Building Energy Consumption Analysis, Energy Saving Measurements and Verification by Applying HAP Software
Building Energy Consumption Analysis, Energy Saving Measurements and Verification by Applying HAP Software
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应用HAP软件进行建筑能耗分析、节能测量和验证
DOI：
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发表时间：
2017
影响因子：
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通讯作者：
Z. Anwar
中科院分区：
文献类型：
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作者：
Tauseef Aized;S. Mehmood;Z. Anwar
巴基斯坦建筑部门的能源消耗几乎占其总能源使用量的30%[1]，并且在国内和商业部门分别以4.7%和2.5%的年增长率递增。目前巴基斯坦面临严重的能源危机，这对该国的经济增长产生了不利影响。巴基斯坦的地理位置（北纬24° - 35°之间）表明该国全年都处于阳光充足和炎热的气候中。在现有建筑围护结构中使用现代节能材料有助于降低建筑的能源需求。在这项研究中，研究工作重点是确定现有建筑（位于拉合尔）当前形式和改造后的能源消耗模式。使用了一个计算机程序（逐时分析程序HAP）来模拟实际运行条件，估算了建筑物的现有冷负荷，并根据其节能潜力对可能的改造措施进行了测试。窗户尺寸、双层玻璃、窗户朝向、建筑围护结构朝向、窗框之间的间距、窗框材料以及窗户遮阳的使用等重要参数被视为关键决策变量，对这些参数进行模拟以研究它们对建筑能源需求的影响。本研究中呈现的结果表明，对现有建筑进行轻微改造就可以显著节约能源。在这项研究中，通过应用不同的改造技术节约了28.6%的能源。
Energy consumption in building sector in Pakistan is almost 30 % [1] of its total energy use and it is increasing with annual growth rate of 4.7 % and 2.5 % in domestic and commercial sector respectively. Currently there is severe energy crises in Pakistan and this has adversely effected economical growth of the country. The geographical orientation of Pakistan (latitude between 24N - 35N) explains that the country remains in sunny and hot climate throughout the year. Utilization of modern energy efficient materials in existing building envelopes can help in reduction of building energy demands. In this study research effort focuses on identification of energy consumption pattern for an existing building (Lahore based) in its current and retrofitted form. A computer program (Hourly Analysis Program HAP) has been used to simulate actual operating conditions, existing cooling load of the building was estimated and possible retrofitting measures were tested in terms of their energy saving potential. Important parameters like window size, double glazing, windows orientation, and building envelop orientation, space between window frames, window frame materials, and use of shade on windows, are considered as key decision variables, these are simulated to study their effect on building energy demands. Results presented in this study suggests that significant energy saving can be obtained with slight modification in the existing building. In this study 28.6 % energy was saved by applying different retrofitting techniques.