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An investigation into the effect of decorative covers on the heat output from LPHW Radiators

Brady, LJ and Abdellatif, M and Cullen, J and Maddocks, J and Al - Shamma'a, A (2016) An investigation into the effect of decorative covers on the heat output from LPHW Radiators. Energy and Buildings, 133. pp. 414-422. ISSN 0378-7788

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Abstract

Low pressure hot water radiators are the most popular type of heat emitter used in UK buildings. Because of high surface temperatures, or for aesthetic reasons, radiators are often encased in some form of architectural casing which reduces their output. An alternative method of reducing surface touch temperature and enhancing the appearance of radiators may be achieved by using decorative covers. This research examines how the heat output from a radiator is affected by the application of an innovative magnetic decorative cover to the radiator surface. A series of tests was run which compared the heat output from a bare radiator, to the output when the radiator is installed (a) under a magnetic cover, and (b) within a traditional wooden cover. Since the heat output from a radiator is by convection and radiation, thermocouples were located on radiator and supporting wall surfaces, as well as in the air spaces around the radiator. By this means the temperature differences which drive both heat transfer mechanisms could be determined. Additionally, temperatures were also monitored by a thermal imaging camera. The scenario tests were carried out under steady state conditions at closed room space, with controlled room temperature. Results from the tests showed that magnetically applied radiator covers efficiency increased by 13 - 20% relative to traditional radiator wooden cover. In terms of space-heating, this can reduce energy input needed to achieve comfort temperature. This demonstrates that magnetic radiator covers can offer improved heating system energy performance. Keywords: Convection, radiator, radiation, radwraps, heat transfer, wooden cover. This demonstrates that magnetic radiator covers can offer improved heating system energy performance

Item Type: Article
Uncontrolled Keywords: Convection, radiator, radiation, radwraps, heat transfer, wooden cover
Subjects: T Technology > TD Environmental technology. Sanitary engineering
Divisions: Built Environment
Publisher: Elsevier
Related URLs:
Date Deposited: 30 Sep 2016 09:44
Last Modified: 28 Apr 2017 12:15
DOI or Identification number: 10.1016/j.enbuild.2016.09.065
Editors: Maddocks, J
URI: http://researchonline.ljmu.ac.uk/id/eprint/4222

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