Staff View: Enhancement of convective heat transfer to polymer manufacturing molds

Enhancement of convective heat transfer to polymer manufacturing molds

Many complex and dimensionally stable plastic products are manufactured using processes such as blow molding, thermoforming, injection molding, and rotational molding due to various advantages offered by these techniques. However, in many cases, product cycle times—and hence productivity—are limited...

Full description

Saved in:

Bibliographic Details
Main Authors:	Abdullah, Mohamad Zaki, Bickerton, Simon, Bhattacharyya, Debes
Format:	Article
Published:	2005
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://eprints.utp.edu.my/4773/1/Enhancement_of_Convective_Heat_Transfer.pdf http://eprints.utp.edu.my/4773/
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my.utp.eprints.4773
record_format	eprints
spelling	my.utp.eprints.47732017-01-19T08:27:29Z Enhancement of convective heat transfer to polymer manufacturing molds Abdullah, Mohamad Zaki Bickerton, Simon Bhattacharyya, Debes TJ Mechanical engineering and machinery Many complex and dimensionally stable plastic products are manufactured using processes such as blow molding, thermoforming, injection molding, and rotational molding due to various advantages offered by these techniques. However, in many cases, product cycle times—and hence productivity—are limited by the time required to heat up and cool down the mold and the product. This is particularly true for rotational molding of thermoplastics. Due to the complex rotation of the mold, heating and cooling are most commonly achieved by convection to the external surfaces of the mold using air as the transfer medium. The objective of this work is to achieve substantial enhancement in convective heat transfer to mold exteriors and ultimately to reduce production cycle times. In this paper, the application of extended surfaces and roughened textures to molds is investigated. Extended surfaces have the potential to enhance heat transfer by increasing the surface area. Roughness elements are utilized in conjunction with turbulent flows, also producing significant increases in heat transfer rates. A steady state analysis using well-established techniques has been performed to estimate the heat transfer enhancement, and a series of simple experiments have been carried out. The predicted enhancements to heat transfer are substantial, and have been verified by the preliminary experimental results. 2005-01-01 Article PeerReviewed application/pdf http://eprints.utp.edu.my/4773/1/Enhancement_of_Convective_Heat_Transfer.pdf Abdullah, Mohamad Zaki and Bickerton, Simon and Bhattacharyya, Debes (2005) Enhancement of convective heat transfer to polymer manufacturing molds. Polymer Engineering and Science, 45 . pp. 114-124. http://eprints.utp.edu.my/4773/
institution	Universiti Teknologi Petronas
building	UTP Resource Centre
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Petronas
content_source	UTP Institutional Repository
url_provider	http://eprints.utp.edu.my/
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Abdullah, Mohamad Zaki Bickerton, Simon Bhattacharyya, Debes Enhancement of convective heat transfer to polymer manufacturing molds
description	Many complex and dimensionally stable plastic products are manufactured using processes such as blow molding, thermoforming, injection molding, and rotational molding due to various advantages offered by these techniques. However, in many cases, product cycle times—and hence productivity—are limited by the time required to heat up and cool down the mold and the product. This is particularly true for rotational molding of thermoplastics. Due to the complex rotation of the mold, heating and cooling are most commonly achieved by convection to the external surfaces of the mold using air as the transfer medium. The objective of this work is to achieve substantial enhancement in convective heat transfer to mold exteriors and ultimately to reduce production cycle times. In this paper, the application of extended surfaces and roughened textures to molds is investigated. Extended surfaces have the potential to enhance heat transfer by increasing the surface area. Roughness elements are utilized in conjunction with turbulent flows, also producing significant increases in heat transfer rates. A steady state analysis using well-established techniques has been performed to estimate the heat transfer enhancement, and a series of simple experiments have been carried out. The predicted enhancements to heat transfer are substantial, and have been verified by the preliminary experimental results.
format	Article
author	Abdullah, Mohamad Zaki Bickerton, Simon Bhattacharyya, Debes
author_facet	Abdullah, Mohamad Zaki Bickerton, Simon Bhattacharyya, Debes
author_sort	Abdullah, Mohamad Zaki
title	Enhancement of convective heat transfer to polymer manufacturing molds
title_short	Enhancement of convective heat transfer to polymer manufacturing molds
title_full	Enhancement of convective heat transfer to polymer manufacturing molds
title_fullStr	Enhancement of convective heat transfer to polymer manufacturing molds
title_full_unstemmed	Enhancement of convective heat transfer to polymer manufacturing molds
title_sort	enhancement of convective heat transfer to polymer manufacturing molds
publishDate	2005
url	http://eprints.utp.edu.my/4773/1/Enhancement_of_Convective_Heat_Transfer.pdf http://eprints.utp.edu.my/4773/
_version_	1738655368390639616
score	13.211869

Enhancement of convective heat transfer to polymer manufacturing molds

Similar Items