Insulated container testing & rating system development

Vever, Thierry-Jacques Patrick (2015) Insulated container testing & rating system development. [USQ Project]

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Abstract

This research project seeks to develop a cheap, accurate, objective, repeatable and universal testing & rating system for insulated containers (eskies, chilly bins, coolers, ice boxes, cooler bags, pizza pouches, etc), similar to the star ratings for white goods, plumbing fixtures and motor vehicles, whether used for cold or hot items. Currently, there is no such system available on the domestic market, and none has been observed in any other market.

The testing consists of placing an empty vessel in a chamber at 5°C, and waiting until its temperature is in equilibrium with that chamber, then transferring it to a chamber at 55°C, and again waiting until equilibrium is reached, and the time taken to reach equilibrium is observed. This process is then reversed as a double check to compare heat ingress and heat egress.

The rating consists of taking the temperature differential and the time taken to reach steady-state and applying them to the volume of the vessel and the internal heat of air in the volume to determine a numerical result in W/K. The resultant number is the rating. This is far simpler than converting this into a number of stars (as is common with other ratings systems), and very quickly, consumers will begin to know the general range of numbers and be able to compare them to know what is sufficient for each of their needs.

Successful tests have been carried out to demonstrate that this is a viable testing & rating system which stands to benefit the general community whenever a consumer chooses to purchase an insulated container. By displaying the results of such a testing & rating system, manufacturers can instil confidence for their customers that their purchase will meet their needs with respect to the thermal performance of the chosen product.

This research project is ready to progress to a level of formulating a standard and a set of protocols with a view to starting commercial testing in established laboratories for existing manufacturers.


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Item Type: USQ Project
Item Status: Live Archive
Additional Information: Bachelor of Engineering (Mechanical Engineering) project
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering
Supervisors: Mossad, Ruth
Date Deposited: 06 Jun 2016 05:10
Last Modified: 06 Jun 2016 05:10
Uncontrolled Keywords: Heat Transfer, Energy Ratings, Ice Boxes
Fields of Research : 09 Engineering > 0913 Mechanical Engineering > 091399 Mechanical Engineering not elsewhere classified
URI: http://eprints.usq.edu.au/id/eprint/29244

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