COMPARISON OF GREEN HOME ENERGY PERFORMANCE BETWEEN SIMULATION AND OBSERVATION: A CASE OF VIRGINIA, UNITED STATES

COMPARISON OF GREEN HOME ENERGY PERFORMANCE BETWEEN SIMULATION AND OBSERVATION: A CASE OF VIRGINIA, UNITED STATES
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模拟与观测的绿色家庭能源绩效比较:以美国弗吉尼亚州为例

DOI:
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发表时间:
2018
期刊:
Journal of Green Building, College Publishing, USA
影响因子:
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通讯作者:
Yunjeong Mo
Yunjeong Mo
中科院分区:
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文献类型:
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作者:
A. McCoy;Dong;T. Ladipo;P. Agee;Yunjeong Mo

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美国的长期目标是在2010年的消费水平基础上减少50%的建筑物能源使用。家庭能源效率通常通过实验室实验和计算机模拟来测量。因此,几乎没有可量化的证据表明,在绿色建筑标准的更大背景下,节能住宅可以达到的程度。本研究的目的是通过比较现实世界的观察和能源建模的能源使用,确定实际的家庭能源性能作为绿色建筑技术的影响。结果表明,每单位能耗显著降低43.7%或每平方英尺能耗显著降低43.4%(即,0.093平方米)和每单位628.4美元或每平方英尺0.80美元的大量财务节省(即,每平方米8.6美元)。储蓄占家庭年收入中位数的2%,或美国家庭能源成本支出的46%。研究结果还表明,建筑类型是一个重要因素,但建筑技术并不是影响家庭能源效率的唯一因素。这些发现在三个方面对知识体系做出了贡献:(1)模拟的能源使用量高于实际能源使用量;(2)通过模拟工具进行的能源建模对于新建筑特别准确;(3)由于居住者行为的变化很大,能源建模,特别是对于现有建筑,并不准确。
The United States has a long-term goal to reduce 50% of energy usage in buildings based on 2010 consumption levels. Home energy efficiency is often measured by laboratory experiments and computational simulation. Thus, there is little to no quantifiable evidence showing the extent of energy efficiency homes can achieve within the larger context of green building standards. The objective of this research is to identify actual home energy performance as an effect of green building technologies by comparing energy use from real-world observations and energy modeling. Results indicate a significant reduction of energy consumption at 43.7% per unit or 43.4% per square foot (i.e., 0.093 m2) and substantial financial savings at $628.4 per unit or $0.80 per square foot (i.e., $8.6 per m2) annually. Savings account for 2% of median annual household income or 46% of energy cost expenditures for an American home. Results also identify the construction type as a significant factor, yet building technology is not the only factor influencing a home's energy efficiency. The findings contribute to the body of knowledge in three aspects: (1) simulated energy usage is higher than actual energy usage; (2) energy modeling via simulation tools is particularly accurate for new construction; and (3) energy modeling, especially for existing buildings, is not accurate due to largely varying occupant behaviors.
影响国内能源信息认知的因素:内容、来源和过程
DOI: 10.1016/j.enpol.2013.10.038
发表时间: 2014
期刊: Energy Policy
影响因子: 9
作者:
Simcock N
通讯作者: Simcock N