Infrared Screening of Residential Buildings for Energy Audit Purposes: Results of a Field Test
Infrared Screening of Residential Buildings for Energy Audit Purposes: Results of a Field Test
复制标题
用于能源审计目的的住宅建筑红外筛查：现场测试结果
DOI：
--
复制
发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Angela Panza
中科院分区：
文献类型：
--
作者：
G. Dall’O’;L. Sarto;Angela Panza
在欧盟，建筑业占总能耗的40%左右。现有的建筑物效率低下，可以而且确实必须进行改造，以解决这一问题。欧洲战略的实际实施需要通过能源审计技术了解现有建筑物的能源性能。热成像技术在能源领域的应用非常广泛，因为通过这种非侵入性的调查，并通过对红外图像的正确解释，可以突出建筑物和相关设施的效率低下。本文显示和讨论的红外线审计活动的结果14个现有的建筑物位于米兰省（意大利）在不同的施工期间，因此，由不同的建筑技术。通过所研究建筑物的不透明墙壁的热成像以间接方式获得的U值与实际已知值进行了比较，以验证该方法的可靠性和可能的误差范围。研究表明，这种方法的应用是足够可靠的建筑物类别是实心结构建筑物，在意大利最普遍，而在外墙隔热的建筑物的情况下，偏差的百分比非常高。
In the European Union (EU), the building sector is responsible for approximately 40% of total energy consumption. The existing building stock is inefficient and can, and indeed must be retrofitted to address this issue. The practical implementation of the European strategies requires knowledge of the energy performance of existing buildings through energy audit techniques. Application of thermography in the fields of energy are very widespread, since, through such a non-invasive investigation, and through correct interpretation of infrared images, it is possible to highlight inefficiencies in buildings and related facilities. The paper shows and discusses the results of an infrared audit campaign on 14 existing buildings located in Milan Province (Italy) made in different construction periods and characterised, therefore, by different building technologies. The U-values obtained in an indirect way through the thermography of the opaque walls of the buildings investigated, were compared with the actual known values in order to verify the reliability of the method and the possible margin of error. The study indicated that the category of buildings in which the application of this method is sufficiently reliable is that of solid-mass structure buildings, the most widespread in Italy, whereas in the case of buildings whose external walls are insulated, the percentage of deviation is very high.