Investigation of Heat Transfer in 9-Layer Film Blowing Process by using Variational Principles

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F13%3A43870106" target="_blank" >RIV/70883521:28610/13:43870106 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1063/1.4802606" target="_blank" >http://dx.doi.org/10.1063/1.4802606</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.4802606" target="_blank" >10.1063/1.4802606</a>

Result language

angličtina

Original language name

Investigation of Heat Transfer in 9-Layer Film Blowing Process by using Variational Principles

Original language description

In this work, coextrusion experiments utilizing an industrial 9-layer Brampton Engineering coextrusion film blowing line has been performed under different processing conditions (low/high air cooling intensity) in order to evaluate variational principlesbased modeling approach using energy equation utilizing variable heat transfer coefficient along the multi-layer bubble. It has been revealed that the variational principle based model can describe the bubble shape and temperature profile reasonably well even if the multi-layer film has been viewed as the static elastic membrane characterized only by one material parameter - bubble compliance J, which was not allow to vary along the bubble. Moreover, it has been found that if the freezeline height becomes long, heat transfer coefficient starts to vary significantly along the bubble which has crucial impact on the temperature profile along the multi-layer bubble. The performed theoretical parametric study revealed that increase in blow-

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

JP - Industrial processes and processing

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2013

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Novel Trends In Rheology V

ISBN

978-0-7354-1151-7

ISSN

0094-243X

e-ISSN

—

Number of pages

12

Pages from-to

107-118

Publisher name

American Institute of Physics

Place of publication

Melville

Event location

Zlín

Event date

Jul 30, 2013

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000319829500008