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Paper machines consume large amounts of energy and in most cases savings are possible. The drying section in the paper machine has been structurally modified through 60 years of operation, with limited use of the heat recovery system. The objective of the work is to assess the opportunities for energy conservation, through the application of energy management systems in the paper factory.Methodologies are applied for energy balance and heat integration, taking into account the requirements specified by the Cuban standard ISO 50001 for energy management systems in terms of energy review. Pinch analysis is applied using HENSAD and Aspen Energy Analyzer computing resources. The proposed energy performance indicators constitute a reference for the definition of an energy baseline. Energy conservation opportunities are identified with a total annual saving of $ 48,902 that makes it feasible to execute a project of $ 35 546, whose capital cost is estimated to be recovered in 2 years. [ABSTRACT FROM AUTHOR]

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Copyright of Investigación Económica is the property of Universidad Nacional Autonoma de Mexico, Facultad de Economia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Acta Agrícola & Pecuaria is the property of Universidad Autonoma del Estado de Morelos and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Ingenius, Revista Ciencia y Tecnología is the property of Universidad Politecnica Salesiana and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Cuadernos del Centro de Estudios de Diseño y Comunicación is the property of Cuadernos del Centro de Estudios de Diseno y Comunicacion and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In this paper, a new model is developed by referring to the literature on Dutch disease and rent-seeking for explaining how a natural resource boom in the energy sector decreases national income and induces a resource movement effect under a rent-seeking monopoly. In such a model, it is shown that the resource movement effect certainly occurs during the boom where labor inputs will move to the energy sector from the services sector. Moreover, the boom facilitates rent-seeking and decreases national income. [ABSTRACT FROM AUTHOR]

This paper, it was analyzed how the angle of inclination and the azimuth influence the generation of a photovoltaic plant. The plants belonging to the 100 MW program, consisting of 30 photovoltaic plants distributed in Cuba, were analyzed. First, the plants with their current design were simulated and the results were compared with the measurements obtained in each plant. The comparison allowed validating the simulations, where the difference remained below 10%, in most cases. The next step was that different angles of inclination and an east-west orientation were analyzed. The results were compared with studies carried out in other parts of the world, where it is proposed that the angle of inclination and the east-west orientation as a new solution to increase the energy produced by a photovoltaic power plant, taking into account the geographical position, climatic conditions and the investment value or cost of the plant. [ABSTRACT FROM AUTHOR]

Process Integration combine several processes to reduce consumption of resources and harmful emissions, becoming an important asset in ensuring the sustainability of industrial processes. This paper aims to set energy performance indicators of a cane sugar refinery. A procedure that includes the energy analysis and Pinch Analysis methodologies is applied, with the use of HENSAD. Targets and energy performance indicators, currently not reported for this refinery, contribute to the definition of an energy baseline and the systematic measurement of efficiency. There is an excess in thermal power duty of 32,5 MW with respect to the minimum heating duty, which determines the research into retrofit designs of the heat exchanger network. Annual savings of 1 010 571 USD estimated in energy analysis and heat integration make the evaluation of investment projects in the energy area feasible. [ABSTRACT FROM AUTHOR]

The energy transition process is reflected in the transformation of landscapes. The progressive incorporation of increasingly more modern energy technologies opens debates in European countries related to their landscape integration and the social perception. In Argentina, the energy landscapes have not been relevant enough as to be a subject of analysis in the academic field. Based on the lack of antecedents, this exploratory paper aims at considering the landscape as a geographical analysis category about the past and present use of wind energy. The objective is to study the patrimonial worthiness and the socio-environmental challenges, as the result of the transformation of the landscapes, by the materialization of the energy transition. To achieve this, it applies a qualitative methodology and different space-time analysis scales. The work reconstructs the heritage legacy of the wind from old low-power facilities for milling, water pumping and electricity production that are revalued by society. It also makes a preliminary analysis of the emerging wind landscapes after the start-up of large wind farms in certain regions of the country. The new landscapes created by the installation of wind turbines produce very diverse reactions in communities, ranging from acceptance to social rejection, including neutrality or indifference. [ABSTRACT FROM AUTHOR]

Copyright of Revista Mexicana de Ciencias Politicas y Sociales is the property of Revista Mexicana de Ciencias Politicas y Sociales and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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The document titled "COM (2011) 144 final. Brussels, March 28, 2011 White Paper: Roadmap to a Single European Transport Area: Towards a competitive and sustainable transport policy" presents a roadmap to achieve a competitive and sustainable transport system in Europe. It emphasizes the need to break the dependence on oil in the transport sector, without sacrificing efficiency or mobility. Ten objectives are established to reduce greenhouse gas emissions and optimize the performance of multimodal logistics chains. The importance of developing adequate infrastructure and using new technologies is also mentioned. The document includes a list of initiatives related to efficient mobility, technology and behavior, infrastructure and intelligent financing, and the external dimension. [Extracted from the article]

Copyright of Dyna is the property of Universidad Nacional de Colombia, Medellin, Facultad de Minas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Tecnología y Ciencias del Agua is the property of Instituto Mexicano de Tecnologia del Agua (IMTA) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The possibility of having cleaner and more sustainable energy networks, as well as reducing the consequences of climate change, promotes transitions towards efficient energy matrices based on renewable energy. The diffusion of ICT, the most efficient use of energy and the promotion of distributed energy generation advances in different territorial scales. Within this framework, Smart Electrical Grids (SEGs), which combine traditional electricity supply with ICT, constitute a new way of organizing the flows of electricity and of information based on the integration of data from the various nodes of the energy network. This paper explores the sociotechnical changes of a case of smart grids in the province of Mendoza on the basis of observations and semi-structured interviews in the localities involved. From the perspective of the social studies of technology, the normative antecedents of distributed energy generation and smart grids (SEGs) are investigated as well as the process of transformation of the "user / consumer" to the "user / generator". Smart grids enable the incorporation of renewable energy as well as favoring territorial expansion into marginal regions while promoting an eventual advance towards a national sustainable energy system. [ABSTRACT FROM AUTHOR]

Copyright of Revista INVI is the property of Universidad de Chile and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Cuadernos de Administración (01203592) is the property of Pontificia Universidad Javeriana and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Dearq is the property of Universidad de los Andes and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Visión Electrónica is the property of Fondo de Universidad Distrital Francisco Jose de Caldas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista ION is the property of Universidad Industrial de Santander and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The production of energy is directly related to the growing demand and excessive dependence on the production of fossil resources, that is, coal, oil and natural gas, which must be planned in a safe, clean, efficient and sustainable scenario. The objective of this paper is to analyze oil production in the Bolivarian Republic of Venezuela, during the period between 2002 and 2015. An econometric model was developed using the Cobb-Douglas production function and the results obtained allowed observing the existing gap between real production and the goals proposed by the Venezuelan State. [ABSTRACT FROM AUTHOR]

Copyright of Latin-American Journal of Physics Education is the property of Latin-American Physics Education Network and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Innovacion Educativa is the property of Universidad de Santiago de Compostela, Servicio de Publicaciones and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In this work is realized a discussion of all papers that the sugar cane production and other products derivates of sugar cane, that were published in the Centroazucar Review through 2000-2008 period. It is included one total of 472 scientific papers, 68 concerning the sugar cane productions, 28 with reference to de ethanol productions and 114 about other derivers' products of sugar cane. It is significant, the emphasis that it is made in the scientifically investigations concerning sugar machines with 84 Scientifics article and about welding activity with 33 articles publicities in the analyzing time. Also, there are contributing publications about the energetic and environmental problems with a total of 53 and 22 respectability. Finally, conclusions are elaborated on for future works. [ABSTRACT FROM AUTHOR]

Copyright of Problemas del Desarrollo. Revista Latinoamericana de Economía is the property of Universidad Nacional Autonoma de Mexico. Instituto de Investigaciones Economicas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This paper presents the used methodology to calculate the present and future potentials of total biomass wastes, from the economic, social, environmental and technological point of view in accordance with the principles of sustainable development. From the values of sugarcane, coffee, rice, and sawmill wastes, through information provided by the main producing companies in Cienfuegos province, it was possible to determine the total energy delivered, as well as the amount of CO2 emitted into the atmosphere. In the case of the bagasse, the total energy was 4.409E+08 MJ, leaving 137 652.9 t CO2 to emit in the atmosphere. For the filter cake it was 7.093E+08 MJ and 221 423.9 tCO2. In the case of coffee and rice residues these values were 4.808E+05 MJ with 184 tCO2 for coffee and 6.34E+07MJ with 19 868.87 tCO2 for rice, respectively. Finally, the total energy for sawmill waste was 4.108E+07 MJ and 2 346.72 tCO2. [ABSTRACT FROM AUTHOR]

Marine energies are being increasingly considered worldwide as a major and promising resource. One of them, wave energy, captures the mechanical energy of waves to generate electricity. This paper presents a review of the following topics: global energy situation, advantages and currently used types of wave energy converters. Chile possesses an energy situation that requires the use of new technologies. The region of Tarapacá has a considerable potential for generating electricity from waves, so using this type of energy is presented as a highly relatable option with industries that are part of the major economic driver of the region. [ABSTRACT FROM AUTHOR]

The production of energy is directly related to the growing demand and excessive dependence on the production of fossil resources, that is, coal, oil and natural gas, which must be planned in a safe, clean, efficient and sustainable scenario. The objective of this paper is to analyze oil production in the Bolivarian Republic of Venezuela, during the period between 2002 and 2014. An econometric model was developed using the Cobb-Douglas production function and the results obtained allowed observing the existing gap between real production and the goals proposed by the Venezuelan State. [ABSTRACT FROM AUTHOR]

Copyright of Revista Internacional de Sociología is the property of Consejo Superior de Investigaciones Cientificas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of DYNA - Ingeniería e Industria is the property of Publicaciones Dyna SL and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The paper presents a study on the potential of improvements in the technological process of the plants of the province of Cienfuegos, in order to be able to evaluate alternatives to achieve the increase in the delivery of electric energy to the National Electroenergetic System. The five current thermoenergy schemes of the plants under study are described, as well as the Termoazúcar system (STA 4.1) to evaluate a base case in each one of them and to be able to determine the opportunities of improvements from the analysis of operational indicators. The proposed measures are implemented in the improved cases, with the conclusion that changes in the technological process in the plants favor an increase of 12 to 38% of the excess bagasse for each plant, as well as an increase of 22 382.8 kWh / d more than for base cases in the amount of energy sold. [ABSTRACT FROM AUTHOR]

The objective of this research is to design a methodology to support a process of monitoring, measurement and analysis of energy performance for a leader company in the manufacturing of various types of paper for industrial use. The methodology is based on the pentalogy of Taiichi Ohno offering a chain of five management activities from the need to measure until the selection of energy performance improvements for an organization. The result is a detailed description for the activities for measurement, know, control, management and improvement. Key findings indicate that it is possible to apply the approach Taiichi Ohno to organize a process of monitoring, measurement, control and analysis of energy performance in a manufacturing company supported by consumption indicators, performance and energy savings associated with areas and operational equipment. [ABSTRACT FROM AUTHOR]

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A design for primary education teacher training is presented and analyzed in this paper. The design addresses scientific and educational aspects and focuses on the study of erosion from the energy perspective 35 groups (131 students in total) collaborated in the design development and their reports were analyzed. Results show that groups of students did not have scientific limitations when identifying changes in landscape related to the erosive agent, the agent's characteristics or the type of energy implicated on erosion. However, they had some difficulties formulating key concepts -specific contents- they should teach and including those ideas in learning activities. These observations specially apply to the energy model that should be used in the context of erosion in primary education. Participants in the study showed less teaching skills time after the learning activity compared to their skills during the activity. Finally, in the light of these results, changes aiming to improve this design are suggested. [ABSTRACT FROM AUTHOR]

Copyright of Vniversitas is the property of Pontificia Universidad Javeriana and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In wireless sensor networks applications, events occur occasionally; therefore, the design of protocols has been focused on saving energy mainly. As consequence of this protocol design strategy most of these energy-efficient protocols limit the use of wireless sensor networks to those applications where a fast response time and the bandwidth are not important. This paper proposes the LEMR-multichannel protocol (Latency, Energy, MAC and Routing, for its acronym in English). LEMR-multichannel is a communication protocol based on a multilayer design which involves the physical, medium access and network layer, which not only preserves the energy efficiency of current protocols but also coordinates the transfer of packets from source to destination in such a way that the network performance in terms of bandwidth, delay and jitter is improved significantly. The LEMR-multichannel superiority in terms of these variables is shown when it is compared with other well-known protocols (TMAC and YMAC), through several simulation experiments. [ABSTRACT FROM AUTHOR]