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Energy retrofit of an office building in Stockholm: energy performance analysis of the cooling system
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Building Service and Energy Systems.
2016 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Energieffektivisering av en kontorsbyggnad i Stockholm: utvärdering av kylsystems energiprestanda (Swedish)
Abstract [en]

The increasing attention towards energy efficiency issues has triggered an important process involving the renovation of existing buildings and, at the same time, the creation of recognized certifications assuring the quality of the projects. In line with this trend, the Sweco headquarters, an office building characterized by 24700 m2 of floor area and located in Stockholm, was totally retrofitted in 2012 and obtained the Gold rating after being assessed with the Miljöbyggnad certification procedure. The HVAC system was a key element of the retrofit project since one of the final aims was to combine high indoor environment standards with efficient system performances. However, even if the quality of the design is certified, it is possible that, under real operating conditions, complex systems behave differently from the expectations and adjustments are necessary to correct the emerged gap. To achieve this goal, it is essential to identify the points of weakness of the system by carrying out an energy performance analysis, which is the core of this project. In fact, after providing an overview of the building and the retrofit, this work focuses on the analysis of the cooling system installed in the Sweco building and proves the importance of adopting a step-by-step approach to the problem. Therefore, an increasing level of detail characterizes each step of the analysis, whose final aim is to highlight potential aspects to be improved and create a baseline to test possible solutions.

Place, publisher, year, edition, pages
2016. , 154 p.
Series
TRITA-IES, 2016:03
Keyword [en]
building retrofit, building performance, energy performance analysis, energy audit, ida ice, dynamic simulation
National Category
Building Technologies
Identifiers
URN: urn:nbn:se:kth:diva-190960OAI: oai:DiVA.org:kth-190960DiVA: diva2:953931
External cooperation
Sweco
Subject / course
Building Services Engineering and Energy
Educational program
Degree of Master - Civil and Architectural Engineering
Supervisors
Examiners
Projects
SIRen
Available from: 2016-08-25 Created: 2016-08-19 Last updated: 2016-08-25Bibliographically approved

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Pierpaolo Maggiore_Energy retrofit of an office building in Stockholm-energy performance analysis of the cooling system(8885 kB)19 downloads
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