Experimental Research on the Parameter Optimization of a Radiant Floor Heating System with Reflective Modules

Abstract:

The combination of reflecting cavity and cover layer makes it possible for a reflective radiant floor heating system to be characterized by uniform temperature field and low energy consumption. In this paper, the temperature distribution of a reflecting radiant floor heating system in an experimental chamber was tested under different heating conditions by use of copper constantan thermocouple; the temperature distribution of indoor workspace and floor surface was researched when water temperature was at 30°C, 40°C and 50°C and water flow at 0.24m3/h, 0.34m3/h and 0.44m3/h respectively; the temperature distribution on the surface of floors with three different layout patterns was compared. The results prove that a floor equipped with cover layer has a uniform temperature distribution on its surface. When water temperature is at 40°C, and water flow at 0.34m3/h, indoor workspace temperature remains at 20°C, and floor temperature can be controlled between 23°C and 26°C, satisfying peoples daily need for thermal comfort.

• Periodical: Applied Mechanics and Materials (Volumes 353-356)
• Pages: 3114-3119
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.353-356.3114
• Online since: August 2013
• Authors: Jin Yu, Jiang Fa Feng
• Keywords: Cover Layer, Radiant Floor Heating, Reflecting Cavity, Temperature Field, Thermal Comfort

References

[1] Code for design of heating ventilation and air conditioning, GB50019-(2003).

[2] Wang Zijie. The Low Temperature Radiant Heating and Radiant Cooling [M] Beijing: China Machine Press, (2004).

[3] K.N. Rhee, S.R. Ryu, J.Y. Lee, The influence of water flow rate balancing on thermal performance in a radiant floor heating system, HB2006-Healthy Buildings: Creating a Healthy Indoor Environment for People, 2006: 173-176.

[4] Fontana. L, Thermal performance of radiant heating floors in furnished enclosed spaces, Source: Applied Thermal Engineering, 2011, 31(10): 1547-1555.

DOI: 10.1016/j.applthermaleng.2010.12.014

[5] Beghi. Alessandro, Cecchinato. Luca, Rampazzo. Mirco, Thermal and comfort control for radiant heating/cooling systems, Proceedings of the IEEE International Conference on Control Applications, 2011: 258-263.

DOI: 10.1109/cca.2011.6044398

[6] Bojic Milorad, Cvetkovic Dragan, Marjanovic Vesna, etc., Performances of low temperature radiant heating systems, Source: Energy and Buildings, 2013, 61: 233-238.

[7] Zhang Dan, Liu Huimin, Yin Zhifang. Numerical simulation on the temperature distribution and transferred heat of floor heating. Source: Advanced Materials Research, 2012, 347-353: 1132-1139.

DOI: 10.4028/www.scientific.net/amr.347-353.1132

[8] Zhao Haiqian, Wang Zhonghua, Zhang Lanshuang. Influence of covering layer on surface temperature of floor radiant heating system . Source: Applied Mechanics and Materials, 2012, 204-208: 4260-4263.

DOI: 10.4028/www.scientific.net/amm.204-208.4260

[9] Gao Pengcheng. Analog Study on the Supply and Return Water Temperature on the Properties of Radiant Floor Heating [D] Xi'an University of Architecture and Technology，(2010).

[10] Liu Shulin. The Development and Application of Assembled Reflecting Floor Heating System [D] Shenyang Jianzhu University, (2011).