Effects of Solar Absorption Coefficient of External Wall on Building Energy Consumption

The principle concern of this paper is to determine the impact of solar absorption coefficient of external wall on building energy consumption. Simulations were carried out on a typical residential building by using the simulation Toolkit DeST-h. Results show that reducing solar absorption coefficient leads to a great reduction in building energy consumption and thus light-colored materials are suitable.

Authors:

• Jian Yao
• Chengwen Yan

Keywords:

• Solar absorption coefficient
• External wall
• Buildingenergy consumption.

References:

[1] Y. Wu, "China Building Energy Efficiency: Current Status, Issues, and
Policy Recommendations," China Ministry of Construction, 2003.
[2] N. Zhou, "Energy Use in Commercial Building in China: Current
Situation and Future Scenarios," 8th ECEEE Summer Study, Lawrence
Berkeley National Laboratory, 2007.
[3] D.G. Fridley, N. Zheng, N. Zhou, "Estimating Total Energy Consumption
and Emissions of China-s Commercial and Office Buildings,"
LBNL-248E, Lawrence Berkeley National Laboratory, 2008.
[4] Zhou Yan, Ding Yong and Yao Jian, "Preferable Rebuilding Energy
Efficiency Measures of Existing Residential Building in Ningbo,"
Journal of Ningbo University(Natural science & engineering edition), vol.
22 pp. 285-287, 2009.
[5] Yao, J. and J. Xu, "Effects of different shading devices on building energy
saving in hot summer and cold winter zone," 2010 International
Conference on Mechanic Automation and Control Engineering, Wuhan,
China 2010, pp. 5017-5020.
[6] Florides GA, Kalogirou SA, Tassou SA, Wrobel LC, "Modeling of the
modern houses of Cyprus and energy consumption analysis," Energy, vol.
25, pp. 915-937, 2000.
[7] Yao Jian and Yuan Zheng, "Study on Residential Buildings with Energy
Saving by 65% in Ningbo". Journal of Ningbo University(Natural science
& engineering edition), vol. 23, pp. 84-87, 2010.
[8] China Architecture and Building Press, The People-s Republic of China
National Standard JGJ 134-2001, Design standard for energy efficiecy of
residential buildings in hot summer and warm winter zone, Beijing, 2001.