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Making an oxygen steel factory (Basic Oxygen Furnace - BOF) more efficient focuses on maximizing energy recovery, optimizing the oxygen blow process, reducing fossil fuel reliance, and enhancing material recycling. Modern advancements allow for significant reductions in carbon footprint and operational costs. The BOF is highly energy-efficient in terms of process heat, consuming only about 1.2 GJ per tonne of crude steel, as it relies on the exothermic oxidation of impurities in hot metal. While the overall BF-BOF...

Making the automotive greener has led to a continuous intensification of studies for alternative technologies in road transport. The most promising of technology is based on electric propulsion. But beside many advantages, the electric vehicles have some disadvantages compared to conventional vehicles: limited driving range, long charging times, and insufficient charging infrastructure in some areas. Additionally, battery degradation over time (especially due to operation in extreme weather conditions in winter an...

Complex energy systems, in the current period of transition to a climate-neutral society, comprise two fully functional subsystems, that of fossil fuel-based production and that of production from renewable energy sources. The functional coexistence of these subsystems is achieved due to the capture of the CO2 component from flue gases through the energy vector represented by green H2. This takes on both the role of energy accumulation and the role of transforming the CO2 component, captured during the combustion ...

The paper presents the possibility of floating photovoltaic farms on the reservoirs of the Olt river in Romania. For the analysis, a database with the solar irradiance evolution for one year in the four possible locations was created, using the PVGIS-SARAH2 database. The locations were chosen according to the surface area of the reservoir, geographical position, and possibility of connection to the national energy system. After the analysis, it was observed that during the cold season, the solar irradiance is high...