The Study of Infrared Heating on PET Bottles by Experiment and Adaptive Finite Volume Method

2012 ◽  
Vol 591-593 ◽  
pp. 750-753 ◽  
Author(s):  
Yi Chern Hsieh ◽  
Minh Hai Doan ◽  
Thi Thanh Hoi Pham
Keyword(s):  
Temperature Distribution ◽  
Finite Volume Method ◽  
Finite Volume ◽  
Infrared Camera ◽  
Object Oriented Programming ◽  
Infrared Heating ◽  
Proper Position ◽  
Pet Bottles ◽  
Key Factor ◽  
Volume Method

Stretch-Blow moulding (SBM) fabricate process is a well known method to produce PET bottles. During the construction procedure, PET surface temperature distribution controlled by infrared heating is the key factor about manufacture technique for the better quality of PET. This paper focuses on how to measure and estimate temperature distribution on the surface of semi-transparent polymers so that we can make sure the proper position and intensity of the infrared lamb. We use infrared camera to detect the real temperature distributions and C++ object-oriented programming to estimate the infrared radiation (IR) results by adaptive finite volume method (Adaptive FVM). The numerical results have been compared with experimental results and the consequence is satisfied. Multiple lambs’ cases and the interior temperature distribution in PET will be discussed in future.

Cooling Profile Analysis of Hot Strip Coil Using Finite Volume Method

2015 ◽  
Vol 789-790 ◽  
pp. 496-502
Author(s):  
Subhamita Chakraborty ◽  
Shubhabrata Datta ◽  
Sujay Kumar Mukherjea ◽  
Partha Protim Chattopadhyay
Keyword(s):  
Temperature Distribution ◽  
Finite Volume Method ◽  
Finite Volume ◽  
Profile Analysis ◽  
Transformation Product ◽  
Distribution Profile ◽  
Hot Strip ◽  
Cooling Behavior ◽  
Volume Method ◽  
Strip Coil

To get the low temperature transformation product of austenite, study of cooling behavior of coil is essential. Temperature distribution profile of the hot strip coil has been determined by using finite volume method (FVM) vis-à-vis finite difference method (FDM). It has been demonstrated that FVM offer greater computational reliability in estimation of contact pressure distribution and hence the temperature distribution for curved and irregular profiles, owing to the flexibility in selection of grid geometry and discrete point position, Moreover, use of finite volume concept allows enforcing the conservation of mass, momentum and energy, leading to enhanced accuracy of prediction.

Prediction of temperature distribution in the workpiece during multi-pass grinding by finite volume method

2017 ◽  
Vol 18 (11) ◽  
pp. 1485-1493 ◽  
Author(s):  
Umamaheswari Madopothula ◽  
Vijayaraghavan Lakshmanan ◽  
Ramesh Babu Nimmagadda ◽  
Pradeev Elango
Keyword(s):  
Temperature Distribution ◽  
Finite Volume Method ◽  
Finite Volume ◽  
Volume Method

scholarly journals Modelling the Heat During the Injection Stretch Blowing Moulding: Infrared Heating and Blowing Modelling

2012 ◽  
Author(s):  
Yun Mei Luo ◽  
Luc Chevalier ◽  
Françoise Utheza
Keyword(s):  
Temperature Distribution ◽  
Infrared Camera ◽  
Infrared Heating ◽  
Initial Temperature Distribution ◽  
Final Thickness ◽  
Pet Bottles ◽  
The Monte Carlo Method ◽  
Element Approach ◽  
Best Fit ◽  
Initial Heating

Effects of temperature: initial heating conditions or self heating during the process, are very important during the injection stretch blow moulding (ISBM) process of PET bottles. The mechanical characteristics of the final products, which are mainly controlled by the final thickness and the orientation of the molecular chains, depend strongly on the process temperature. Modelling the heat transfer during the ISBM process is therefore necessary. In the first part of this paper, an experimental study is presented in order to measure the initial temperature distribution and to identify the thermal properties of the PET. An infrared camera has been used to determine the surface temperature distribution of the PET sheets which are heated by infrared (IR) lamps. The Monte Carlo method is used to identify the parameters best fit from the temperature evolution. In the second part, a thermo-viscohyperelastic model is used to predict the PET behaviour, taking into account the strain rate and temperature dependence. A finite element approach implemented in matlab is used to achieve the numerical simulation.

Finite Volume Method for Analysis of Convective Longitudinal Fin with Temperature-Dependent Thermal Conductivity and Internal Heat Generation

2017 ◽  
Vol 374 ◽  
pp. 106-120 ◽  
Author(s):  
Gbeminiyi M. Sobamowo ◽  
Bayo Y. Ogunmola ◽  
Gaius Nzebuka
Keyword(s):  
Heat Transfer ◽  
Thermal Conductivity ◽  
Temperature Distribution ◽  
Finite Volume Method ◽  
Finite Volume ◽  
Heat Generation ◽  
Internal Heat ◽  
Internal Heat Generation ◽  
Temperature Dependent ◽  
Volume Method

In this study, heat transfer in a longitudinal rectangular fin with temperature-dependent thermal properties and internal heat generation has been analyzed using finite volume method. The numerical solution was validated with the exact solution for the linear problem. The developed heat transfer models were used to investigate the effects of thermo-geometric parameters, coefficient of heat transfer and thermal conductivity (non-linear) parameters on the temperature distribution, heat transfer and thermal performance of the longitudinal rectangular fin. From the results, it shows that the fin temperature distribution, the total heat transfer, and the fin efficiency are significantly affected by the thermo-geometric of the fin. Therefore, the results obtained in this analysis serve as basis for comparison of any other method of analysis of the problem and they also provide platform for improvement in the design of fin in heat transfer equipment.

scholarly journals Temperature distribution in a cigarette oven during baking

2015 ◽  
Vol 19 (4) ◽  
pp. 1201-1204 ◽  
Author(s):  
Qing Zhang ◽  
Jia-Cun Shao ◽  
Hang Zhao ◽  
Kai Zhang ◽  
Zhong-Di Su
Keyword(s):  
Temperature Field ◽  
Energy Consumption ◽  
Temperature Distribution ◽  
Flow Field ◽  
Finite Volume Method ◽  
Numerical Investigation ◽  
Finite Volume ◽  
Volume Method ◽  
The Relationship

Baking treatment is one of the most important processes of cigarette production, which can significantly enhance quality of tobacco. Theoretical and numerical investigation on temperature distribution in a cigarette oven during baking was carried out. The finite volume method was used to simulate the flow field. The relationship between the uniformity of temperature field and impeller?s speed was given finally, which is helpful to optimize cigarette oven with better quality and less energy consumption.

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