Modeling and simulation process for solketal synthesis from glycerol and acetone by catalytic distillation in a modified structure of a divided wall column

Author(s):  
Gheorghe Bumbac ◽  
Ionut Banu
2014 ◽  
Vol 875-877 ◽  
pp. 929-933 ◽  
Author(s):  
Hui Meng ◽  
Li Qiang Wang ◽  
Zong Qi Han ◽  
Shu Bin Lei

The intake system sub-model, the fuel dynamics sub-model and the power output sub-model are studied in this paper based on Elbert Hendricks engine mean model. Engine output characteristics using computational model is established in MATLAB/Simulink. Parameter of the modeling and simulation process is obtained through experiments, and finally, the engine bench test is done, and compared it with the simulation curve in same conditions. The results show that the model calculation has smaller error, higher precision, and which can meet the basic requirements of the engine modeling in actual control.


2019 ◽  
Vol 49 (1) ◽  
Author(s):  
Adolfo Vicente Araújo ◽  
Daniel Marçal de Queiroz ◽  
Gemima Santos Arcanjo ◽  
Santos Henrique Brant Dias ◽  
Renato Martins Alves ◽  
...  

ABSTRACT: The objective of this research was to use the modeling and computer simulation to support decision makers, aiming to increase the productive capacity of the agro-industry of LaticínioFunarbe. Specifically, it has modeled the current yoghurt production sector for simulation that enables it to meet the new demand. The Arena 14.7 simulation software was used to conduct the modeling. To validate the model, the output of yoghurt production collected at the factory for three months was compared with the output from the simulated computational model. Two indicators were established to perform analyzes of four different scenarios. The implemented model resulted in an increase in the production capacity of 5,000L.d-1 of yoghurt, corresponding to a production of yoghurts processed daily three times higher than the current production.


2020 ◽  
Vol 34 (3) ◽  
pp. 149-167
Author(s):  
João Paulo Henrique ◽  
Ruy de Sousa Jr. ◽  
Argimiro Resende Secchi ◽  
Mauro Antonio da Silva Sá Ravagnani ◽  
Abdessamad Barbara ◽  
...  

The divided wall column (DWC) can achieve sharp separations of three or more components in a single shell, substituting conventional sequences of two or more binary<br /> distillation columns, with lower expenses. Despite these advantages, DWC models are not available in commercial chemical process simulators. To simulate DWC, users must employ instances of conventional column model and couple them in different configurations. In this paper, a DWC model was developed in EMSO (Environment for Modeling, Simulation and Optimization). DWC model was then used for simulating the separation of an equimolar mixture of three hydrocarbons. Results show that, depending on the number of trays, DWC presented energy savings compared to two ordinary distillation columns. Better separation was obtained when the number of divided trays was close to half the number of total trays. However, the liquid and vapor flow rates split into the divided section play a key role in the separation.


2013 ◽  
Vol 694-697 ◽  
pp. 462-465
Author(s):  
Bin Hua ◽  
Yi Lin Chi ◽  
Xue Jun Wang ◽  
Yan Fang Ding

The requirements of higher speed, safety and more smooth and comfortable travelling are increasing strongly, this leads to the need of predictive maintenance of railway line, tamping machines have been used for this purpose. This paper presents the results of vibration characteristic of tamping device. Firstly, the basic working principle of tamping device was simply described; Then a simulation model of tamping device was established using SIMULINK in terms of mechanism principle; Finally, some vibration parameters were researched, such as velocity, acceleration, displacement of tamping device, which reflect the vibration characteristic of tamping device. In addition, the modeling process of simulation model was described, the function of SIMULINK was also simply recommended. The main aim of this paper is to propose an analysis method on facility vibration characteristic, which visualized reflects the kinematics characteristic of mechanism. The results show that the application of the technology can make the simulation process more visualization. The modeling process more simply, thus greatly improve modeling and simulation efficiency, and directly achieve our aims.


2011 ◽  
Vol 291-294 ◽  
pp. 377-380 ◽  
Author(s):  
Zai Chun Zhang ◽  
Gao Yan Zhong ◽  
Yong Gao

A method for motion control and analysis of five-axis milling machine was proposed by means of simulation. The method started from solid modeling of five-axis milling machine in PRO/E, and then imported the model into ADAMS, generating its own solid model, through seamless interface software Mechanism/Pro 2005. Therefore, co-simulation of PRO/E and ADAMS was realized. On the platform of ADAMS, constraints and drivers necessary for simulation was added to the solid model and the simulation was begun. During the simulation process, motion parameters of each head were produced, and these information directly provided a control basis for NC machining of five-axis milling machine. Thus, the performance study of five-axis milling machine through simulation was realized on the computer and it provided an effective method for the engineering design of the machine.


2014 ◽  
Vol 643 ◽  
pp. 77-82
Author(s):  
Yang Du ◽  
Guo Lin Xu

To use C to build the simulation process in PSCAD, directing current control algorithm by using dq0 transform, the C language code of simulation can be directly applied to the actual SVG controller. The PI parameters can directly guide the field set, avoiding the complicated scene setting.


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