Computer Simulation of Drying Process in Tube Rotary Dryer

2012 ◽  
Vol 201-202 ◽  
pp. 617-620
Author(s):  
Hua Bo He
Keyword(s):  
Heat Transfer ◽  
Computer Simulation ◽  
Object Oriented ◽  
Simulation Software ◽  
Object Oriented Programming ◽  
Transfer Model ◽  
Drying Process ◽  
Rotary Dryer ◽  
Windows Xp ◽  
Actual Test

With the particle transfer model and object-oriented programming method, the initiatory computer simulation software of indirect drying process is developed in windows XP system and MFC environment. The overall coefficient of heat transfer in the drying process and the changes of material humidity and temperature between the inlet and outlet are calculated by the simulation software. The actual test data verify that the computer simulation software is convenient, effective and reliable.

FRTCOILS: A General Purpose Simulation Software for Design and Prediction of Thermal and Hydraulic Performance of Finned-Tube Compact Heat Exchangers

2007 ◽  
Author(s):  
Maung Naing Naing Tun ◽  
Nilufer Egrican
Keyword(s):  
Heat Transfer ◽  
Pressure Drop ◽  
Heat Exchangers ◽  
Water Solution ◽  
Finned Tube ◽  
Simulation Software ◽  
Operating Conditions ◽  
Object Oriented Programming ◽  
Compact Heat Exchangers ◽  
Cooling Coils

This paper presents computer software developed for rating and optimum selection of finned circular tubes compact heat exchangers with various coil geometries. The software is developed to use as a computing tool for commercial and R&D purposes in FRITERM A.S, an original equipment manufacturer (OEM) of finned tube heat exchangers. Finned-tube heat exchangers are highly utilized in refrigeration and process industries and heat transfer and pressure drop calculations are very important to manufactures and design engineers. For this purpose, a simulation and design software to predict the performance of finned-tube heat exchangers is presented. In finned-tube coils fin side fluid is air and tube side fluid can be water, oil, glycol water solution mixture and refrigerants. The analysis and rating of coils at dry and wet operating conditions are presented. Design and the most suitable selections of coils at the given parameters and design constraints from many different coil geometries are also performed in the software. User-friendly object-oriented programming C# is applied in developing the software. The software is developed in modular basic. Six modules are developed: Heating Coils, Cooling Coils, Condenser Coils, Steam Coils, Heat Recovery Coils and Evaporator (DX) Coils. REFPROP is also integrated in the software and all fluids’ thermal and transport properties are obtained from REFPROP. Heat transfer and pressure drop correlations available from literature are evaluated with recommendations. Simulated results are verified against experimental results.

Drying Process Optimization for an API Solvate Using Heat Transfer Model of an Agitated Filter Dryer

2012 ◽  
Vol 101 (10) ◽  
pp. 3886-3895 ◽  
Author(s):  
Nandkishor K. Nere ◽  
Kimberley C. Allen ◽  
James C. Marek ◽  
Shailendra V. Bordawekar
Keyword(s):  
Heat Transfer ◽  
Process Optimization ◽  
Heat Transfer Model ◽  
Transfer Model ◽  
Drying Process

Heat Transfer Model for Pulse Laser Assisted Machining of ZrO2

2016 ◽  
Vol 836-837 ◽  
pp. 430-435
Author(s):  
Huan Lu ◽  
Shu Long Wang ◽  
Ning He ◽  
Liang Li ◽  
Xiu Qing Hao
Keyword(s):  
Heat Transfer ◽  
Temperature Distribution ◽  
Pulse Laser ◽  
Heat Transfer Model ◽  
Simulation Software ◽  
Heat Radiation ◽  
Transfer Model ◽  
Laser Assisted Machining ◽  
Simulated Temperature ◽  
Infrared Temperature Measurement

Laser assisted machining (LAM) is one important solution for machining difficult-to-machine materials. The heat transfer model of quasi steady state in laser assisted micro machining is built, and the simulation software for temperature distribution measurement is developed based on MATLAB. The simulated temperature distribution of the ZrO2 ceramic heated by pulse laser shows a good agreement of tendency with the corresponding experimental results through the infrared temperature measurement method, while the simulated temperature is consistently overestimated. This difference maybe results from the neglect of the heat loss caused by the heat radiation and the heat convection in the model. The proposed model in this paper could provide reference for the selection of optimal process parameters and improve the machining quality, which are closely related to the temperature distribution.

scholarly journals Imitation analysis of cremation furnace heat transfer under the finite element simulation software

2020 ◽  
Vol 24 (5 Part B) ◽  
pp. 3357-3365
Author(s):  
Jingyun Jia ◽  
Xiaolong Zou ◽  
Xiantao Chen ◽  
Haibin Wang ◽  
Qiang Sun
Keyword(s):  
Heat Transfer ◽  
Finite Element ◽  
Finite Element Model ◽  
Element Model ◽  
Simulation Software ◽  
Design Parameters ◽  
Combustion Model ◽  
Transfer Model ◽  
Generation Process ◽  
Finite Element Software

To promote the full combustion efficiency of a body cremation furnace during cremation, the temperature and velocity of cremation furnace in the process of body combustion are simulated by finite element model. Firstly, the simplified finite element analysis model of cremation furnace and its finite element software is introduced in this study, and then the flow model, heat transfer model, and combustion model needed in the heat transfer process are described. According to the requirements of the finite element model, the mesh generation process of the cremation furnace model and the numerical solution method are presented. Finally, the model used in this study is verified by the test and simulation results. The results show that the method is reliable. Besides, the design parameters of the temperature part and the combustion speed part of the furnace under six different working conditions are analyzed to further optimize the structure of the furnace. The results of this study provide a good theoretical basis for cremation equipment and promote the development of China?s cremation industry.

The Computerized Simulation Software Development of the Pneumatic DTH

2011 ◽  
Vol 317-319 ◽  
pp. 2113-2117 ◽  
Author(s):  
Qing Shan Xiong ◽  
Jia Li ◽  
Shuang Liang Liu ◽  
Fan Jiu Kong ◽  
Yong Sheng Ye
Keyword(s):  
Operating Performance ◽  
Object Oriented ◽  
Simulation Software ◽  
Object Oriented Programming ◽  
Performance Parameters ◽  
Development Environment ◽  
Ergodic Method ◽  
Air Chamber ◽  
Work Mechanism ◽  
Computerized Simulation

Designing the pneumatic DTH by the method of anology, experience and actual test, the investment is large, the cycle is long, and it is difficult to achieve the optimization. In order to research profoundly the DTH work mechanism and describe piston movement laws in detail, physical model is established according to the actual conditions, finite difference method is adopted, thermodynamics and kinematics are applied. Using object-oriented programming, the pneumatic DTH computerized simulation software is developed whose integrated development environment is VB. The software can calculate acceleration, velocity, displacement, pressure, temperature of the front and back air chamber at any time and the operating performance parameters of the pneumatic DTH. The law of many factors influencing on the pneumatic DTH performance can be found and the optimization of the pneumatic DTH structure parameter can be achieved by the ergodic method. Not only the pneumatic DTH but also the no-dig impactor is designed by computerized simulation.

scholarly journals On the Benefits of Using Object-Oriented Programming for the Objective Evaluation of Vehicle Dynamic Performance in Concurrent Simulations

Machines ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 41 ◽  
Author(s):  
Michele Perrelli ◽  
Francesco Cosco ◽  
Giuseppe Carbone ◽  
Basilio Lenzo ◽  
Domenico Mundo
Keyword(s):  
Dynamic Performance ◽  
Safety Evaluation ◽  
Object Oriented ◽  
Objective Evaluation ◽  
Steering System ◽  
Simulation Software ◽  
Object Oriented Programming ◽  
Vehicle Dynamic ◽  
Passenger Cars ◽  
Concurrent Simulations

Assessing passenger cars’ dynamic performance is a critical aspect for car industries, due to its impact on the overall vehicle safety evaluation and the subjective nature of the involved handling and comfort metrics. Accordingly, ISO standards, such as ISO 4138 and ISO 3888, define several specific driving tests to assess vehicle dynamics performance objectively. Consequently, proper evaluation of the dynamic behaviour requires measuring several physical quantities, including accelerations, speed, and linear and angular displacements obtained after instrumenting a vehicle with multiple sensors. This experimental activity is highly demanding in terms of hardware costs, and it is also significantly time-consuming. Several approaches can be considered for reducing vehicle development time. In particular, simulation software can be exploited to predict the approximate behaviour of a vehicle using virtual scenarios. Moreover, motion platforms and detail-scalable numerical vehicle models are widely implemented for the purpose. This paper focuses on a customized simulation environment developed in C++, which exploits the advantages of object-oriented programming. The presented framework strives to perform concurrent simulations of vehicles with different characteristics such as mass, tyres, engine, suspension, and transmission systems. Within the proposed simulation framework, we adopted a hierarchical and modular representation. Vehicles are modelled by a 14 degree-of-freedom (DOF) full-vehicle model, capable of capturing the dynamics and complemented by a set of scalable-detail models for the remaining sub-systems such as tyre, engine, and steering system. Furthermore, this paper proposes the usage of autonomous virtual drivers for a more objective evaluation of vehicle dynamic performances. Moreover, to further evaluate our simulator architecture’s efficiency and assess the achieved level of concurrency, we designed a benchmark able to analyse the scaling of the performances with respect to the number of different vehicles during the same simulation. Finally, the paper reports the proposed simulation environment’s scalability resulting from a set of different and varying driving scenarios.

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