[1] Kong Xiangqiang, Li Ying, Hu Songtao,. Experimental study of low-temperature electricalradiant floor heating system [J]. Journal of Southeast University (English Edition), 2010, 26 (2): 287-291. [doi:10.3969/j.issn.1003-7985.2010.02.032]

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Experimental study of low-temperature electricalradiant floor heating system()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

26

Issue:

2010 2

Page:

287-291

Research Field:

Energy and Power Engineering

Publishing date:

2010-06-30

Info

Title:

Experimental study of low-temperature electricalradiant floor heating system

Author(s):

Kong Xiangqiang¹;  Li Ying¹;  Hu Songtao²

¹School of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266510, China
²School of Environmental and Municipal Engineering, Qingdao Technological University, Qingdao 266033, China

Keywords:

electrical radiant floor heating;  floor structure;  cable distance;  thermal performance

PACS:

TU832

DOI:

10.3969/j.issn.1003-7985.2010.02.032

Abstract:

To evaluate the thermal performance of a low-temperature electrical radiant floor heating system, an experimental facility equipped with a constant temperature chamber and different specimen floors is designed and built.The heating cable is installed in the floor slab with a unit-rated power of 30 W/m.Twenty-four different schemes are worked out and tested, which include three kinds of composite floor structures and eight kinds of cable distances.The cable distances are 30, 40, 50, 60, 80, 100, 130, 150 mm.The main affective factors of the thermal performance and their influencing regularity are discussed.The experimental results show that the system has good stability and reliability, and the ratio of the radiation heat-transfer rate to the gross heat-transfer rate is greater than 50%.When the floor structure and the cable distance are fixed, the gross heat-transfer rate of the upper floor surface has a maximum value at an optimal cable distance.Under the experimental conditions in this paper, the optimal cable distance is 50 mm.

References:

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[2] Olesen B W.Radiant floor heating in theory and practice [J].ASHRAE Journal, 2002, 44(7):19-26.
[3] Liu Yanfeng, Liu Jiaping.Measurement and study on the heat transfer of embedded heat floor [J].Journal of Xi’an University of Architecture and Technology, 2004, 36(2):176-178.(in Chinese)
[4] Sattari S, Farhanieh B.A parametric study on radiant floor heating system performance [J].Renewable Energy, 2006, 31(10):1617-1626.
[5] Zhao Wei, Zhang Yufeng, Deng Na, et al.Experimental investigation on the performance of solar-thermosyphon embedded radiant floor heating system [J].Acta Energiae Solaris Sinica, 2008, 29(6):637-643.(in Chinese)
[6] Chen Haibo, Huang Haizhen, Lü Quantao.Calculation of radiant heat from low-temperature hot water floor [J].Journal of Jinlin University:Engineering and Technology Edition, 2005, 35(2):136-140.(in Chinese)
[7] Zhang Dongliang, Wang Zijie, Zhang Xu.Thermal performance of dye-type floor panel heating system [J].Heating Ventilating & Air Conditioning, 2009, 39(8):51-56.(in Chinese)
[8] Lin Kunping, Zhang Yinping, Xu Xu, et al.Experimental study of under-floor electric heating system with shape-stabilized PCM plates [J].Energy and Buildings, 2005, 37(3):215-220.

Memo

Memo:

Biography: Kong Xiangqiang(1976—), male, doctor, associate professor, kxqiangly@126.com.
Citation: Kong Xiangqiang, Li Ying, Hu Songtao.Experimental study of low-temperature electrical radiant floor heating system[J].Journal of Southeast University(English Edition), 2010, 26(2):287-291.

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