698 research outputs found

    A Systematisation of Methods for Heat Integration of Solar ThermalEnergy in Production Processes: A Review

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    The widespread use of fossil fuels and their limitation leads to find other sources of energy. Solar thermal energy is a possible solution. There are many projects that use renewable energy. Solar thermal energy can be easily used for heating. However, there are problems in the efficiency of solar collectors, the loss of heat, the consistency of heat supply, temperature and weather conditions, the biggest problem being the heat storage. In this paper is provided an overview of the methodologies for thermal integration of solar heating systems implemented in various projects and research. Solar heating systems have different designs and can generate heat in different temperature ranges. The main emphasis in this comprehensive overview is the systematisation of the various methodologies used in the integration of solar heat in production. In principle, solar heating systems are directly connected to the production systems. Furthermore, a few methodologies like Pinch technology, mathematical modelling and cogeneration are included

    Achievements and perspectives of process integration in cis countries

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    Due to the rapid growth in the world population, there has been an increase in energy consumption globally. The problem of efficient energy use becomes more relevant and stimulates research and development of new energy and resource-saving technologies. This task is becoming more complicated when the other factors are accounted for, resulting in multiple-factor trade-offs, such as the water-energy-food nexus. This paper highlights the main points for the development of Process Integration in the Commonwealth of Independent States (CIS) countries. It shows the main achievements in the field to date and demonstrates the scientific schools that are working on these problems. A comprehensive review of modern approaches and methods, which are now being developed or have been recently developed, was done. It shows a research gap in Process Integration in CIS and other leading countries. It demonstrates the significant research potential as well as practical applications. The main challenges in process systems engineering and for the sustainable development of industrial energy systems are also discussed. Industry digital transformation, energy transition, circular economy, and stronger energy and water integration are pointed out as priorities in analysis, design, and retrofit of society in the future. A state-of-the-art review in the area of integration of continuous and batch processes, mass integration technologies, and process intensification is presented to show the variety of existing approaches. The necessity of Process Integration development in the CIS is shown to be a necessary condition for building a more sustainable society and a resource-efficient economy

    Enhancement of Industrial Energy Efficiency and Sustainability

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    Industrial energy efficiency has been recognized as a major contributor, in the broader set of industrial resources, to improved sustainability and circular economy. Nevertheless, the uptake of energy efficiency measures and practices is still quite low, due to the existence of several barriers. Research has broadly discussed them, together with their drivers. More recently, many researchers have highlighted the existence of several benefits, beyond mere energy savings, stemming from the adoption of such measures, for several stakeholders involved in the value chain of energy efficiency solutions. Nevertheless, a deep understanding of the relationships between the use of the energy resource and other resources in industry, together with the most important factors for the uptake of such measures—also in light of the implications on the industrial operations—is still lacking. However, such understanding could further stimulate the adoption of solutions for improved industrial energy efficiency and sustainability

    Towards a low-carbon economy : A nexus-oriented policy coherence analysis in Greece

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    The sustainable management of natural resources under climate change conditions is a critical research issue. Among the many approaches emerged in recent times, the so-called 'nexus approach' is gaining traction in academic and policy circles. The nexus approach presupposes the analysis of bio-physical, socio-economic and policy interlinkages among sectors (e.g., water, energy, food) for the identification of integrated solutions and the support of policy decisions. Ultimately, the nexus approach aims to identify synergies and trade-offs among the nexus dimensions. Concerning policy, the nexus approach focuses on policy coherence, i.e., the systematic identification and management of trade-offs and synergies between policies across sectors. This paper investigates the coherence between policies on the water-land-energy-food-climate nexus in Greece. The systematic analysis of policy documents led to the elicitation of nexus-related policy objectives and instruments. Then, the coherence among objectives and between objectives and instruments was assessed using the methodology proposed by Nilsson et al. A stakeholder (trans-disciplinary) orientation was adopted and the need to incorporate stakeholders' recommendations as to policy coherence assessment was highlighted. Overall, the findings revealed that climate and food/agricultural policies represent critical future priorities in Greece by stimulating progress in other nexus-related policies (energy, water, land policies) and being positively influenced by them.</p

    Carbon Budget—the agenda for mitigation. Australia, Canada, the European Union and Japan

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    human development, climate change

    Developing a methodology for appraising building integrated low or zero carbon technologies

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    Strathclyde theses - ask staff. Thesis no. : T13113The advent of environmentally driven building regulations, rising energy costs, and heightened client awareness of energy related issues has increased the demand for assessing the potential of Low or Zero Carbon (LZC) energy supply systems. There are many software tools that have been developed to assist the designer in carrying out performance appraisals ranging from simple device models for feasibility assessments through to integrated simulation tools for detailed analyses of building integrated technologies. However, it is seldom the case that any one software tool can undertake a complete appraisal for building integrated LZC technologies. Usually a range of tools is required for different technology options at different design stages. Therefore there is a clear need for an effective assessment methodology for the use of software in LZC technology analysis. The objective of this project was to develop this methodology and apply the software (termed a "toolkit") to a 'real design' problem. The results from the analysis are discussed and clarity for presenting these results to non-technical stakeholders, within the design process, has been emphasised.The advent of environmentally driven building regulations, rising energy costs, and heightened client awareness of energy related issues has increased the demand for assessing the potential of Low or Zero Carbon (LZC) energy supply systems. There are many software tools that have been developed to assist the designer in carrying out performance appraisals ranging from simple device models for feasibility assessments through to integrated simulation tools for detailed analyses of building integrated technologies. However, it is seldom the case that any one software tool can undertake a complete appraisal for building integrated LZC technologies. Usually a range of tools is required for different technology options at different design stages. Therefore there is a clear need for an effective assessment methodology for the use of software in LZC technology analysis. The objective of this project was to develop this methodology and apply the software (termed a "toolkit") to a 'real design' problem. The results from the analysis are discussed and clarity for presenting these results to non-technical stakeholders, within the design process, has been emphasised
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