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1 – 10 of 283Petra Eriksson, Vlatko Milić and Tor Brostrom
Energy use in buildings needs to be reduced to meet political goals; however, reducing energy use can conflict with heritage preservation objectives. The purpose of this paper is…
Abstract
Purpose
Energy use in buildings needs to be reduced to meet political goals; however, reducing energy use can conflict with heritage preservation objectives. The purpose of this paper is to demonstrate a method that combines quantitative and qualitative analyses of the potential of energy savings in an historic building stock. Specifically, this study examines how requirements of historic building preservation affect the energy saving potential on a building stock level.
Design/methodology/approach
Using the World Heritage Town of Visby, Sweden as a case study, this paper illustrates a step-by-step method as a basis for implementing energy savings techniques in an historic building stock. The method contains the following steps: categorisation of a building stock, definition of restriction levels for energy renovation scenarios and life cycle costs optimisation of energy measures in archetype buildings representing the building stock. Finally, this study analyses how different energy renovation strategies will impact heritage values and energy saving potentials for different categories of buildings.
Findings
The outcome of the study is twofold: first, the method has been tested and proven useful and second, the results from the application of the method have been used to formulate differentiated energy renovation strategies for the case study.
Originality/value
The study shows that it is possible to integrate techno-economic analysis with assessment of heritage values in a given building stock in order to facilitate a strategic discussion balancing policies and targets for energy savings with policies for the preservation of heritage values. The findings will contribute to sounder policy development and planning for historic building stocks.
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Omar Doukari, Mohamad Kassem, Enrico Scoditti, Rahim Aguejdad and David Greenwood
Buildings are among the biggest contributors to environmental impacts. To achieve energy-saving and decarbonisation objectives while also improving living conditions, it is…
Abstract
Purpose
Buildings are among the biggest contributors to environmental impacts. To achieve energy-saving and decarbonisation objectives while also improving living conditions, it is imperative to undertake large-scale renovations of existing buildings, which constitute the greater part of building stock and have relatively low energy efficiency. However, building renovation projects poses significant challenges owing to the absence of optimised tools and methods for planning and executing renovation works, coupled with the need for a high degree of interaction with occupants.
Design/methodology/approach
This paper describes the development of an automated process, based on building information modelling (BIM) and the principal component analysis method, for overcoming building renovation challenges. The process involves the assessment and simulation of renovation scenarios in terms of duration, cost, effort needed and disruptive potential. The proposed process was tested in three case studies; multi-residence apartment buildings comprising different construction components and systems, located in Greece, France and Denmark, on which six different renovation strategies were evaluated using sensitivity analysis.
Findings
The developed tool was successfully able to model and simulate the six renovation scenarios across the three demonstration sites. The ability to simulate various renovation scenarios for a given project can help to strategise renovation interventions based on selected key performance indicators as well as their correlation at two different levels: the building level and the renovated surface area level.
Originality/value
The objectives of this paper are twofold: firstly, to present an automated process, using BIM, for evaluating and comparing renovation scenarios in terms of duration, cost, workers needed and disruptive potential; next, to show the subsequent testing of the process and the analysis of its applicability and behaviour when applied on three live demonstration sites located in three different European countries (France, Greece and Denmark), involving six renovation scenarios.
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Tadeo Baldiri Salcedo Rahola and Ad Straub
The aim of the present study was to characterize the main project delivery methods that are used for the renovation of social housing, and to analyse the advantages and…
Abstract
Purpose
The aim of the present study was to characterize the main project delivery methods that are used for the renovation of social housing, and to analyse the advantages and disadvantages of their application for energy renovations in order to assist social housing organisations in making an informed decision on the choice of a project delivery method that suits their organizational context.
Design/methodology/approach
The study is based on a literature review, five case studies of renovation processes by five social housing organizations in four EU countries, a questionnaire completed by 36 social housing organizations from eight EU countries, and a series of 14 interviews with energy renovation experts from ten EU countries.
Findings
Four main project delivery methods were identified: iterative minor renovations, design‐bid‐build, design‐build and design‐build‐maintain. Design‐build‐maintain has the maximum potential to deliver energy savings because it facilitates collaboration between the various actors and promotes their commitment to achieving project goals.
Research limitations/implications
The presented data is not meant to be representative for a country or the sector as a whole, but aims to indicate the main characteristics of the current energy renovations carried out by European social housing organizations.
Practical implications
Social housing organizations are provided with useful information about the advantages and disadvantages of different project delivery methods for energy renovation projects, assisting them to choose the option that suits their organizational context.
Originality/value
This study fills a knowledge gap about the project delivery methods currently used in social housing energy renovations and their potential for energy renovations.
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Daniel Herrera-Avellanosa, Franziska Haas, Gustaf Leijonhufvud, Tor Brostrom, Alessia Buda, Valeria Pracchi, Amanda Laurel Webb, Walter Hüttler and Alexandra Troi
Improving the energy performance of historic buildings has the potential to reduce carbon emissions while protecting built heritage through its continued use. However…
Abstract
Purpose
Improving the energy performance of historic buildings has the potential to reduce carbon emissions while protecting built heritage through its continued use. However, implementing energy retrofits in these buildings faces social, economic, and technical barriers. The purpose of this conceptual paper is to present the approach of IEA-SHC Task 59 to address some of these barriers.
Design/methodology/approach
Task 59 aims to achieve the lowest possible energy demand for historic buildings. This paper proposes a definition for this concept and identifies three key socio-technical barriers to achieving this goal: the decision-makers’ lack of engagement in the renovation of historic buildings, a lack of support during the design process and limited access to proven retrofit solutions. Two methods – dissemination of best-practice and guidelines – are discussed in this paper as critical approaches for addressing the first two barriers.
Findings
An assessment of existing databases indicates a lack of best-practice examples focused specifically on historic buildings and the need for tailored information describing these case studies. Similarly, an initial evaluation of guidelines highlighted the need for process-oriented guidance and its evaluation in practice.
Originality/value
This paper provides a novel definition of lowest possible energy demand for historic buildings that is broadly applicable in both practice and research. Both best-practices and guidelines are intended to be widely disseminated throughout the field.
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Shanshan Bu, Geoffrey Shen, Chimay J. Anumba, Andy K.D. Wong and Xin Liang
This research paper is a literature review of the existing building retrofitting process. It proposes studying the functional, technical, and organizational issues of the green…
Abstract
Purpose
This research paper is a literature review of the existing building retrofitting process. It proposes studying the functional, technical, and organizational issues of the green retrofit process. The purpose of this paper is to expand the domain of design framework for retrofitting existing buildings.
Design/methodology/approach
The paper provides a review of the model-based design process from enrollment to evaluation stages representing the green retrofitting process in selected publications. The paper opted to review the Green Retrofit Design (GRD) process model for achieving a systematic design model of GRD development in the future.
Findings
Functional and maintenance issues are mainly for new buildings, also in the field for renovation and demolishing. Publications also show that environmental, social, and technical issues are often examined separately in the decision process of GRD. Papers in the facility management scale would concentrate more on organization/legal issues. Publications with questionnaire design are devoted to the usage on life-cycle assessment on existing building, but not yet on the stakeholder management and design process and related issues.
Social implications
The achievement of the study is to provide a new framework of design approach that is significant to the theoretical research, education, communication, and practical works in terms of GRD development.
Originality/value
The paper not only achieves a specific sequence of practical approaches, including awareness of problems, conceptual development, and design embodiment, to meet design objectives, but also conforms to academic practice-based research of creative design taking on GRD practice.
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Giulia Nardelli, Jesper Ole Jensen and Susanne Balslev Nielsen
The purpose of this article is to investigate how facilities management (FM) units navigate Energy Service Company (ESCO) collaborations, here defined as examples of public…
Abstract
Purpose
The purpose of this article is to investigate how facilities management (FM) units navigate Energy Service Company (ESCO) collaborations, here defined as examples of public collaborative innovation within the context of FM. The driving motivation is to inform and inspire internal FM units of local institutions on how to navigate and manage collaboration of different, intra- and inter-organisational actors throughout ESCO projects.
Design/methodology/approach
A deductive research methodology was applied based on the first ten ESCO projects in Danish municipalities between 2008 and 2012.
Findings
A model of FM roles in FM public innovation is proposed. The internal FM unit coordinates between clients and end users by acting as translator and demonstrator and collaborates with the ESCO company to implement the energy renovation (FM processor).
Research limitations/implications
The data were collected from a limited sample of ESCO collaborations in Denmark. Future research should thus investigate collaborative innovation in ESCO (and other forms of private–public) collaborations outside of Denmark.
Practical implications
Not only should FM units clarify what different stakeholders expect from an ESCO collaboration, but also they should translate stakeholders’ expectations into actual goals and objectives; process them together with the ESCO company; demonstrate their execution to all stakeholders throughout the process, not just when closing the collaboration.
Originality/value
This paper contributes to FM innovation research by exploring FM innovation in the public sector and by depicting the coordinating role of local governments’ internal FM units engaging in public–private collaborative innovation.
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Gordon Wills, Sherril H. Kennedy, John Cheese and Angela Rushton
To achieve a full understanding of the role ofmarketing from plan to profit requires a knowledgeof the basic building blocks. This textbookintroduces the key concepts in the art…
Abstract
To achieve a full understanding of the role of marketing from plan to profit requires a knowledge of the basic building blocks. This textbook introduces the key concepts in the art or science of marketing to practising managers. Understanding your customers and consumers, the 4 Ps (Product, Place, Price and Promotion) provides the basic tools for effective marketing. Deploying your resources and informing your managerial decision making is dealt with in Unit VII introducing marketing intelligence, competition, budgeting and organisational issues. The logical conclusion of this effort is achieving sales and the particular techniques involved are explored in the final section.
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Evangelos Manolas, Georgios Tsantopoulos and Kyriaki Dimoudi
The purpose of this paper is to outline the views of citizens on issues related to energy saving and the realization of bank products in buildings under renovation such as energy…
Abstract
Purpose
The purpose of this paper is to outline the views of citizens on issues related to energy saving and the realization of bank products in buildings under renovation such as energy saving interventions in the building envelope, installment of maximum efficiency air-conditioning systems, etc.
Design/methodology/approach
The collection of data was done through a structured questionnaire. The data are important because they show the attitudes of citizens while they simultaneously assess the effectiveness of the program after the application for many years of the energy saving program by the state.
Findings
The results of the research show that with regard to responsible actions by citizens as far as impacts on climate change are concerned, cognitive factors are more important than behavioral factors. The most important reason with regard to citizens restricting the consumption of electrical energy is saving money. Finally, the vast majority of citizens declare that they know about the existence of “green” bank financial programs and claim that these contribute to environmental protection. Despite all this, a very small percentage of citizens have realized some sort of financial program in order to save energy claiming that the main reason for their choice was the country’s economic crisis.
Originality/value
This investigation of the views of citizens may constitute a tool both for designing of effective environmental policy but also for the assessment of energy saving programs such as the one discussed in this paper.
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Aim of the present monograph is the economic analysis of the role of MNEs regarding globalisation and digital economy and in parallel there is a reference and examination of some…
Abstract
Aim of the present monograph is the economic analysis of the role of MNEs regarding globalisation and digital economy and in parallel there is a reference and examination of some legal aspects concerning MNEs, cyberspace and e‐commerce as the means of expression of the digital economy. The whole effort of the author is focused on the examination of various aspects of MNEs and their impact upon globalisation and vice versa and how and if we are moving towards a global digital economy.
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