Experimental Study of Energy Saving Effect of Building Envelope in Winter

Abstract:

This paper presents an experimental study on the energy saving effect of building envelope in winter in Chongqing city. The basic cubicle was adopted for comparison. Experiments show that when energy saving measurements are applied in the external walls and windows, energy saving cubicle has an average energy efficiency rate of 32.68%, 7.68% over the target value of the standard. The indoor temperature of the energy saving cubicle is higher than the basic one’s. The internal surface temperature and the temperature difference between the exterior and interior of the insulation wall of the energy saving cubicle are both higher than that of the basic cubicle, the mean value is 1.28°C and 1.90°C respectively. And the temperature difference of the insulation glass is higher than that of the single glass, with a maximum value of 6.32°C. Daily simulation of the two cubicles is addressed by VisualDOE-4.0, the mean error between simulation and experiment is 16.16%, illustrating the effectivity and the accurateness of the VisualDOE-4.0.

• Periodical: Applied Mechanics and Materials (Volumes 121-126)
• Pages: 2741-2747
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.121-126.2741
• Online since: October 2011
• Authors: Hou Hua Wang, Tao Zhang, Qiu Lian Xiao
• Keywords: Energy Efficiency, Energy-Saving Buildings, Experiment, Thermal Performance

References

[1] Houhua Wang, Yanyan Zhuang, Hongwei Wu: Journal of Tongji University, Vol. 38(2010), p.1641.

[2] Houhua Wang, Yanyan Zhuang, Hongwei Wu: Journal of Central South University of Technology, S1(2009), p.165.

[3] L.F. Cabeza, A. Castell, M. Medrano, I. Martorell, G. Perez, I. Fernandez: Energy and Building, Vol. 42(2005), p.630.

[4] E.A. Eumorfopoulou, K.J. Kontoleon: Building and Environment, Vol. 44(2009), p.1024.

[5] Qiulian Xiao: Study on Building Envelope Energy Simulation and Experimental in Yangtze River Basin, Chongqing University, Chongqing (2010) Master Thesis (in Chinese).

[6] The Professional Standard of People's Republic of China: JGJ134-2001 Building Standard for Energy-efficiency of Residential Buildings in Hot Summer and Cold Winter Zone, China (2001).

[7] Y.P. Zhang, G.B. Zhou, K.P. Lin: Building and Environment, Vol. 42(2007), p.2197.

[8] Yiqun Pan, Zhizhong Huang, Gang Wu: Heating Ventilating & Air Condition, Vol. 37(2007), p.26.

[9] Houhua Wang, Chunyong Huang: Journal of Chongqing University, Vol. 32(2009), p.83.

[10] Yaoqing Lu, in: Practical Handbook of Heating and Air-conditioning (Chinese Architecture Industry Press, 2nd edn, Beijing 2008 ), p.1464.