G. (Georgios) Pallas MSc
- PhD researcher
- critical metals
- dynamic stock modelling
- emerging technologies
- life cycle sustainability analysis
- waste input-output modeling
|Telephone number:||+31 (0)71 527 8097|
|Faculty / Department:||Wiskunde en Natuurwetenschappen, Centrum voor Milieuwetenschappen Leiden, CML/Conservation Biology|
Van Steenis gebouw
2333 CC Leiden
Room number A3.18
Georgios graduated from the Norwegian University of Science and Technology (NTNU) in 2015, where he obtained his MSc degree in Industrial Ecology (Environmental and Energy Systems Analysis). He also holds a graduate degree in Computer and Communication Engineering. His experience includes prospective LCA (in early stages of R&D), nanotechnology, hybridization of IO tables, working with IO tables in the byproduct technology construct (system expansion), dynamic stock modeling, waste-IO modelling, linking dynamic stock models to WIO models, critical metals, greenhouse gas emissions from metal production and recycling and data modeling and analysis. He uses Python and Matlab programming languages for analysis and modeling.
His MSc thesis was to assess the environmental impacts from the production and recycling (steel, aluminum, copper) of the global passenger vehicle fleet until 2050, by linking together dynamic stock models and the waste-input-output model. Furthermore, he conducted his MSc project in the potential recovery of critical metals from household appliances. Lastly, he has worked as research assistant in the EU-DESIRE project in the group of prof. Edgar Hertwich, compiling multi-layer process inventories for producing and recycling of critical metals (focus on steel alloying elements in the car production).
Georgios’ research interests include the development of methodologies for early application of LCA in nanotechnologies and emerging technologies. Furthermore, the combination of different industrial ecology tools (LCA, MFA, IO, Dynamic Modeling) in more comprehensive, holistic tools that can support the decision making process.
Georgios’ PhD topic includes Life Cycle Assessment, Life Cycle Costing and Risk Assessment of Nanomaterials - Nanowires for Silicon-based Tandem Solar Cells.
The PhD is part of the EU Horizon2020 NanoTandem project. Research is done in collaboration with other partner institutions. Lund University, Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V., SOL Voltaics AB, Université Paris-Sud and IBM Research.
Nanowires are essential parts of high-performance solar cells, but despite efficient material use, they require energy-intensive production processes. Many challenges need to be addressed as numerous uncertainties exist regarding the impact of nanotechnologies on human health and the environment. System has to be scaled up from the R&D and Lab Scale to a future Commercial/Industrial scale of the technology. There are uncertainties in how production, maintenance and recycling processes will proceed in the future. In addition, uncertainties related with nanomaterials their release rates or their behavior after they have been discarded. The processes in the scaled up industrial system are significantly different from lab processes in terms of yields, efficiencies, by-products, equipment.
Prospective (or ex-ante) Life Cycle Assessment can become an important tool in identifying environmental challenges of emerging technologies. Environmental burdens and opportunities can be identified in an early stage of development; before large investments that put the technology into commercial production take place. Environmental opportunities can go alongside technology development.
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