34 research outputs found

    E-waste: Environmental Problems and Current Management

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    In this paper the environmental problems related with the discarded electronic appliances, known as e-waste, are reviewed.Moreover, the current and the future production of e-waste, the potential environmental problems associated with theirdisposal and management practices are discussed whereas the existing e-waste management schemes in Greece and othercountries (Japan, Switzerland) are also quoted

    RINNO: Towards an Open Renovation Platform for Integrated Design and Delivery of Deep Renovation Projects

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    The building stock accounts for a significant portion of worldwide energy consumption and greenhouse gas emissions. While the majority of the existing building stock has poor energy performance, deep renovation efforts are stymied by a wide range of human, technological, organisational and external environment factors across the value chain. A key challenge is integrating appropriate human resources, materials, fabrication, information and automation systems and knowledge management in a proper manner to achieve the required outcomes and meet the relevant regulatory standards, while satisfying a wide range of stakeholders with differing, often conflicting, motivations. RINNO is a Horizon 2020 project that aims to deliver a set of processes that, when working together, provide a system, repository, marketplace and enabling workflow process for managing deep renovation projects from inception to implementation. This paper presents a roadmap for an open renovation platform for managing and delivering deep renovation projects for residential buildings based on seven design principles. We illustrate a preliminary stepwise framework for applying the platform across the full-lifecycle of a deep renovation project. Based on this work, RINNO will develop a new open renovation software platform that will be implemented and evaluated at four pilot sites with varying construction, regulatory, market and climate contexts

    Development of a methodological framework for assessing the environmental sustainability of industrial facilities and processes

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    The primary objective of this PhD thesis is to improve the way in which industries assess the environmental sustainability of their industrial facilities and processes, through the development of an innovative methodological framework. The proposed framework was build upon the principles and proposals of Industrial Ecology (IE), in order to ensure that the most significant issues in terms of environmental sustainability will be assessed and sustainable actions highlighted by IE will be promoted. The PhD thesis is structured in six (6) interrelated chapters, each of which answers to specific key queries.In Chapter 1, the objectives of the thesis are defined. Additionally, the characteristics of sustainable development are summarized and analyzed in order to enhance the understanding of the theoretical background. In Chapter 2, the special characteristics and challenges regarding the assessment of environmental sustainability are highlighted. Furthermore, an original and comprehensive literature review of the available assessment methods is performed. The aim of this review is to document the research gap to be covered by this thesis, and highlight the general characteristics that should be involved in an efficient assessment method. In Chapter 3, the characteristics, the principles and tools of Industrial Ecology are analyzed. According to these principles, the parameters in which an industry should focus in order to improve its environmental sustainability are selected. In Chapter 4, the final methodological framework for assessing the environmental sustainability of industrial facilities and processes is presented in detail. The framework consists of ten (10) well defined steps that include specific guidelines and tips that allow its gradual implementation. The steps were selected with a view to address major shortcomings identified during the analysis of forty eight (48) relevant methods available in current literature such as their ability to help decision making, the adequacy of environmental aspects examined, the applicability by non-experts and the integration of spatial and temporal characteristics in the assessment. Eight (8) assessment categories were selected which are assessed with the application of thirty five (35) core indicators carefully selected from a pool of environmental sustainability indicators according to pre-defined ranking criteria. A normalization procedure is applied following a distance to a sustainability reference point approach, which enables the parallel evaluation of every indicator in comparison with a commonly accepted sustainability goal or threshold. In Chapter 5, the methodological framework is applied to a case study in order to evaluate the usefulness and identify additional ways of improving its usability. In Chapter 6, the main conclusions of the thesis are summarized. Additionally, further research areas for improving the assessment of the environmental sustainability of industrial/wider systems, are proposed.Βασικός σκοπός της παρούσας διδακτορικής διατριβής είναι η βελτίωση του τρόπου με τον οποίο οι βιομηχανίες αποτιμούν την περιβαλλοντική βιωσιμότητα των βιομηχανικών εγκαταστάσεων και διεργασιών τους, μέσω της ανάπτυξης ενός καινοτόμου μεθοδολογικού πλαισίου αποτίμησης. Το μεθοδολογικό πλαίσιο αναπτύχθηκε σύμφωνα με τις αρχές της Βιομηχανικής Οικολογίας για την ενίσχυση της περιβαλλοντικής βιωσιμότητας βιομηχανικών συστημάτων και με γνώμονα την αντιμετώπιση των κυριότερων αδυναμιών των διαθέσιμων μεθόδων αποτίμησης. Το αντικείμενο της διδακτορικής διατριβής δομείται σε έξι (6) αλληλένδετα Κεφάλαια, καθένα από τα οποία απαντάει σε συγκεκριμένα ερωτήματα. Στο 1ο Κεφάλαιο, ορίζεται το πρόβλημα το οποίο καλείται να επιλύσει η παρούσα διατριβή, ενώ συνοψίζονται και αναλύονται τα ιδιαίτερα χαρακτηριστικά της βιώσιμης ανάπτυξης ώστε να ενισχυθεί η κατανόηση του θεωρητικού υποβάθρου της. Στο 2ο Κεφάλαιο, αναδεικνύονται τα ιδιαίτερα χαρακτηριστικά και προκλήσεις της διαδικασίας αποτίμησης της περιβαλλοντικής βιωσιμότητας. Επιπλέον, εκπονείται μια πρωτότυπη και αναλυτική βιβλιογραφική ανασκόπηση των διαθέσιμων μεθόδων αποτίμησης, με στόχο την τεκμηρίωση του ερευνητικού κενού το οποίο καλύπτει η παρούσα διατριβή και την ανάδειξη των γενικών χαρακτηριστικών τα οποία θα πρέπει να εμπεριέχει μια μέθοδος αποτίμησης. Στο 3ο Κεφάλαιο, αναλύονται τα χαρακτηριστικά, οι αρχές και τα εργαλεία της Βιομηχανικής Οικολογίας βάσει των οποίων επιλέγονται τα στοιχεία εκείνα στα οποία μια βιομηχανία θα πρέπει να στοχεύει ώστε να βελτιώσει την περιβαλλοντική της βιωσιμότητα και κατά επέκταση χρήζουν αποτίμησης. Η Βιομηχανική Οικολογία επιλέχθηκε λόγω της ικανότητάς της να υποστηρίζει καινοτόμες και δημιουργικές δράσεις όσον αφορά την βιώσιμη ανάπτυξη. Στο 4ο Κεφάλαιο, παρουσιάζεται αναλυτικά το τελικό μεθοδολογικό πλαίσιο αποτίμησης της περιβαλλοντικής βιωσιμότητας βιομηχανικών εγκαταστάσεων και διεργασιών. Η ανάπτυξη του πλαισίου πραγματοποιείται με γνώμονα την επίλυση των αδυναμιών που παρουσιάστηκαν, της κάλυψης των αρχών της Βιομηχανικής Οικολογίας και των γενικών κανόνων ανάπτυξης σύνθετων δεικτών από την βιβλιογραφία. Αποτέλεσμα όλων αυτών των δράσεων, είναι η ανάπτυξη ενός τελικού μεθοδολογικού πλαισίου το οποίο μπορεί να εφαρμοστεί από όλες τις βιομηχανίες και αποτιμά με αξιόπιστο και αποτελεσματικό τρόπο την περιβαλλοντική τους βιωσιμότητα τονίζοντας τις περιοχές ιδιαίτερου ενδιαφέροντος. Στο 5ο Κεφάλαιο, το μεθοδολογικό πλαίσιο εφαρμόζεται σε μια μελέτη περίπτωσης ώστε να αξιολογηθεί η χρησιμότητά του και να ανεβρεθούν επιπλέον τρόποι βελτίωσης της χρηστικότητάς του. Στο 6ο Κεφάλαιο συνοψίζονται τα βασικά συμπεράσματα της διδακτορικής διατριβής και προτείνονται πεδία μελλοντικής έρευνας για την περαιτέρω βελτίωση του τρόπου αποτίμησης της περιβαλλοντικής βιωσιμότητας βιομηχανικών/ευρύτερων συστημάτων

    A Conceptual Framework to Evaluate the Environmental Sustainability Performance of Mining Industrial Facilities

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    The aim of this study is to strengthen the capacity of mining industries to assess and improve their environmental sustainability performance through the introduction of a relevant framework. Specific assessment categories and respective indicators were selected according to predefined steps. Sustainability threshold values were identified for each indicator to enable the comparison of the facility’s performance with a sustainability reference value. The application of the framework results in the extraction of an Environmental Sustainability Assessment of Mining Industries Index (IESAMI). The framework was applied to evaluate a mining facility in Greece, with a view to improve its applicability in parallel. The final score of environmental sustainability for the examined facility was 3.0 points (IESAMI = 3.0 points), indicating significant room for improvement where the company should aim to further enhance its sustainability performance

    Assessing Impact, Performance and Sustainability Potential of Smart City Projects: Towards a Case Agnostic Evaluation Framework

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    We report on a novel evaluation framework to globally assess the footprint of smart cities and communities (SCC) projects, being also expandable to the case of smart grid related projects. The uniform smart city evaluation (USE) framework is constructed upon three complementary evaluation axes: the first one aims to weigh up the success of a SCC project based on performance metrics against pre-defined project-specific target values. The second axis focuses on the project’s impact towards the sustainability of a city and it is bench-marked against national and international key objectives arising from strategic plans. This bench-marking feeds the third axis which provides a more inclusive evaluation against four pre-defined and widely acclaimed sectors of interest. The steps to be followed for the uniform evaluation of each axis and corresponding index are presented in detail, including necessary key performance indicator (KPI) normalization, weighting, and aggregation methods. The resulting indices’ scores for each axis (namely project performance index, sustainability impact index, and sustainability performance index) can be post-processed with adequate data processing and visualization tools to extract important information on the extent to which the range of success of a SCC project contributes to the city sustainability progress. Illustrative examples from an on-going SCC project are provided to highlight the strengths of the approach. The proposed framework can be used to compare multiple projects within a city and sustainability and project performance in different cities, evaluate the interventions chosen per project against city needs, benchmark and design future projects (with, e.g., reverse engineering, projections), as well as evaluate various spatial and temporal scales

    From a Comprehensive Pool to a Project-Specific List of Key Performance Indicators for Monitoring the Positive Energy Transition of Smart Cities:An Experience-Based Approach

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    As cities grow rapidly and energy needs increase, shaping an effective energy transition is a top priority towards urban sustainability and smart development. This study attempts to answer three key research questions that can help city authorities, planners and interested agents simplify and increase the transparency of Key Performance Indicators (KPIs) selection for smart city and communities (SCC) projects focusing on energy transition and creation of Positive Energy Districts (PEDs): Question 1: “What resources are available for extracting such KPIs?”; Question 2: “Which of those KPIs are the most suitable for assessing the energy transition of smart city projects and PED-related developments?” and Question 3: “How can a project-specific shortlist of KPIs be developed?”. Answering these questions can also serve as a major first step towards a “universal” KPI selection procedure. In line with this purpose, an experiential approach is presented, capitalizing on knowledge and lessons learned from an ongoing smart city project in Europe (POCITYF) that focuses on PED deployment. Under this framework, a) a review of smart city KPI frameworks has been conducted, resulting in a pool of 258 indicators that can potentially be adopted by smart city projects; b) eight key dimensions of evaluations were extracted, setting a holistic performance framework relevant to SCCs; c) a detailed evaluation process including pre-determined criteria and city-needs feedback was applied to shortlist the KPI pool, leading to a ready-to-be-used, project-specific list of 63 KPIs and d) KPIs were sorted and analyzed in different granularity levels to further facilitate the monitoring procedure. The experiential procedure presented in this study can be easily adapted to the needs of every smart city project, serving as a recommendation guide

    The Smart City Business Model Canvas-A Smart City Business Modeling Framework and Practical Tool

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    Cities are challenged with increasing population growth and need to implement smart solutions to become more resilient to economic, environmental, and social challenges posed by ongoing urbanization. This study reviewed business model development frameworks and developed a practical tool to help cities assess business models by adapting components of the Business Model Canvas (BMC) and adding new ones that operationalize the smart city dimensions. The Smart City BMC (SC-BMC) proposed provides a practical framework that supports developing and communicating a more holistic and integrated view of a smart city business model. It also supports creatively innovating toward more sustainable value creation. As a framework, the SC-BMC bridges sustainable value creation for business model development and smart city innovation
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