Browsing by Issue Date, starting with "2017"
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- O projeto OffhorePlan : planeamento da instalação de energias renováveis offshore em PortugalPublication . Simões, Teresa; Garcia, Geuffer; Justino, Paulo Alexandre; Estanqueiro, AnaRESUMO: O projeto OffshorePlan - Planeamento da instalação de energias renováveis offshore em Portugal – financiado pelo programa POSEUR (Programa Operacional Sustentabilidade e Eficiência no Uso de Recursos) do Portugal 2020 – surgiu na sequência da identificação de um conjunto de constrangimentos associados à implementação e disseminação das tecnologias de aproveitamento de energia para a produção de eletricidade em ambiente marinho. As energias renováveis de exploração marinha apresentam um grande potencial de exploração em Portugal, por um lado devido à situação geográfica do país, com a sua área extensa de costa e uma das maiores zonas económicas exclusivas (ZEE) – e por outro, pelos indicadores de existência de elevado recurso energético, cujo estudo tem vindo a ser efetuado nos últimos anos. Não obstante esses estudos persistem várias barreiras a ultrapassar para a disseminação das tecnologias de energias renováveis com maior aplicabilidade em Portugal – eólica offshore e ondas – as quais se prendem, essencialmente, com: i) mapeamento do recurso energético com precisão e sua validação experimental; ii) escassez de serviços e meios para ações de instalação e manutenção destes sistemas; iii) capacidade de receção da rede elétrica; e iv) impacto socioeconómico, entre outras.
- The entry strategies of research-based firms in the transition to a sustainable energy systemPublication . Fontes, Margarida; Sousa, CristinaABSTRACT: The paper discusses the entry strategies adopted by research-based firms introducing advanced renewable energy technologies (RET) in the electricity production sector and their interactions with regime incumbents. Drawing on the sustainability transitions and the strategic management of technology literatures we build an analytical framework and apply it, in an exploratory way, to firms operating in two very diverse energy niches – wind and wave energy – using in depth-case studies. The results suggest that new entrants tend to depend on complementary assets possessed by incumbents, but have conditions to protect their technologies from expropriation; and that the technologies are relevant for (at least some) incumbents, which show interest on them, or are directly involved in their development/use. This is, in most cases, conducive to ‘cooperation’ strategies, which assume different forms according to the stage of development of the technology and its proximity to incumbents’ competences and assets.
- Regional variation of academic spinoffs formationPublication . Conceicao, Oscarina; Faria, Ana Paula; Fontes, MargaridaABSTRACT: Using a self-collected longitudinal dataset that comprehends the population of academic spinoffs created in Portugal from 1995 until 2007 we investigate to what extent these firms are geographically clustered and the determinants of their geographical distribution at the time of their formation. We focus on university and agglomeration economies-related mechanisms at the municipality level. Our results show that overall academic spinoffs do not exhibit a tendency to cluster, nevertheless some local clusters do exist. Additionally, our findings show that the presence of university incubators and/or university research parks is the most relevant university-related mechanism, whereas regarding agglomeration economies all seem to be important to explain academic spinoffs distribution across municipalities.
- System transformation for growth and sustainability : ocean energy in PortugalPublication . Fontes, Margarida; Karadzic, Vanja; Pereira, Tiago SantosABSTRACT: This Report presents the results of research conducted for the OECD Project on Systems Transformation, undertaken in the framework of the Working Party on Innovation and Technology Policy (TIP). It conveys the results of the Portuguese Case Study. The OECD project on Systems Transformation (2015-2016) corresponded to the second phase of the System Innovation Project (https://www.innovationpolicyplatform.org/systeminnovation-oecd-project) whose objective was to help policy makers re-think innovation policies in the context of sustainability and green growth. It built on and extended the previous work, by applying the policy lessons learned to concrete cases of transitions in the field of knowledge based industrial production and in the area of sustainability. The goal of the project was to study advanced practices in policy support for the promotion of emerging industries and sustainable (green) innovations in OECD economies, focusing on the role of selected policy tools, such as cluster policies, demonstrators, technology roadmapping, and smart regulation. The project aimed at identifying good practices for designing these innovation policy instruments, based on a series of comparative case studies. The Portuguese Case Study addressed the role of systemic policies in the construction of an Ocean Energy System, i.e. a system that originates from the development and diffusion of renewable energies based on the ocean, providing an opportunity to examine how sustainability and structural change goals can be combined.
- The CONVERTE project: biomass potential for energyPublication . Abreu, Mariana; Moura, Patrícia; Reis, Alberto; Eusebio, Ana; Oliveira, Ana Cristina; Pinto, Filomena; Alexandre, Jorge; Silva, Luís; Trancoso, Maria Ascensão; Gírio, FranciscoABSTRACT: Climate change caused by the excessive use of non-renewable resources as a means of supporting the current society demands is forcing the development of circular economy models and social, economic and environmental balanced solutions. In Portugal, in recent decades, important progresses have been made on waste resources management practices in line with the objectives and directives of the European Union. The urban and industrial wastes are, to a certain extent, a case of success since the effort developed has created tools for the prevention, control, recovery and recycling of a considerable percentage of the generated amounts. However, this effort has not yet reached its full potential, and there are still diverse underexplored issues, such as a systematic assessment of the waste biomass suitability for specific energy conversion technologies, and the promotion of non-food-competing energy crops on marginal lands. CONVERTE will identify and quantify the different waste biomass types generated in the Portuguese continental territory, and shall develop a biomass-driven energy matrix that correlates the biomass types with eight technological value chains for heat, power and/or advanced biofuels as main products. This is expected to impact positively on the national energy security and to reduce the overall Portuguese greenhouse gas (GHG) emissions, namely in the transport sector, contributing to increase the country sustainability score.
- Cadomian magmatism and metamorphism at the Ossa Morena/Central Iberian zone boundary, Iberian Massif, Central Portugal: Geochemistry and P–T constraints of the Sardoal ComplexPublication . Henriques, S.B.A.; Neiva, A.M.R.; Tajcmanová, L.; Dunning, G. R.ABSTRACT: A well preserved Cadomian basement is exposed in the Iberian Massif, Central Portugal, at the Ossa Morena/Central Iberian zone boundary, which allows the determination of reliable geochemical data. A sequence of Cadomian and Variscan magmatic and tectonometamorphic events has been already described for this area and are documented in other areas of the Avalonian-Cadomian orogen. However, the geochemical information concerning the Cadomian basement for this area is still limited. We present whole rock geochemical and oxygen isotopic information to characterize the igneous protoliths of the Sardoal Complex, located within the Tomar-Badajoz-Cordoba Shear Zone, and identify their tectonic setting. We use detailed petrography, mineral chemistry and P-T data to characterize the final Cadomian tectonometamorphic event. The Sardoal Complex contains orthogneiss and amphibolite units. The protoliths of the orthogneiss are calc-alkaline magmas of acid composition and peraluminous character that were generated in an active continental margin in three different stages (ca. 692 Ma, ca. 569 Ma and ca. 548 Ma). The most significant processes in their petrogenesis are the partial melting of old metasedimentary and meta-igneous crust at different crustal levels and the crystal fractionation of plagioclase, alkali feldspars, apatite, zircon and Fe-Ti oxides. The protoliths of the amphibolite, older than ca. 540 Ma, are tholeiitic and calc-alkaline magmas of basic composition that display N-,T- and E-MORB affinities. They were generated in an active continental margin. Crustal contamination and fractional crystallization of hornblende and diopside were involved in their petrogenesis. However, the fractional crystallization was not significant. The magmatic activity recorded in the Sardoal Complex indicates the existence of a long-lived continental arc (ca. 692-540 Ma) with coeval felsic and mafic magmatism. The final stage of the Cadomian metamorphism is usually represented in other areas of the Cadomian basement as a LP-HT metamorphic event. However, the P-T data obtained by thermodynamic modelling indicates medium pressure/high temperature conditions at ca. 540 Ma. These data suggest that the Sardoal Complex represents a deeper level of the exhumed Cadomian basement where the final stage of the Cadomian metamorphism was recorded.
- Sentinel 2 : contributo para o conhecimento geológico e recursos minerais [Comunicação oral]Publication . Quental, Lídia; de Oliveira, Daniel Pipa Soares; Dias, Ruben Pereira; Batista, Maria Joao; Matos, João Xavier; Filipe, AugustoRESUMO: As imagens Sentinel 2 são processadas com o objetivo de incrementar o conhecimento geológico e enquadramento de ocorrências minerais, nomeadamente, para suporte na definição de limites litológicos e compreensão de modelos genéticos. Exemplifica-se a N e S de Portugal o contributo da informação espetral.
- NewSOL Project: Thermal calculations for TES tank predesign : EMSP case-studyPublication . Azevedo, PedroABSTRACT: LNEG is one of the partners involved in Task 2.2 “Predesign of tank and module system architectures”. The present document reports work developed by LNEG for partial fulfillment of deliverable D2.1 “Preliminary selection of materials compositions and TES system predesign”. Preliminary data were already published in Azevedo (2017) and on D2.1 “Preliminary selection of materials compositions and TES system predesign”. The present document presents the efficiency approach and the methodology for heat losses and temperature inside the walls calculations. Additionally, the EMSP is hereby described as a case-study and its dimensions, materials, and the aforementioned heat losses and temperature inside the walls, were estimated.
- Aplicação da Diretiva INSPIRE à cartografia geológica : entendimento entre Portugal e EspanhaPublication . Pereira, Aurete; Mancebo, Maria; Patinha, Pedro; Mink, Sandra; Luís, Gabriel; Sanabria, Margarita; Robador, Alejandro; Oliveira, José Tomás; Hernandez, RománRESUMO: Este trabalho pretende divulgar as ações desenvolvidas no âmbito da harmonização de dados geológicos pelos Serviços Geológicos de Espanha e Portugal, respetivamente, IGME (Instituto Geológico y Mineiro de España) e LNEG (Laboratório Nacional de Energia e Geologia, I.P.). Nesta fase do projeto, que teve início em Abril de 2017, dá-se especial atenção à forma como as duas instituições se organizaram com vista a atingir o objetivo final: A disponibilização de serviços de mapas OGC INSPIRE compliant. O ponto de partida foi a publicação do novo Mapa Geológico de Espanha e Portugal à escala 1:1M, em 2015. As duas instituições têm implementado num SIG, em software ArcGIS, a informação de referência deste mapa: os mapas geológicos de cada país, à escala 1:1 000 000. A partir deles o trabalho de harmonização INSPIRE dos dados foi efetuado em paralelo com abordagens e tecnologias distintas. Por um lado o LNEG adotou a Geodatabase template INSPIRE incluída no ArcGis for INSPIRE, como modelo de dados, não tendo utilizado nenhuma ferramenta Extract Transform Load (ETL) no processo de harmonização de dados. Esta base de dados foi implementada em SQL Server e os serviços de dados criados com o ArcGIS Server e ArcGIS for INSPIRE. O IGME optou pela implementação do esquema UML INSPIRE numa base de dados espacial em SQL Server e publicou os serviços WMS e WFS com recurso ao Tomcat Apache server e Geoserver. Para realizar a transformação dos dados foram utilizadas principalmente duas ferramentas em função da complexidade das transformações em causa: o FME e o HALE. O principal desafio deste projeto foi o de estabelecer uma metodologia de trabalho que permitisse a integração e harmonização, numa única Base de Dados, de toda a informação de Espanha e de Portugal e a posterior criação e validação dos serviços WMS e WFS, para disponibilização nos GeoPortais institucionais e para reportar à INSPIRE. Adicionalmente foi interessante avaliar os resultados obtidos a partir das diferentes abordagens tecnológicas utilizadas. Outras questões abordadas neste projeto são: a definição da área de trabalho (Continente e Ilhas mais o Offshore); os idiomas (Espanhol, Português e Inglês); e o sistema de referência de coordenadas adotado (EPSG 4258) devido à inclusão das ilhas portuguesas (Açores e Madeira).