteka Nauki

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