@article{MTMT:34565515, title = {A digitális dekarbonizáció vizsgálata 3 esettanulmányon keresztül}, url = {https://m2.mtmt.hu/api/publication/34565515}, author = {Bodnárné Sándor, Renáta and Gröller, György and István, Zsolt and Kis, Norbert and Lovasné Avató, Judit and Mannheim, Viktória and Sasvári, Péter László and Sára, Balázs and Szalay, Zsuzsa and Szalainé Kaczkó, Orsolya Ibolya and Szilágyi, Artúr and Terjék, Anita and Szita, Klára (Tóthné) and Virókné Szilágyi, Krisztina}, journal-iso = {MAGYAR MINŐSÉG}, journal = {MAGYAR MINŐSÉG}, volume = {33}, unique-id = {34565515}, issn = {1416-9576}, keywords = {otthoni munkavégzés; dekarbonizációs kutatások; munkahelyi munkavégzés; LCC vizsgálat; dekarbonizációs utak}, year = {2024}, eissn = {1789-5510}, pages = {27-55}, orcid-numbers = {Mannheim, Viktória/0000-0002-5107-7652; Sasvári, Péter László/0000-0002-4031-4843; Szalay, Zsuzsa/0000-0001-6537-7982; Terjék, Anita/0000-0003-3464-785X} } @article{MTMT:31940945, title = {Az akkumulátoros elektromos személygépjárművek környezeti hatásainak értékelése a teljes életciklus figyelembevételével – hol az igazság? • Environmental Impact Evaluation of Battery Electric Passenger Vehicles Considering the Whole Life-cycle – Where Is the Truth?}, url = {https://m2.mtmt.hu/api/publication/31940945}, author = {Szilágyi, Artúr and Bereczky, Ákos}, doi = {10.1556/2065.182.2021.3.2}, journal-iso = {MAGYAR TUDOMÁNY}, journal = {MAGYAR TUDOMÁNY}, volume = {182}, unique-id = {31940945}, issn = {0025-0325}, abstract = {Összefoglalás Az utóbbi években az elektromobilitás fejlődéséről szóló hírek mellett számos olyan hír is megjelent, amely kétségbe vonja ennek a trendnek az üvegházhatású gázok (ÜHG-k) kibocsátását csökkentő hatását. A cikkünkben azt szeretnénk bemutatni, hogy az egymásnak sokszor ellentmondó hírek hátterében milyen számítások és gondolatmenetek állnak. Le kell szögezni, hogy a cikkben nem kívánunk állást foglalni egyik oldal mellett sem, de fontosnak tartjuk, hogy bizonyos fogalmak tisztázásra és az elektromobilitás ÜHG-kibocsátásának fontos részletei bemutatásra kerüljenek. Ennek keretén belül a technológia mai állását mutatjuk be, csak a főbb szegmensekre: a gyártásra, az energiatermelésre, -felhasználásra és -tárolásra fókuszálva az életciklus-elemzés segítségével. A változatos szakirodalmi adatokat felhasználva hét különböző szcenáriót mutatunk be a BEV-ek (Battery Electric Vehicle, akkumulátoros elektromos gépjárművek) környezeti hatásainak ellentmondásos megítélésének szemléltetésére. Abstract In recent months, as we hear about how well electromobility is evolving and how effectively it is spreading, there have been a number of reports questioning its reducing effect of greenhouse gases (GHGs), particularly CO2. In our article, we present the calculations behind these often contradictory news stories and the trains of thought from which conclusions are drawn. It should be noted that in the article we do not intend to take a position on either side, but we consider it important that certain concepts are clarified and that important details of electromobility CO2 emissions are presented. Within this framework, we present the current state of technology, focusing only on the main segments of manufacturing, energy production and storage, by presenting Life-Cycle Assessment (LCA). Using diverse literature data, we show seven different scenarios to illustrate the contradictory assessment of the environmental impacts of BEVs.}, year = {2021}, eissn = {1588-1245}, pages = {292-306}, orcid-numbers = {Bereczky, Ákos/0000-0003-0728-2445} } @article{MTMT:31522427, title = {Ecodesign of ground-mounted photovoltaic power plants: economic and environmental multi-objective optimization}, url = {https://m2.mtmt.hu/api/publication/31522427}, author = {Mayer, Martin János and Szilágyi, Artúr and Gróf, Gyula István}, doi = {10.1016/j.jclepro.2020.123934}, journal-iso = {J CLEAN PROD}, journal = {JOURNAL OF CLEANER PRODUCTION}, volume = {278}, unique-id = {31522427}, issn = {0959-6526}, year = {2021}, eissn = {1879-1786}, orcid-numbers = {Mayer, Martin János/0000-0001-5631-6117; Gróf, Gyula István/0000-0002-6359-768X} } @article{MTMT:32612310, title = {Csomagolóüvegek környezeti hatásvizsgálata}, url = {https://m2.mtmt.hu/api/publication/32612310}, author = {Bogóné Tóth, Zsuzsánna and Szilágyi, Artúr}, journal-iso = {ECO-MATRIX}, journal = {ECO-MATRIX: AZ LCA CENTER EGYESÜLET ONLINE FOLYÓIRATA}, volume = {8}, unique-id = {32612310}, issn = {2061-344X}, year = {2020}, pages = {22-30} } @article{MTMT:31306893, title = {Environmental and economic multi-objective optimization of a household level hybrid renewable energy system by genetic algorithm}, url = {https://m2.mtmt.hu/api/publication/31306893}, author = {Mayer, Martin János and Szilágyi, Artúr and Gróf, Gyula István}, doi = {10.1016/j.apenergy.2020.115058}, journal-iso = {APPL ENERG}, journal = {APPLIED ENERGY}, volume = {269}, unique-id = {31306893}, issn = {0306-2619}, abstract = {The rapid spread of renewables made it essential to design optimal hybrid renewable energy systems (HRES) with the distinctive economic and environmental impacts of each technology in mind. According to a comprehensive literature review, very few studies consider life-cycle environmental impacts in small-scale hybrid renewable energy system optimization. This paper aims to fill this gap by providing a multi-objective design framework for household-scale systems based on the technical modeling of several typical components. Solar photovoltaic, wind turbine, solar heat collector, heat pump, heat storage, battery, and as a novelty, heat insulation thickness are considered. Backup power is either drawn from the grid or produced by a diesel generator in grid-connected and off-grid scenarios, respectively. Single objective optimization using genetic algorithm resulted in the least cost and the least environmental footprint options in a case study of three different locations across Europe. Then, Pareto-optimal solutions between the two extremities were explored with a multi-objective genetic algorithm. Single objective results show substantial differences between environmental and economic optima, while multi-objective optimization proved to be an efficient tool to investigate the trade-offs between the two conflicting goals. Solar photovoltaics is proved to be the most competitive technology to reduce environmental impacts in the case of grid-connected systems. Off-grid systems, however, benefit the most from a balanced mix of different renewable energy sources. Life-cycle impacts in the design of systems involving renewables is proven to be relevant while potential applications of the framework are also revealed. Further research areas, as well as the limitations of the methodology are identified in the conclusion.}, keywords = {Multi-objective optimization; Life-cycle assessments; Renewable energy production; Genetic algorithm; Hybrid energy system}, year = {2020}, eissn = {1872-9118}, orcid-numbers = {Mayer, Martin János/0000-0001-5631-6117; Gróf, Gyula István/0000-0002-6359-768X} } @article{MTMT:31133589, title = {Estimating the environmental footprint of a grid-connected 20 MWp photovoltaic system}, url = {https://m2.mtmt.hu/api/publication/31133589}, author = {Szilágyi, Artúr and Gróf, Gyula István}, doi = {10.1016/j.solener.2020.01.028}, journal-iso = {SOL ENERGY}, journal = {SOLAR ENERGY}, volume = {197}, unique-id = {31133589}, issn = {0038-092X}, year = {2020}, eissn = {1471-1257}, pages = {491-497}, orcid-numbers = {Gróf, Gyula István/0000-0002-6359-768X} } @misc{MTMT:30930224, title = {XIV. LCA konferencia : Körforgásos megoldások, innováció - kihívások az életciklus-menedzsment területén. Program és rövid kivonatok}, url = {https://m2.mtmt.hu/api/publication/30930224}, editor = {Szilágyi, Artúr}, unique-id = {30930224}, year = {2019} } @inproceedings{MTMT:3342590, title = {Life-cycle nitrogen oxide emissions of the Hungarian electricity consumption mix}, url = {https://m2.mtmt.hu/api/publication/3342590}, author = {Szilágyi, Artúr}, booktitle = {13th International Conference on Heat Engines and Environmental Protection Proceedings}, unique-id = {3342590}, year = {2019}, pages = {201-206} } @inproceedings{MTMT:3339051, title = {Life-cycle assessment of renewable energy stored in methanol created from hydrogen and carbon dioxide}, url = {https://m2.mtmt.hu/api/publication/3339051}, author = {Petrov, István and Meggyes, Attila and Szilágyi, Artúr}, booktitle = {13th International Conference on Heat Engines and Environmental Protection Proceedings}, unique-id = {3339051}, year = {2019}, pages = {187-192}, orcid-numbers = {Meggyes, Attila/0000-0002-8265-255X} } @misc{MTMT:30604006, title = {XIII. LCA konferencia: Rezümékötet}, url = {https://m2.mtmt.hu/api/publication/30604006}, editor = {Szilágyi, Artúr}, unique-id = {30604006}, year = {2018} }