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Quantifying the benefits of a building retrofit using an integrated system approach: A case study

机译:使用集成系统方法量化建筑物改造的收益:一个案例研究

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Building retrofits provide a large opportunity to significantly reduce energy consumption in the buildings sector. Traditional building retrofits focus on equipment upgrades, often at the end of equipment life or failure, and result in replacement with marginally improved similar technology and limited energy savings. The Integrated System (IS) retrofit approach enables much greater energy savings by leveraging interactive effects between end use systems, enabling downsized or lower energy technologies. This paper presents a case study in Hawaii quantifying the benefits of an IS retrofit approach compared to two traditional retrofit approaches: a Standard Practice of upgrading equipment to meet minimum code requirements, and an Improved Practice of upgrading equipment to a higher efficiency. The IS approach showed an energy savings of 84% over existing building energy use, much higher than the traditional approaches of 13% and 33%. The IS retrofit also demonstrated the greatest energy cost savings potential. While the degree of savings realized from the IS approach will vary by building and climate, these findings indicate that savings on the order of 50% and greater are not possible without an IS approach. It is therefore recommended that the IS approach be universally adopted to achieve deep energy savings. (C) 2017 Elsevier B.V. All rights reserved.
机译:建筑改造为大幅降低建筑行业的能耗提供了很大的机会。传统的建筑物翻新通常在设备寿命终止或出现故障时将重点放在设备升级上,并导致以类似技术的改进和有限的节能来替代设备。集成系统(IS)改造方法通过利用最终用户系统之间的交互效应,实现了更大的能源节约,从而实现了尺寸缩小或能耗更低的技术。本文介绍了夏威夷的一个案例研究,与两个传统的改造方法相比,量化了IS改造方法的好处:一种标准的设备升级实践,以满足最低代码要求;另一种改进的设备升级实践,以提高效率。 IS方法显示比现有建筑物能源使用节省84%的能源,远高于传统方法的13%和33%。 IS改造也显示出最大的节能潜力。尽管通过IS方法实现的节省程度会随建筑物和气候的变化而变化,但这些发现表明,如果没有IS方法,则无法实现约50%或更高的节省。因此,建议普遍采用IS方法以节省大量能源。 (C)2017 Elsevier B.V.保留所有权利。

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