[1] Wang Feng, Liang Caihua, Zhang Xiaosong,. Experimental study and energy saving analysisof a novel radiant ceiling heating system [J]. Journal of Southeast University (English Edition), 2015, 31 (1): 118-123. [doi:10.3969/j.issn.1003-7985.2015.01.020]
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Experimental study and energy saving analysisof a novel radiant ceiling heating system(
)
一种新型辐射吊顶采暖系统的实验研究与节能分析
)Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]
- Volumn:
- 31
- Issue:
- 2015 1
- Page:
- 118-123
- Research Field:
- Energy and Power Engineering
- Publishing date:
- 2015-03-30
Info
- Title:
- Experimental study and energy saving analysisof a novel radiant ceiling heating system
- 一种新型辐射吊顶采暖系统的实验研究与节能分析
- Author(s):
- Wang Feng; Liang Caihua; Zhang Xiaosong
- School of Energy and Environment, Southeast University, Nanjing 210096, China
- Keywords:
- radiant heating system; capillary tube; heating performance; energy saving; exergy efficiency
- PACS:
- TU831.6
- DOI:
- 10.3969/j.issn.1003-7985.2015.01.020
- Abstract:
- In order to have an in-depth understanding of the metal ceiling radiant panel with capillary tubes, a radiant ceiling heating system is constructed to study the actual heating performance and thermal comfort by experiments. In addition, the energy saving potential of the novel heating system is discussed in terms of the COP(coefficient of performance)of the ground source heat pump and the exergy efficiency of the radiant terminal. The results indicate that the heating system shows high thermal stability and thermal comfort. When the system reaches a stable condition, the radiant heat transfer accounts for 62.7% of the total heat transfer, and the total heat transfer can meet the heating demands of most buildings. Compared to a radiant floor heating system, it offers advantages in a shorter preheating time, a lower supply water temperature and a stronger heating capability. The COP of the ground source heat pump is increased greatly when the supply water temperature is 28 to 33 ℃, and the exergy efficiency of the metal ceiling with capillary tubes is 1.6 times that of the radiant floor when the reference temperature is 5 ℃. The novel radiant ceiling heating system shows a tremendous energy saving potential.
- 为研究毛细管-金属板吊顶的采暖特性和节能潜力, 构建了毛细管-金属板辐射吊顶采暖系统, 实验分析了系统的实际采暖性能和热舒适性, 从地源热泵的COP和末端设备的效率探讨了系统的节能潜力.结果表明, 该采暖系统具有良好的热稳定性和热舒适性.当系统达到稳定状态时, 辐射传热占总传热量的62.7%, 并且总传热量可以满足大多数建筑的采暖需求.与地板辐射供暖系统相比, 毛细管-金属板辐射吊顶采暖系统具有预热时间短、供水温度低和采暖能力强的优势.当供水温度为28~33 ℃时, 地源热泵的COP显著提高.当基准温度为5 ℃时, 毛细管金属板辐射吊顶的效率是辐射地板的1.6倍.该新型辐射采暖系统显示出较大的节能潜力.
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Memo
- Memo:
-
Biographies: Wang Feng(1989—), male, graduate; Liang Caihua(corresponding author), male, doctor, professor, caihualiang@163.com.
Foundation items: The National Natural Science Foundation of China(No.51106023), the National Key Technology R&D Program during the 12th Five-Year Plan Period(No.2011BAJ03B14).
Citation: Wang Feng, Liang Caihua, Zhang Xiaosong. Experimental study and energy saving analysis of a novel radiant ceiling heating system[J].Journal of Southeast University(English Edition), 2015, 31(1):118-123.[doi:10.3969/j.issn.1003-7985.2015.01.020]