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Evaluation of heating energy consumption patterns in the residential building sector using stepwise selection and multivariate analysis

机译：使用逐步选择和多元分析评估住宅建筑部门的供暖能耗模式

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摘要

The aim of the present study is to evaluate historical consumption of natural gas for heating, between 1996 and 2009, in multifamily buildings, using stepwise selection and multivariate analysis. 72 apartments of the capital of the province of La Pampa, Argentina, were studied. Some apartments were previously monitored, thus information about their thermal and energy behaviour is available. There are many variables that could influence the winter energy and annual consumption of the apartments. Based on the characteristics of buildings in Argentina and on previous research, ten variables were selected, from which the most representative ones were selected by using a stepwise method. Then, the apartments were grouped by applying clustering techniques, and the centroids for each cluster were determined by averaging the variables that describe the cluster. It was shown that the apartments monitored in previous works, having good thermal behaviour, are close to the centroids of the group to which they belong and could be taken as references of their group. The annual heating energy consumption average for the sample is 118.2 kWh/m~2/y. However, a significant percentage of apartments showed energy consumptions lower than 70kWh/m~2/y, which is a widely accepted value to define a building as a "low-energy" one. Thus, some apartments could be classified as "low-energy", but for the actual Argentinean Norm they do not qualify even for the worst energy level label. The results make evident a strong disagreement between the Argentinean standard label and the real energy consumption for heating. This fact should be considered as fundamental in order to review the Norm.
机译：本研究的目的是使用逐步选择和多元分析方法来评估1996年至2009年间多户住宅建筑中供热天然气的历史消费量。研究了阿根廷拉潘帕省首府的72套公寓。某些公寓先前已进行过监视，因此可以获得有关其热和能量行为的信息。有很多变量可能会影响公寓的冬季能源和年消耗量。根据阿根廷建筑的特点和先前的研究，选择了十个变量，然后使用逐步方法从中选择最具代表性的变量。然后，通过应用聚类技术对公寓进行分组，并通过平均描述聚类的变量来确定每个聚类的质心。结果表明，在以前的工作中监视的公寓具有良好的热性能，靠近它们所属组的质心，可以作为其组的参考。样品的年平均加热能耗为118.2 kWh / m〜2 / y。但是，很大一部分公寓的能耗低于70kWh / m〜2 / y，这是将建筑物定义为“低能耗”建筑的广泛接受的价值。因此，有些公寓可以归类为“低能耗”，但对于实际的阿根廷规范，即使达到最差的能耗水平，它们也没有资格。结果表明，阿根廷标准标签与供暖的实际能耗之间存在很大分歧。为了审查规范，应将这一事实视为根本。

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  • 来源
    《Energy and Buildings》 |2013年第11期|571-581|共11页
  • 作者

    C. Filippin; F. Ricard; S. Flores Larsen;

  • 作者单位

    CONICET, Avenida Spinetto 785,6300 Santa Rosa, La Pampa, Argentina;

    CONICET, Avenida Spinetto 785,6300 Santa Rosa, La Pampa, Argentina;

    INENCO - Institute de Investigacions en Energias No Convencionales, Universidad National de Salta - CON1CET, Avenida Bolivia 5150, CP 4400 Salta Capital, Argentina;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Heating energy; Multifamily buildings; Energy-classes; Efficiency label; Energy saving;

    机译：热能;多户住宅;能源等级;效率标签;节约能源;

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