Applied Mechanics and Materials Vols. 193-194 (2012) pp 1165-1173 © (2012) Trans Tech Publications, Switzerland doi:10.4028/www.scientific.net/AMM.193-194.1165
Lighting Environment Study on Rural Residential Buildings in Weihe Plain of China Xi LIAO1, a , Jing LUO1,b , Yuan JIANG 1, c, Yiping ZHU 1, d and Wenbo WU1, e 1
School of Architecture, Xi’an University of Architecture and Technology, Xi’an, China,710055 a
yinweiai527lx@hotmail.com, bkaka930@126.com, jiangyuan8921@gmail.comc, zhuyiping114@gmail.com d,413477743@qq.come
Key words: Weihe Plain, Rural Residential Building, Lighting Environment, Energy Saving
Abstract: As an important index reflecting residential quality, the lighting environment level of residential buildings exerts tremendous influence on both physical and psychological health of residents. Taking a typical rural house in Weihe Plain as example, with indoor lighting environment test, lighting habits of the resident and Ecotect software, the paper studies indoor lighting environment quality of rural residential buildings in Weihe Plain and analyzes the influence of residential buildings' design on lighting environment. The result shows that rural residents in Weihe Plain usually don’t attach due importance to the lighting environment quality of living space, and the design of indoor space goes against effective utilization of natural light. Thus, the paper eventually brings forward a method to consummate the lighting environment of rural residential buildings and explores the buildings’ potential of saving energy by making use of natural light. 1. Introduction At present, urban and rural construction area of China has exceeded 40 billion m2, and annual energy consumption of buildings amounts to 376 million tce, accounting for 27.60% of total energy consumption of the whole society. Rural residential buildings constitutes above 60% of total residential area, i.e. about 25 billion m2, and annual power consumption of rural residential buildings is more than 100 billion kW•h[1]. Hence, energy saving of rural residential buildings is of vital importance to create an economized society. According to regulations of daylighting coefficient standard value of residential buildings in Standard for Daylighting Design of Buildings[annotate], daylighting standards of residential buildings should comply with the minimum daylighting coefficient in Table 3.2.1 and the area ratio of window to floor in Table 5.0.1 (Ac/Ad), i.e. the minimum side daylighting coefficient of bed rooms, dining rooms and kitchens is 1%, the area ratio of window to floor (Ac/Ad)is 1/7, which will be used in following comparison and analysis. Pursuant to the standards, the daylighting coefficient standard value of residential buildings and the area ratio of window to floor are shown in Table 1 and Table 2.
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