Repositório do LNEG

National Laboratory of Energy and Geology Scientific Repository

Welcome to LNEG’s Scientific Repository

The LNEG’s Scientific Repository intends to preserve, disseminate and give access to LNEG's scientific production in digital format.

The objectives of the Repository are: to increase the visibility and impact of the research carried out at LNEG, to improve internal and external communication and to preserve the institution's intellectual memory.

Email repositorio@lneg.pt

Recent Submissions

Mapeamento “áreas menos sensíveis” / GTAER [Comunicação oral]

Publication . Simoes, Sofia; Barbosa, Juliana; Oliveira, Paula; Simões, Teresa; Quental, Lídia; Costa, Paula; Picado, Ana; Catarino, Justina; Patinha, Pedro

2024-10Conference object

Open access

Footprint analysis of circular economy practices in the steel industry [Resumo]

Publication . Sameer, Husam; Knoblauch, Lukas; Dürr, Hans H.; Flörke, Martina; Ambaye, Teklit G.; Lima, Ana Teresa; Mao, Ruichang; Lu, Zheng; Kunther, Wolfgang; Slabik, Simon; Hafner, Annette; Aloini, Davide; Zerbino, Pierluigi; Mabroum, Safaa; Ram, V.; Barbosa, Juliana; Simoes, Sofia; Genovese, Andrea

ABSTRACT: Steel is one of the dominant materials in the building industry, however, substantial environmental impacts occur in its supply chain. We evaluate the environmental performance of different steel production scenarios at the macro level, taking into account circular economy practices. Using the dynamic life cycle assessment methodology, different scenarios are assessed for the time horizon 2015 to 2070. The environmental footprints are quantified in terms of primary energy, greenhouse gas (GHG) emissions, material, land and water footprints. Forecasts regarding the availability of end-of-life steel and future demand in European and global contexts are considered.

2024-11Conference object

Open access

How far can circular economy practices contribute to a carbon-neutral Europe? The case of flat glass production in the construction sector [Resumo]

Publication . Barbosa, Juliana; Simoes, Sofia; Aloini, Davide; Zerbino, Pierluigi; Mabroum, Safaa; Montalbano, Giammarco; Lima, Ana Teresa

ABSTRACT: The construction sector heavily relies on non-renewable resources for energy and materials. Addressing this, Circular Economy (CE) is frequently suggested as a means to foster sustainable growth while reducing global emissions. Yet, the actual impact of CE in the long term is still uncertain due to limited empirical evidence and various factors that may hinder its widespread adoption. Indeed, the transition to CE might necessitate a substantial transformation in production capabilities, supply chain modifications, the phasing out of existing capital, and investment in new technologies and facilities.

2024-11Conference object

Open access

Main CE practices in the Construction industry for the six carbon-intensive materials [Resumo]

Publication . Lima, Ana Teresa; Kirkelund, Gunvor Marie; Lu, Zheng; Mao, Ruichang; Kunther, Wolfgang; Rode, Carsten; Ambaye, Teklit G.; Slabik, Simon; Hafner, Annette; Sameer, Husam; Dürr, Hans H.; Flörke, Martina; Lowe, Benjamin H.; Aloini, Davide; Zerbino, Pierluigi; Simoes, Sofia

2024-11Conference object

Open access

New Greenhouse Gas simulation and mapping tools to support local carbon neutrality agendas: application to the city of Almada

Publication . Amorim, Filipa; Simoes, Sofia; Barbosa, Juliana; Oliveira, Paula; Trindade, Paula; Aelenei, Laura Elena; Catarino, Justina; Viana, Susana; Figueiredo, Leonor

ABSTRACT: The aim of this work is to develop three innovative decision support tools: (1) a scenario tool that enables users to interactively design scenarios of activity variables that support decarbonisation trajectories on a local scale; (2) a mitigation tool that translates scenarios into greenhouse gas (GHG) emissions, taking into account the identification and prioritisation of the most innovative, cost-effective mitigation options (technological and behavioural) for Portuguese municipalities; and (3) a mapping tool to identify GHG emissions ‘hot spots’ on a local scale. In the first phase, these tools are applied and tested for the case study of the city of Almada in support of the ‘Agenda for a Carbon Neutral Almada by 2050’. These tools will also contribute to the training and involvement of local stakeholders, to improve the design of local GHG emissions mitigation strategies and roadmap. In the second phase, these tools will be further developed so they can be used in other Portuguese municipalities.

2024-09Conference object

Open access