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Cost-optimal insulation thickness in dry and mesothermal climates: Existing models and their improvement

机译:干燥和中温气候中成本最优的保温层厚度:现有模型及其改进

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摘要

The establishment of a methodology for the calculation of the cost-optimal insulation thickness of building elements has been a subject of interest for some years. Many studies have been conducted on the ideal insulation thickness and been based on specific assumptions and approaches. The introduction of the Energy Performance of Buildings Directive recast (2010/31/EC) in May 2010, leads to the compul-sory implementation of a specific methodology for this purpose by all European Union member states (Article 5, EPBD recast). Therefore, a study on this subject was conducted, to evaluate the results of pre- vious studies and the strengths and weaknesses of the previous methodologies and to determine how the methodologies should be further developed to provide more reliable results. Additionally, a derived model was validated by a parametric study that examined all possible aspects that could potentially affect the end results. The minimum requirements of the insulation thickness for three selected European cities were also compared to the results of the proposed model applied to these cities. The results show that the proposed model provides a better compromise between simplicity and accuracy, leading at the same time to significantly lower U-values and therefore to improved energy efficiency of the buildings.
机译:多年来,建立计算建筑构件成本最佳隔热厚度的方法一直是人们关注的主题。已经针对理想的绝缘厚度进行了许多研究,并基于特定的假设和方法。 2010年5月引入了《建筑能源性能指令》重铸(2010/31 / EC),导致欧盟所有成员国为此目的强制实施特定方法(第5条,EPBD重铸)。因此,对该主题进行了研究,以评估先前研究的结果以及先前方法的优缺点,并确定应如何进一步发展方法以提供更可靠的结果。此外,通过参数研究验证了派生模型,该研究检查了可能影响最终结果的所有可能方面。还比较了三个选定的欧洲城市的隔热厚度的最低要求,并将其与提议的模型应用于这些城市的结果进行了比较。结果表明,提出的模型在简单性和准确性之间提供了更好的折衷,同时导致显着降低U值,从而提高了建筑物的能源效率。

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