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

机译：研究装饰罩对LPHW散热器的热量输出的影响

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摘要

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. (C) 2016 Elsevier B.V. All rights reserved.
机译：低压热水散热器是英国建筑中最流行的散热器类型。由于较高的表面温度或出于美学原因，散热器经常被封装在某种形式的建筑外壳中，这降低了其输出。降低表面接触温度并增强散热器外观的另一种方法可以通过使用装饰罩来实现。这项研究研究了如何通过在散热器表面应用创新的磁性装饰罩来影响散热器的热量输出。进行了一系列测试，将裸露的散热器的热量输出与散热器安装在（a）磁性盖下和（b）传统的木制盖内时的热量输出进行了比较。 ``由于散热器的热量是通过对流和辐射输出的，因此热电偶位于散热器和支撑壁表面以及散热器周围的空气空间中。通过这种方式，可以确定驱动两个传热机构的温差。另外，温度还通过热成像相机进行监控。在稳定的条件下，在封闭的房间空间内，在受控的室温下进行情景测试。测试结果表明，与传统的散热器木盖相比，磁性散热器盖的效率提高了13-20％。就空间供暖而言，这可以减少实现舒适温度所需的能量输入。这表明磁性散热器盖可以提供改善的加热系统能源性能。 （C）2016 Elsevier B.V.保留所有权利。

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  • 来源
    《Energy and Buildings》 |2016年第12期|414-422|共9页
  • 作者

    Brady Laurence; Abdellatif Mawada; Cullen Jeff; Maddocks James; Al-Shammaa Ahmed;

  • 作者单位

    Liverpool John Moores Univ, Fac Engn & Technol, Sch Built Environm, Cherie Booth Bldg,Byrom St, Liverpool L3 3AF, Merseyside, England;

    Liverpool John Moores Univ, Fac Engn & Technol, Peter Jost Enterprise Ctr, Low Carbon Eco Innovatory Project, Byrom St, Liverpool L3 3AF, Merseyside, England;

    Liverpool John Moores Univ, Fac Engn & Technol, Sch Built Environm, Henry Cotton Bldg,Byrom St,15-21 Webster St, Liverpool L3 2ET, Merseyside, England;

    Radwraps Ltd, Birkdale Business Ctr 16, Weld Rd, Southport, Qld PR8 2DT, Australia;

    Liverpool John Moores Univ, Fac Engn & Technol, Byrom St, Liverpool L3 3AF, Merseyside, England;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Convection; Radiator; Radiation; Radwraps; Heat transfer; Wooden cover;

    机译：对流;散热器;辐射;包装纸;传热;木盖;

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