摘要
对3个气候区域4个城市住宅建筑计算采用XPS保温最优保温厚度,20年生命周期节省经济成本和保温回收期。分析现值因子和采暖度日数对保温效果的影响。结果表明,供暖热源种类和气候因素对最优保温厚度影响作用较大。基于采暖度日数法计算得到4种能源的最优保温厚度,由薄到厚依次为:天然气,煤炭,电,液化石油气。随着能源种类和气候区域的变化,最优保温厚度3.3~17.4 cm,生命周期节省经济成本244.1~517.9元/m2,保温投资回收期2.7~1.3年。最优保温厚度与生命周期节省经济成本方面,二次能源要高于一次能源。
The optimum insulation thickness of the residential building for four cities from three climate zones,life cycle savings over a lifetime of20years and payback periods were calculated with XPS as insulation material.The effect of the present value factor and the degree days of heating period on the insulation was analyzed.The results demonstrate that,the type of heat source and the climatic factors have a great effect on the optimum insulation thickness.The optimum insulation thickness calculated by degree days of heating period increases in the order of natural gas,coal,electricity,liquefied petroleum gas.The optimum insulation thickness varies between3.3cm and17.4cm,life cycle savings vary between244.1￥/m2and517.9￥/m2,and payback periods vary between2.7years and1.3years depending on the type of energy and climatic zones.The secondary energy is higher than primary energy with respect to the optimum insulation thickness and life cycle savings.
作者
刘恩海
王长忠
潘嘉信
房爱民
LIU Enhai;WANG Changzhong;PAN Jiaxin;Fang Aimin(School of Energy and Environment, Zhongyuan University of Technology;Zhengzhou Industry and Information Technology Commission Energy Conservation and Test Center;Henan Engineering Design Consultants of CSCEC Co., Ltd.;School of Energy and Power Engineering, Nanjing University of Science and Technology)
出处
《建筑热能通风空调》
2017年第11期70-73,共4页
Building Energy & Environment
基金
河南省高等学校重点科研项目(编号18B210016)
关键词
能源种类
气候区域
采暖度日数
最优保温厚度
energy type
climatic zone
degree days of heating period
optimum insulation thickness
