CARMEN MEZURA GODOY, GERARDELLI SANTIAGO CRUZ, EDGARD IVAN BENITEZ GUERRERO
ABSTRACT: Usability evaluation is traditionally carried out with techniques such as: questionnaires, think-aloud, cognitive walkthroughs, and heuristics. The research works in this area are significant, they show advances such as improvements to different techniques, new technologies, frameworks, prototypes, and approaches to work on usability. Eye tracking is a data collection technique used in visual research (reading patterns, mental fatigue) and recently in usability studies. In this research work, the result of the systematic review of the literature on the evaluation of the usability of software systems through eye-tracking techniques is presented. The review method allowed the identification of techniques, procedures, tools, and metrics used by researchers to evaluate usability. Similarly, the review allowed us to identify areas of opportunity to evaluate usability considering other usability metrics not yet explored.
{"title":"USABILITY EVALUATION THROUGH EYE TRACKING: A SYSTEMATIC LITERATURE REVIEW","authors":"CARMEN MEZURA GODOY, GERARDELLI SANTIAGO CRUZ, EDGARD IVAN BENITEZ GUERRERO","doi":"10.6036/nt10966","DOIUrl":"https://doi.org/10.6036/nt10966","url":null,"abstract":"ABSTRACT: Usability evaluation is traditionally carried out with techniques such as: questionnaires, think-aloud, cognitive walkthroughs, and heuristics. The research works in this area are significant, they show advances such as improvements to different techniques, new technologies, frameworks, prototypes, and approaches to work on usability. Eye tracking is a data collection technique used in visual research (reading patterns, mental fatigue) and recently in usability studies. In this research work, the result of the systematic review of the literature on the evaluation of the usability of software systems through eye-tracking techniques is presented. The review method allowed the identification of techniques, procedures, tools, and metrics used by researchers to evaluate usability. Similarly, the review allowed us to identify areas of opportunity to evaluate usability considering other usability metrics not yet explored.","PeriodicalId":11386,"journal":{"name":"Dyna","volume":"13 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134900686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ABSTRACT: he advanced equipment manufacturing industry is an important symbol of a country's core competitiveness and an essential part of strategic emerging industries, whereas technological innovation is the key driving force for the progress of the advanced equipment manufacturing industry. A three-party (government-enterprise-Research & Development(R&D) institution) evolutionary game model was established to explore the internal mechanism of technological innovation impetus in the advanced equipment manufacturing industry. Results show that: (1) The driving force of technological innovation in the advanced equipment manufacturing industry comes from the cost-benefit situations of different subjects. (2) The strategy selection of subjects has a considerable learning effect. The decision of one subject is influenced by the decisions of the two others, and their decision behaviors tend to be identical. (3) Technology spillover effect and penalty effect exert a minor influence on the innovation decisions of different subjects. The findings enrich the theoretical results of technological innovation in the advanced equipment manufacturing industry by simulating different subjects' selection mechanisms of innovation strategies. It also provides practical guidance for the advanced equipment manufacturing industry to choose technological innovation strategies in different scenarios. Keywords: advanced equipment manufacturing industry; technological innovation impetus; evolutionary game
{"title":"MOTIVATIONAL MECHANISM OF ADVANCED EQUIPMENT MANUFACTURING INDUSTRY TECHNOLOGICAL INNOVATION BASED ON EVOLUTIONARY GAME","authors":"SISHI LIU, Xin Liang, KAN ZHANG","doi":"10.6036/10996","DOIUrl":"https://doi.org/10.6036/10996","url":null,"abstract":"ABSTRACT: he advanced equipment manufacturing industry is an important symbol of a country's core competitiveness and an essential part of strategic emerging industries, whereas technological innovation is the key driving force for the progress of the advanced equipment manufacturing industry. A three-party (government-enterprise-Research & Development(R&D) institution) evolutionary game model was established to explore the internal mechanism of technological innovation impetus in the advanced equipment manufacturing industry. Results show that: (1) The driving force of technological innovation in the advanced equipment manufacturing industry comes from the cost-benefit situations of different subjects. (2) The strategy selection of subjects has a considerable learning effect. The decision of one subject is influenced by the decisions of the two others, and their decision behaviors tend to be identical. (3) Technology spillover effect and penalty effect exert a minor influence on the innovation decisions of different subjects. The findings enrich the theoretical results of technological innovation in the advanced equipment manufacturing industry by simulating different subjects' selection mechanisms of innovation strategies. It also provides practical guidance for the advanced equipment manufacturing industry to choose technological innovation strategies in different scenarios.\u0000Keywords: advanced equipment manufacturing industry; technological innovation impetus; evolutionary game","PeriodicalId":11386,"journal":{"name":"Dyna","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135216415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The importance of aggregate production planning (APP) models is that they define the appropriate production levels and mix of items to meet product demand.
总体生产计划(APP)模型的重要性在于，它们定义了适当的生产水平和产品组合，以满足产品需求。
{"title":"INFLUENCE OF SERVICE LEVEL IN A STOCHASTIC PRODUCTION MODEL WITH UNCERTAIN DEMAND AND QUALITY","authors":"HECTOR RIVERA GOMEZ, RAFAEL GRANILLO MACIAS, JAIME GARNICA GONZALEZ, GUSTAVO ERICK ANAYA FUENTES","doi":"10.6036/10982","DOIUrl":"https://doi.org/10.6036/10982","url":null,"abstract":"The importance of aggregate production planning (APP) models is that they define the appropriate production levels and mix of items to meet product demand.","PeriodicalId":11386,"journal":{"name":"Dyna","volume":"191 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135217806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
PABLO RUIZ MINGUELA, JOSE LUIS VILLATE MARTINEZ, PUI WAH WONG, DONALD NOBLE, HENRY FORBES JEFFRE
The EU aims to achieve climate neutrality by 2050 through the European Green Deal and its commitment to global climate action under the Paris Agreement. Transitioning to a carbon-neutral society requires increasing the share of renewable energy across different sectors. Ocean energy can contribute to job creation, economic revitalization, and grid balancing. However, public funding and financial instruments are necessary to reduce risks, advance technology, and to support demonstration and pre-commercial projects in the ocean energy sector. The SEETIP Ocean project, supported by the European Commission through the Horizon Europe framework programme, aims to accelerate the deployment of the ocean energy sector by promoting collaboration among stakeholders. As part of the project, an analysis is being conducted to assess technological progress, identify implementation gaps, and update the Strategic Research and Innovation Agenda (SRIA) for Ocean Energy. The analysis reveals reasonable progress in research and innovation, albeit with smaller project sizes compared to current SRIA recommendations, and the need for increased support from national programmes. Some topics have been covered more than proposed funding and number of projects, while others not at all. This highlights the need for effective communication and collaboration between both the European Commission and Member State funders and their programmes. In addition, public support and funding is crucial to lower investment risks and propel ocean energy technologies towards commercialisation. With appropriate funding and policy support, the European ocean energy sector could strengthen its position as a worldwide leader and harness the socio-economic benefits from the sector. Keywords: Climate neutrality, Ocean energy, Funding, Strategic Research and Innovation Agenda (SRIA), Challenge Areas, Priority Topics.
{"title":"MEASURING PROGRESS TOWARDS OCEAN ENERGY COMMERCIALISATION","authors":"PABLO RUIZ MINGUELA, JOSE LUIS VILLATE MARTINEZ, PUI WAH WONG, DONALD NOBLE, HENRY FORBES JEFFRE","doi":"10.6036/11059","DOIUrl":"https://doi.org/10.6036/11059","url":null,"abstract":"The EU aims to achieve climate neutrality by 2050 through the European Green Deal and its commitment to global climate action under the Paris Agreement. Transitioning to a carbon-neutral society requires increasing the share of renewable energy across different sectors. Ocean energy can contribute to job creation, economic revitalization, and grid balancing. However, public funding and financial instruments are necessary to reduce risks, advance technology, and to support demonstration and pre-commercial projects in the ocean energy sector. The SEETIP Ocean project, supported by the European Commission through the Horizon Europe framework programme, aims to accelerate the deployment of the ocean energy sector by promoting collaboration among stakeholders. As part of the project, an analysis is being conducted to assess technological progress, identify implementation gaps, and update the Strategic Research and Innovation Agenda (SRIA) for Ocean Energy. The analysis reveals reasonable progress in research and innovation, albeit with smaller project sizes compared to current SRIA recommendations, and the need for increased support from national programmes. Some topics have been covered more than proposed funding and number of projects, while others not at all. This highlights the need for effective communication and collaboration between both the European Commission and Member State funders and their programmes. In addition, public support and funding is crucial to lower investment risks and propel ocean energy technologies towards commercialisation. With appropriate funding and policy support, the European ocean energy sector could strengthen its position as a worldwide leader and harness the socio-economic benefits from the sector. Keywords: Climate neutrality, Ocean energy, Funding, Strategic Research and Innovation Agenda (SRIA), Challenge Areas, Priority Topics.","PeriodicalId":11386,"journal":{"name":"Dyna","volume":"15 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135215927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
MARIA DOLORES HIDALGO BARRIO, ENRIQUE PEREZ ZAPATERO, JESUS MARIA MARTIN MARROQUIN
Dark fermentation appears as a promising strategy in the new energy landscape, as it enables the production of biohydrogen using a wide range of biomass substrates, thus also contributing to waste management. However, this process exhibits lower yields compared to conventional thermochemical processes for H2 production, such as reforming. To overcome this limitation, the use of additives has been explored to enhance microbial activity and increase dark fermentation yields. However, the application of additives remains limited in practice. This study aims to address this gap by examining the effects of three types of additives (zero-valent iron, activated carbon, and hydrochar) on dark fermentation and hydrogen generation. The results reveal that hydrochar shows the most promising outcomes, increasing H2 production by 20.3%, with the highest biohydrogen yield at 92 mLH2/g-glucose. Volatile fatty acid analysis reveals that butyric and acetic pathways are utilized for H2 production in this case. It is also important to consider the alkalinity of the feedstock, as high levels can increase the pH in the medium and promote methane (CH4) production as the main fermentation product instead of H2. When this occurs, Fe(0) NPs appear to be the additive that most favors methane generation, resulting in a 6.1% higher production compared to the control experiment. This confirms the interest in the use of certain additives in fermentative processes. Keywords: Activated carbon, Addition, Dark fermentation, Fe(0) nanoparticles, Green hydrogen, Hydrochar, VFA.
{"title":"EXPLORING ADDITIVES TO ENHANCE FERMENTATIVE BIOHYDROGEN PRODUCTION","authors":"MARIA DOLORES HIDALGO BARRIO, ENRIQUE PEREZ ZAPATERO, JESUS MARIA MARTIN MARROQUIN","doi":"10.6036/11011","DOIUrl":"https://doi.org/10.6036/11011","url":null,"abstract":"Dark fermentation appears as a promising strategy in the new energy landscape, as it enables the production of biohydrogen using a wide range of biomass substrates, thus also contributing to waste management. However, this process exhibits lower yields compared to conventional thermochemical processes for H2 production, such as reforming. To overcome this limitation, the use of additives has been explored to enhance microbial activity and increase dark fermentation yields. However, the application of additives remains limited in practice. This study aims to address this gap by examining the effects of three types of additives (zero-valent iron, activated carbon, and hydrochar) on dark fermentation and hydrogen generation. The results reveal that hydrochar shows the most promising outcomes, increasing H2 production by 20.3%, with the highest biohydrogen yield at 92 mLH2/g-glucose. Volatile fatty acid analysis reveals that butyric and acetic pathways are utilized for H2 production in this case. It is also important to consider the alkalinity of the feedstock, as high levels can increase the pH in the medium and promote methane (CH4) production as the main fermentation product instead of H2. When this occurs, Fe(0) NPs appear to be the additive that most favors methane generation, resulting in a 6.1% higher production compared to the control experiment. This confirms the interest in the use of certain additives in fermentative processes. Keywords: Activated carbon, Addition, Dark fermentation, Fe(0) nanoparticles, Green hydrogen, Hydrochar, VFA.","PeriodicalId":11386,"journal":{"name":"Dyna","volume":"364 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135216719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
DANIEL BIELSA LINAZA, Abdessamad Faik, PEDRO LUIS ARIAS ERGUETA
Thermal energy storage, known as TES, allows detaching the energy production from the demand. TES is especially appropriate to be used in concentrated solar power plants, where the energy is produced as heat. TES systems can be classified in three different technologies: sensible heat storage, latent heat storage and chemical heat storage. Currently, commercially available TES systems are based on sensible heat storage using molten salt stored in a double tank system. The other two technologies present a theoretical higher energy density but they are not mature yet to be commercially implemented. Among these systems, thermochemical heat storage has attracted the attention of the research community during the last decades and start to present promising results at relevant scale. The extremely high energy storage density and operation temperatures opens the door to a powerful and dynamic way of storing thermal energy for the plants of the future operating at higher temperatures. In this paper a review of the main experimental results concerning thermochemical energy storage for concentrated solar power plants is presented. A comprehensive review of metal oxides and redox reactions has been included, considering that the operation temperatures and the possibility of using natural air as the heat transfer fluid turns this approach into a very interesting solution for a new generation of concentrated solar power plants. Keywords: ?Thermal energy storage, Concentrated Solar Power, Thermochemical heat storage, Redox
{"title":"THERMOCHEMICAL ENERGY STORAGE AT HIGH TEMPERATURE FOR CONCENTRATED SOLAR POWER PLANTS, A CRITICAL REVIEW","authors":"DANIEL BIELSA LINAZA, Abdessamad Faik, PEDRO LUIS ARIAS ERGUETA","doi":"10.6036/10934","DOIUrl":"https://doi.org/10.6036/10934","url":null,"abstract":"Thermal energy storage, known as TES, allows detaching the energy production from the demand. TES is especially appropriate to be used in concentrated solar power plants, where the energy is produced as heat. TES systems can be classified in three different technologies: sensible heat storage, latent heat storage and chemical heat storage. Currently, commercially available TES systems are based on sensible heat storage using molten salt stored in a double tank system. The other two technologies present a theoretical higher energy density but they are not mature yet to be commercially implemented. Among these systems, thermochemical heat storage has attracted the attention of the research community during the last decades and start to present promising results at relevant scale. The extremely high energy storage density and operation temperatures opens the door to a powerful and dynamic way of storing thermal energy for the plants of the future operating at higher temperatures. In this paper a review of the main experimental results concerning thermochemical energy storage for concentrated solar power plants is presented. A comprehensive review of metal oxides and redox reactions has been included, considering that the operation temperatures and the possibility of using natural air as the heat transfer fluid turns this approach into a very interesting solution for a new generation of concentrated solar power plants. Keywords: ?Thermal energy storage, Concentrated Solar Power, Thermochemical heat storage, Redox","PeriodicalId":11386,"journal":{"name":"Dyna","volume":"8 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135217008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yasser Azan Basallo, FRANCISCO ANTONIO HORTA RANGEL, JULIO CESAR LEAL VACA, JOSE MIGUEL SORIA UGALDE, Jorge Luis Morales Martínez
This contribution addresses drawbacks highlighted in the literature such as the disadvantage of using the concept of cylindrical capillary bundle (CCP) with uniform sizes to represent the geometry of the pore space and the lack in the consideration of surface forces and the non-inclusion of water retention in the angular pore cavities, which often leads to underestimation of the dry range of the CCRAS.
{"title":"PROPOSED MODIFICATION TO THE ARYA-PARIS MODEL FOR THE ESTIMATION OF THE SOIL WATER RETENTION CURVE","authors":"Yasser Azan Basallo, FRANCISCO ANTONIO HORTA RANGEL, JULIO CESAR LEAL VACA, JOSE MIGUEL SORIA UGALDE, Jorge Luis Morales Martínez","doi":"10.6036/10949","DOIUrl":"https://doi.org/10.6036/10949","url":null,"abstract":"This contribution addresses drawbacks highlighted in the literature such as the disadvantage of using the concept of cylindrical capillary bundle (CCP) with uniform sizes to represent the geometry of the pore space and the lack in the consideration of surface forces and the non-inclusion of water retention in the angular pore cavities, which often leads to underestimation of the dry range of the CCRAS.","PeriodicalId":11386,"journal":{"name":"Dyna","volume":"46 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135166496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Electricity sector, in global terms, has undergone significant and severe structural changes, with the aim of allowing free choice for energy consumers and achieving greater competition between markets. In this regard, quarter-hourly deviations are promoted by European regulations for the purpose of energy market management. The EU requires electricity suppliers to provide data on their energy production and consumption every 15 minutes. This requirement has been designed to promote transparency and competition in the energy market. Until now, Spain has used an hourly deviation settlement system, so the implementation of this new model will entail a complex and gradual change. In fact, the introduction of a quarter hourly market would enable consumers to access more frequent pricing information, which would help them make more informed decisions about their energy usage. This would also create opportunities for more sophisticated demand-side management strategies, such as real-time pricing and automated demand response. Although the integration of the electrical sector is an important aspect of the EU's broader efforts to create a single energy market and reduce carbon emissions, there are still significant challenges to be overcome, such as the need to improve grid infrastructure, ensure the security of supply, and harmonize regulatory frameworks across member states. The main objective of this article is to study the impact that the implementation of the new quarter-hourly model will have in a wind farm, given the intrinsic variability of this energy source and the current reliability of prediction systems. With continued advancements in technology and improved forecasting techniques that allow suppliers to adjust their operations in real-time based on changing conditions, it is likely that the uncertainty of unmanageable units will continue to decrease over time, making them an even more reliable and efficient source of clean energy in the future. Keywords: Quarter-hourly model, imbalances, electricity market, wind energy, hourly deviation settlement system
{"title":"IMPACT OF THE IMPLEMENTATION OF THE NEW QUARTER-HOURLY MODEL ON A WIND FARM IN THE PENINSULAR ELECTRICITY SYSTEM","authors":"RAQUEL CARO CARRETERO, FERNANDO GARCIA JIMENEZ","doi":"10.6036/10882","DOIUrl":"https://doi.org/10.6036/10882","url":null,"abstract":"Electricity sector, in global terms, has undergone significant and severe structural changes, with the aim of allowing free choice for energy consumers and achieving greater competition between markets. In this regard, quarter-hourly deviations are promoted by European regulations for the purpose of energy market management. The EU requires electricity suppliers to provide data on their energy production and consumption every 15 minutes. This requirement has been designed to promote transparency and competition in the energy market. Until now, Spain has used an hourly deviation settlement system, so the implementation of this new model will entail a complex and gradual change. In fact, the introduction of a quarter hourly market would enable consumers to access more frequent pricing information, which would help them make more informed decisions about their energy usage. This would also create opportunities for more sophisticated demand-side management strategies, such as real-time pricing and automated demand response. Although the integration of the electrical sector is an important aspect of the EU's broader efforts to create a single energy market and reduce carbon emissions, there are still significant challenges to be overcome, such as the need to improve grid infrastructure, ensure the security of supply, and harmonize regulatory frameworks across member states. The main objective of this article is to study the impact that the implementation of the new quarter-hourly model will have in a wind farm, given the intrinsic variability of this energy source and the current reliability of prediction systems. With continued advancements in technology and improved forecasting techniques that allow suppliers to adjust their operations in real-time based on changing conditions, it is likely that the uncertainty of unmanageable units will continue to decrease over time, making them an even more reliable and efficient source of clean energy in the future. Keywords: Quarter-hourly model, imbalances, electricity market, wind energy, hourly deviation settlement system","PeriodicalId":11386,"journal":{"name":"Dyna","volume":"8 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135166013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
LUCAS RODOLFO MARTINEZ, Josefine Axelsson, DAVID RIBO PEREZ, Tomas Gómez Navarro
This article proposes a methodology for the design of off-grid electricity systems based on renewable energies in rural of developing countries communities that never consumed electricity. The state of the art is reviewed and the methodology aggregates proposals from multiple previous works. It is divided into phases: Data Collection, Assessment, Planning/Modelling and Execution. The main actors and their responsibilities are explained. Rarely considered stages such as co-design with the beneficiary community or the creation of a renewable energy community are included. Their necessity for the implementation and success of these projects with social, economic and environmental objectives is discussed. The application of the methodology is illustrated with first results from a case study in Mumbeji, Zambia, Africa. The project stakeholders, the results of demand curve estimation, power generation curves, available resources, engineering costs and the modelling of the microgrid design are presented. Keywords: Hybrid renewable energy systems; Rural electrification; Off-grid rural communities, Energy simulation.
{"title":"DESIGN METHODOLOGY OF A HYBRID RENEWABLE ENERGY MICROGRID FOR AN ISOLATED RURAL COMMUNITY. APPLICATION CASE IN ZAMBIA","authors":"LUCAS RODOLFO MARTINEZ, Josefine Axelsson, DAVID RIBO PEREZ, Tomas Gómez Navarro","doi":"10.6036/10785","DOIUrl":"https://doi.org/10.6036/10785","url":null,"abstract":"This article proposes a methodology for the design of off-grid electricity systems based on renewable energies in rural of developing countries communities that never consumed electricity. The state of the art is reviewed and the methodology aggregates proposals from multiple previous works. It is divided into phases: Data Collection, Assessment, Planning/Modelling and Execution. The main actors and their responsibilities are explained. Rarely considered stages such as co-design with the beneficiary community or the creation of a renewable energy community are included. Their necessity for the implementation and success of these projects with social, economic and environmental objectives is discussed. The application of the methodology is illustrated with first results from a case study in Mumbeji, Zambia, Africa. The project stakeholders, the results of demand curve estimation, power generation curves, available resources, engineering costs and the modelling of the microgrid design are presented. Keywords: Hybrid renewable energy systems; Rural electrification; Off-grid rural communities, Energy simulation.","PeriodicalId":11386,"journal":{"name":"Dyna","volume":"363 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135216429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Esther M. Sánchez Sánchez, SANTIAGO LOPEZ GARCIA, JOSEBA DE LA TORRE CAMPOS
The purpose of this article is to explore the origins of industrial nuclear fuel fabrication in Spain. Founded in 1972 for centrally managing the nuclear fuel cycle, the Empresa Nacional del Uranio SA (ENUSA) agreed with the American multinationals Westinghouse and General Electric the assignment of licenses and technical assistance for manufacturing fuel assemblies for light water reactors (in its two variants, PWR and BWR). This is the only phase of the uranium cycle which ENUSA keeps today (Juzbado plant, Salamanca). In spite of the current energy crisis and the uncertainty of the nuclear option, the company has celebrated its 50th anniversary in a moment of success, as a result of its important export and technological activity in the nuclear, logistic and environmental fields.
{"title":"ENUSA AND ORIGINS OF NUCLEAR FUEL MANUFACTURING IN SPAIN","authors":"Esther M. Sánchez Sánchez, SANTIAGO LOPEZ GARCIA, JOSEBA DE LA TORRE CAMPOS","doi":"10.6036/10843","DOIUrl":"https://doi.org/10.6036/10843","url":null,"abstract":"The purpose of this article is to explore the origins of industrial nuclear fuel fabrication in Spain. Founded in 1972 for centrally managing the nuclear fuel cycle, the Empresa Nacional del Uranio SA (ENUSA) agreed with the American multinationals Westinghouse and General Electric the assignment of licenses and technical assistance for manufacturing fuel assemblies for light water reactors (in its two variants, PWR and BWR). This is the only phase of the uranium cycle which ENUSA keeps today (Juzbado plant, Salamanca). In spite of the current energy crisis and the uncertainty of the nuclear option, the company has celebrated its 50th anniversary in a moment of success, as a result of its important export and technological activity in the nuclear, logistic and environmental fields.","PeriodicalId":11386,"journal":{"name":"Dyna","volume":"72 6-7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135217453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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