[1] Gao Zhihong, Liu Xiaohua, Jiang Yi,. Cooling performance analysis of radiant panel at different positions [J]. Journal of Southeast University (English Edition), 2010, 26 (2): 364-367. [doi:10.3969/j.issn.1003-7985.2010.02.049]

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

Volumn:

26

Issue:

2010 2

Page:

364-367

Research Field:

Energy and Power Engineering

Publishing date:

2010-06-30

Info

Title:

Cooling performance analysis of radiant panel at different positions

Author(s):

Gao Zhihong;  Liu Xiaohua;  Jiang Yi

School of Architecture, Tsinghua University, Beijing 100084, China

Keywords:

radiant panel;  panel position;  cooling capacity

PACS:

TU831

DOI:

10.3969/j.issn.1003-7985.2010.02.049

Abstract:

The influence of the panel position on the cooling performance of a radiant panel is analyzed.The coupled simulation of convection and radiation is set up by a computational fluid dynamics(CFD)method.The simulations with different panel positions and different indoor heat sources are used to calculate the cooling capacity of the radiant panel and the indoor thermal environment.The simulation results are in good agreement with the experimental results.The results show that when the indoor heat source temperature is low, the convective heat flux is the main influence factor of the cooling capacity and the radiant panel should be placed on the wall or on the ceiling.Otherwise, when the indoor heat source temperature is high, the radiation heat flux is the main factor and the radiant panel should be placed as near to the heat sources as possible.

References:

[1] Bean R, Olesen W, Kim W.History of radiant heating and cooling systems [J].ASHRAE Journal, 2010, 52(2): 50-55.
[2] Imanari T, Omori T, Bogaki K.Thermal comfort and energy consumption of the radiant ceiling panel system: comparison with the conventional all-air system [J].Energy and Buildings, 1999, 30(2): 167-175.
[3] Kim T, Kato S, Murakami S, et al.Study on indoor thermal environment of office space controlled by radiant panel system using field measurement and numerical simulation [J].Building and Environment, 2005, 40(3): 301-310.
[4] Kim T, Kato S, Murakami S.Indoor cooling/heating load analysis based on coupled simulation of convection, radiation and HVAC control [J].Building and Environment, 2001, 36(7): 901-908.
[5] Wang S, Morimoto M, Soeda H, et al.Evaluating the low exergy of chilled water in a radiant cooling system [J].Energy and Buildings, 2008, 40(10): 1856-1865.

Memo

Memo:

Biographies: Gao Zhihong(1984—), female, graduate;Jiang Yi(corresponding author), male, doctor, professor, jiangyi@tsinghua.edu.cn.
Foundation item: The National Natural Science Foundation of China(No.50778094).
Citation: Gao Zhihong, Liu Xiaohua, Jiang Yi.Cooling performance analysis of radiant panel at different positions[J].Journal of Southeast University(English Edition), 2010, 26(2):364-357.

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