Thermal Field Analysis of Matrix Heating System on Thermoforming Machine

2013 ◽  
Vol 664 ◽  
pp. 853-858
Author(s):  
Chun Hui Situ ◽  
Qing Qing Luo ◽  
Tao Mei ◽  
Jiang Zhuang
Keyword(s):  
Temperature Distribution ◽  
Food Packaging ◽  
Thermal Field ◽  
Heating System ◽  
Field Analysis ◽  
Heating Zone ◽  
The Finite Element Method ◽  
Uniform Heating ◽  
Linear Distribution ◽  
Uneven Heating

Thermoforming machine plays a very important role in industrial production, food packaging and other industries. In traditional thermoforming machine, highest temperature often appears in the center of the heating zone, and gradually reduces from the middle to both sides. It results in uneven heating, reducing the rate of finished products and a waste of resources. According to the finite element method, this article established the thermal field model of matrix heating system in thermoforming machine and simulated the temperature distribution of plastic in heating system under the conditions of “uniform heating” and “non-uniform heating” separately. It found that under the condition of “non-uniform heating”, the temperature distribution appeared uniform. The temperature of main region to be heated appeared approximately linear distribution, with the variation range of less than 5 °C, resulted in better effect than that under the condition of “uniform heating”

scholarly journals Industrial heating system creating given temperature distribution

2008 ◽  
Vol 5 (1) ◽  
pp. 57-66 ◽  
Author(s):  
Ilona Iatcheva ◽  
Ilonka Lilianova ◽  
Hristophor Tahrilov ◽  
Rumena Stancheva
Keyword(s):  
Temperature Distribution ◽  
Induction Heating ◽  
Heating System ◽  
Field Analysis ◽  
The Finite Element Method ◽  
Optimization Task ◽  
Surface Method ◽  
Nonlinear Transient ◽  
Industrial Heating ◽  
Induction Heating System

The aim of the work is precise coupled electromagnetic-temperature field analysis using the finite element method of an induction heating system and creation of adequate field models at chosen control points. The obtained models have been applied in an optimization task, concerning special requirements for temperature distribution in the heated detail. The field analysis problem was solved as nonlinear, transient and axisymmetrical. The field models used in the optimization problem were based on the Response surface method and Design of experiment. The presented example refers to a real induction heating system. Heated details after plastic deformation and hardening are used for producing farm instruments.

Coupled Electromagnetic-Thermal Field Investigation in Induction Heating Device

2009 ◽  
Vol 152-153 ◽  
pp. 407-410
Author(s):  
Ilona Ilieva Iatcheva ◽  
Rumena Stancheva ◽  
Hristofor Tahrilov ◽  
Ilonka Lilianova
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Induction Heating ◽  
Heating System ◽  
Field Investigation ◽  
Field Analysis ◽  
The Finite Element Method ◽  
Nonlinear Transient ◽  
Induction Heating System ◽  
Element Method

The aim of the work is precise coupled –electromagnetic and temperature field analysis of an induction heating system by finite element method. Presented example is referred to real induction heating system. The problem was solved as nonlinear, transient and axisymmetrical. The numerical model of the coupled fields is based on the finite element method and electromagnetic and temperature distributions have been obtained using COMSOL 3.3 software package.

Key Technology Research on Mould Heating System of Injecting Machine

2010 ◽  
Vol 97-101 ◽  
pp. 3579-3582
Author(s):  
Jin Guo Li ◽  
Lin Kang
Keyword(s):  
Power Distribution ◽  
Thermal Field ◽  
Design Method ◽  
Heating System ◽  
Field Analysis ◽  
Heating Process ◽  
Technology Research ◽  
Hot Plate ◽  
Plate Temperature ◽  
Control Precision

Effective calculated method of temperature field analysis was studied on the hot plate by CAE technologies. It provides design method and heating process for the mold. According to the specificity of hot plate, reasonable location of the thermocouple is discussed, power distribution and layout are designed, heating process of the hot plate is studied, so that hot plate temperature reaches the specified temperature and distributes. Feasible scheme has been got by computer simulation and the result is verified by experiment. The two problems of the temperature control precision and surface thermal field has been solved.

scholarly journals 3D field analysis in 3-phase amorphous modular transformer under increased frequency operation

2015 ◽  
Vol 64 (1) ◽  
pp. 119-127 ◽  
Author(s):  
Bronisław Tomczuk ◽  
Dariusz Koteras
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Temperature Distribution ◽  
Power System ◽  
Infrared Camera ◽  
Field Analysis ◽  
The Finite Element Method ◽  
Core Surface ◽  
Calculated Temperature ◽  
The Core

Abstract The calculations results of the temperature distribution in a 3-phase transformer with modular amorphous core are presented. They were performed for two frequency values which were higher than the power system one. For the 3D field analyses the Finite Element Method (FEM) was used. The calculated temperature at the points of the core surface has been verified using an infrared camera.

Simulation of Concrete in Winter with Self-Limiting Heating Band

2022 ◽  
Vol 905 ◽  
pp. 297-302
Author(s):  
Lin Liu ◽  
Mei Qing Zhang
Keyword(s):  
Temperature Field ◽  
Temperature Distribution ◽  
Analytical Calculation ◽  
Heating Zone ◽  
Surface Layout ◽  
Combined Action ◽  
Early Age Concrete ◽  
Cracking Risk ◽  
Concrete Component ◽  
Better Than

In order to investigate the temperature distribution and cracking risk of concrete in winter under the combined action of heating zone and air layer, the analytical calculation method of early age concrete temperature field of concrete component under the combined action of self-limiting temperature band, cement hydration and air layer was established by taking concrete prism with self-limiting temperature band as an example. The model is applied to calculate and analyze the temperature distribution of concrete under different boundary conditions and different additional thermal field modes. The results show that: Under the conditions of internal layout, surface layout and thermal insulation layer outside the formwork, all components reach the critical strength after heating and curing for three days, which indicates that the heating band can provide temperature conditions for concrete curing in winter. Comparing the temperature field of different layout positions of heating belt, the uniformity of temperature field of heating belt outside the formwork is better than the other two layout methods.

Temperature Distribution of Hot Air Flow in Heating Zone for Drying Application

2014 ◽  
Vol 627 ◽  
pp. 153-157
Author(s):  
Nawadee Srisiriwat ◽  
Chananchai Wutthithanyawat
Keyword(s):  
Temperature Distribution ◽  
Air Temperature ◽  
Power Supply ◽  
Air Flow ◽  
Heating Zone ◽  
Velocity Control ◽  
Rectangular Duct ◽  
Air Velocity ◽  
Hot Air ◽  
Set Up

The temperature distribution of hot air flow in heating zone of a rectangular duct has been investigated for drying application. The experimental set-up consists of a heater and a fan to generate the hot air flow in the range of temperature from 40 to 100°C and the range of air velocity between 1.20 and 1.57 m/s. An increase of the heater power supply increases the hot air temperature in the heating zone while an increase of air velocity forced by fan decreases the initial temperature at the same power supply provided to generate the hot air flow. The temperature distribution shows that the hot air temperature after transferring through air duct decreases with an increase of the length of the rectangular duct. These results are very important for the air flow temperature and velocity control strategy to apply for heating zone design in the drying process.

The Effect of Curvature and Torsion on the Temperature Distribution in a Helix

1985 ◽  
Vol 52 (3) ◽  
pp. 529-532 ◽  
Author(s):  
D. D. Sayers ◽  
M. C. Potter
Keyword(s):  
Differential Equation ◽  
Finite Element Method ◽  
Partial Differential Equation ◽  
Temperature Distribution ◽  
Strong Dependence ◽  
Maximum Temperature ◽  
Nonuniform Heating ◽  
The Finite Element Method ◽  
Curvature Parameter ◽  
Curvature And Torsion

Traditional analysis treats the helix as a straight wire with the effects of nonuniform heating, torsion, and large curvature ignored. Using a helical coordinate system the governing partial differential equation including these effects is derived. The equation is then solved numerically using the finite element method. The results indicate a strong dependence of the temperature on the torsion parameter when the curvature parameter is significant. As the curvature parameter increases, the temperature distribution becomes skew-symmetric and the maximum temperature in the helix increases. Nonuniform heating influences the temperature distribution independent of the curvature and torsion.

scholarly journals Thermal Comfort Modeling of a Church Heated with Static Heaters

2019 ◽  
Vol 9 (1) ◽  
pp. 121-124
Author(s):  
Florin-Emilian Turcanu ◽  
Ana Diana Ancas ◽  
Mihai Profire ◽  
Marina Verdes ◽  
Marius Costel Balan
Keyword(s):  
Temperature Distribution ◽  
Thermal Comfort ◽  
Heating System ◽  
Xviii Century ◽  
Static Heating ◽  
The Impact ◽  
The Church

Abstract This paper evaluates a static heating system from a church. They are presented in almost every church. Temperature distribution in the church is done in 2d plane. The simulation is presented on a particular example, the Dormition of the Mother of God Church from Jassy, Romania. The heating system had been simulated in FLUENT and the consequences over the interior climate in the church are showed. An important issue is the impact of this system over the artwork, the church being rise in XVIII century.

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