An approach to integrate energy efficiency upgrade into refurbishment design process, applied in two case-study buildings in Northern European climate

Konstantinou, Thaleia; Knaack, Ulrich

doi:10.1016/j.enbuild.2012.12.023

Cited by 65 publications

(36 citation statements)

References 7 publications

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“…This method has also been used e.g. by (Kavgic et al, 2013b), (Hemsath et al, 2015) (Samuelson et al, 2016) and (Konstantinou & Knaack, 2013) and (Petersen & Svendsen, 2010).…”

Section: Parametric Studymentioning

confidence: 99%

A systematic approach for major renovation of residential buildings

Liu

2017

Linköping Studies in Science and Technology. Dissertations

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In Sweden, buildings are responsible for about 40 % of total energy use and about 10 % of total CO 2 emissions. Today more than 60 % of existing Swedish residential buildings are over 40 years old and are in need of major renovation. In addition, 15 % of all multi-family buildings and 27 % of all single-family houses were built before 1945. The increased energy use and threat from CO 2 emissions of the building sector create a need for energy efficiency. The important role that renovation of residential buildings will play in reducing the total energy used by the Swedish building sector as well as in reducing primary energy use and CO 2 emissions on both the national and global levels has been the impetus for the studies included in this thesis.The aim of the current research is to develop a methodology from a system perspective which can be used to analyze the energy use, optimal life cycle cost (LCC), energy efficiency measure (EEM) package, indoor environment, CO 2 emissions, and primary energy use of a building or a community during major renovation. The developed methodology accomplished at three different levels, i.e. building level, cluster level and district level. The methodology considers both energy efficiency and economic viability during building renovation and will also play an important role in overall urban planning. The studied buildings include both nonlisted and listed residential buildings and the tools used include building energy simulation (BES), survey, technical measurements, LCC optimization and building categorization.The results show that the combination of BES, technical measurements and surveys provides a holistic approach for evaluation of energy use and indoor environment of the studied residential buildings. The results from the current study also show that the 2020 energy target, i.e., reduction of energy use by 20 %, for the building sector can be achieved by all the studied building types and that the total LCC of these buildings are below the cost-optimal point. In comparison, the 2050 energy target, i.e., reduction of energy use by 50 %, for the building sector may be achieved by the non-listed buildings, but when the constraints relevant to listed buildings are added the cost-optimality changes as some EEMs in direct conflict with the building's heritage value may not be implemented.The investigation of primary energy use and CO 2 emissions by the residential buildings show that the higher the energy saving, the lower the primary energy use becomes, and vice versa. With the same energy saving, the heating system with higher primary energy factor results in higher primary energy use. From a CO 2 emissions point of view, EEM packages proposed to help buildings connected to a CHP based district heating system, to reduce the energy use or LCC are not consistently effective. Since these EEM packages will reduce district heating demand, the electricity produced in the CHP plant will also decrease. When the biomass is considered a limited resource, measures such as investm...

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“…This method has also been used e.g. by (Kavgic et al, 2013b), (Hemsath et al, 2015) (Samuelson et al, 2016) and (Konstantinou & Knaack, 2013) and (Petersen & Svendsen, 2010).…”

Section: Parametric Studymentioning

confidence: 99%

A systematic approach for major renovation of residential buildings

Liu

2017

Linköping Studies in Science and Technology. Dissertations

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“…In par-. In parIn particular, ineffective decision making at the early design stage will lead significant impacts on time and cost of a project, and generates reworks (Basbagill et al, 2013;Konstantinoua and Knaack, 2013;Schlueter and Thesseling, 2009). Thus, in order to provide a reliable refurbishment solution to customers, diverse information regarding refurbishment measures should be communicated and coordinated amongst stakeholders from the early design stage.…”

Section: Viewpoint Of the Construction Sectormentioning

confidence: 99%

“…The amount of energy savings is considered too small to be worthy to invest, and households do not like the disruption during the refurbishment. References: Konstantinoua and Knaack, 2013;Davies and Osmani, 2011;Menassa, 2011;Owen, 2011;Thuvander et al, 2012;DECC, 2011;Energy Saving Trust, 2011.…”

Section: Viewpoint Of Clientsmentioning

confidence: 99%

BIM Feasibility Study For Housing Refurbishment Projects In The UK

Kim

Park

2013

OTMCJ

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Current existing UK housing stock is responsible for 27% of UK CO2 emission. Refurbishing this housing stock can contribute to the 80% CO2 reduction by 2050 as a UK government target. However, there are barriers to refurbish a house due to high initial cost and lack of knowledge and skills in construction sector. To accomplish the CO2 reduction target, BIM should be utilized because BIM is capable of coping with current barriers. Furthermore the UK government mandates public sector to adopt BIM for construction projects from 2016. Hence, this research aims to explore the feasibilities of BIM adoption for housing refurbishment. This research consists of a desk study, web-based questionnaires, and semi-structured interviews. The data search used mostly public statistics and government reports. The target for questionnaire survey was chosen from local authorities, architects and constructors, construction professional organizations, and BIM software developers as a focused group. The web-based questionnaire was comprised of 16 questions, and it was distributed to 100 construction professionals via email. The findings revealed that the BIM adoption for housing refurbishment projects is feasible and timely, although the clients' demand and BIM penetration in the housing sector is low. This research identified that the benefits of BIM should be understood by stakeholders to increase BIM awareness and demand. In addition, BIM education and financial supports were identified as the most critical steps for encouraging BIM adoption. Furthermore, the construction professionals are aware of the benefits of BIM whether they are engaged in BIM or not. Keywords Building InformationModelling ( o r g a n i z a t i o n , t e c h n o l o g y a n d m a n a g e m e n t i n c o n s t r u c t i o n · a n i n t e r n a t i o n a l j o u r n a l · 6(2)2013 766

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“…There were many attempts to find the most effective retrofit measures like EnergyPlus program tool [8], a multi-objective optimization model to assist stakeholders in the definition of intervention measures aimed at minimizing energy use in the building in a cost effective manner, while satisfying the occupant needs and requirements [9], the scalable methodology based on Bayesian calibration of calibrated normative models which can correctly evaluate energy retrofit options [10], the framework for handling the uncertainties associated with the prediction of energy savings in the retrofit analysis of a housing stock [11], and others [12][13][14][15][16][17][18].…”

Section: A Overview Of Related Researchmentioning

confidence: 99%

Energetic Refurbishment of Historic Brick Buildings: Problems and Opportunities

Zagorskas¹,

Paliulis²,

Burinskienė³

et al. 2013

Scientific Journal of Riga Technical University. Environmental and Climate Technologies

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-Building standards for energy effectiveness are increasing constantly and the market follows these changes by constructing new buildings in accordance with standards and refurbishment of the existing housing stock. Comprehensive trends in European construction market show tremendous increase in building retrofit works. It can be predicted that after the end of this decade, more than half of the construction works in European cities will be taking place in existing buildings, pushing the construction of new buildings to a less important role. Such a growth in building refurbishment works is creating a demand for suitable materials, retrofitting techniques and research. The differences between refurbishment of new-build projects and historical or valuable buildings are insufficiently recognized -mostly the buildings without further cultural preservation requirements are studied. This article covers the theme of refurbishment measures in historical buildings -the specific measures like inside insulation which are allowed due to the valuable façade or other heritage preservation requirements. An overview of other innovative methods for energy saving in existing buildings and their potential is given.

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An approach to integrate energy efficiency upgrade into refurbishment design process, applied in two case-study buildings in Northern European climate

Cited by 65 publications

References 7 publications

A systematic approach for major renovation of residential buildings

A systematic approach for major renovation of residential buildings

BIM Feasibility Study For Housing Refurbishment Projects In The UK

Energetic Refurbishment of Historic Brick Buildings: Problems and Opportunities

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