A performance-based method for energy efficiency improvement of buildings
A performance-based method for energy efficiency improvement of buildings
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DOI：
10.1016/j.enconman.2010.12.007
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发表时间：
2011-04
影响因子：
10.4
通讯作者：
K. Chua;S. Chou
中科院分区：
文献类型：
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作者：
K. Chua;S. Chou
建筑能源标准可以控制建筑物过度使用能源，提高能源效率，减轻高能耗对环境的不利影响。本文的中心目标是开发预测热带气候下商业建筑的建筑热增益和冷却能耗的相关性。首先对能源性能指数进行修订，以获得一个新的性能指数，即商业建筑的能源性能指数。我们开发了新的相关性来研究通风率和建筑宽高比对建筑冷却能耗的影响。比较估算和模拟结果，我们证明了很好的一致性，即使是具有不同宽高比的建筑物。此外，还进行了一项研究，以调查天气状况对所制订的建筑物能源消耗估算方法的影响。我们采用design-day天气文件来提供简单、灵活和更易于使用的功能。设计日概念在为冷却能量估算方法提供关键输入方面至关重要，该方法与DOE-2.1E模拟结果非常吻合。我们相信这项研究的结果将有助建筑当局制订和完善严格的建筑能源标准，以达致更具能源效益的建筑。
Building energy standards provide control over excessive use of energy in buildings, promoting energy efficiency and mitigating detrimental environment impacts brought by high energy consumption. The central objective of this paper is to develop correlations that will predict building heat gains and cooling energy consumption for commercial buildings in tropical climates. The energy performance index OTTV was first revised to obtain a new performance index, ETTV for commercial buildings. We developed new correlations to investigate the impact ventilation rates and building aspect ratios had on building cooling energy consumption. Comparing estimated and simulated results, we demonstrated good agreement, even for buildings having different aspect ratios. A study was further conducted to investigate the impact of weather conditions on the developed methodology for estimating the energy consumption of buildings. We employed a design-day weather file to provide simplicity, flexibility and greater ease of use. The design day concept is pivotal in providing key inputs to the cooling energy-estimating methodology yielding good agreement with DOE-2.1E simulated results. We believe that the results presented in this study will benefit building authorities in their pursuit of developing and refining stringent building energy standards in order to realize better energy efficient buildings.