Research; Services; Software; Applications; Members; Links; Laboratory of
Educational objectives of the LPVO and LPE are aimed at the transfer of
Modelling and simulations. Characterisation. PV system
University of Ljubljana,Faculty of Electrical EngineeringTrzaska cesta 25SI-1000 LjubljanaSlovenia
Univerza v LjubljaniKongresni trg 121000 Ljubljana
Globally, at least 16% of the world''s primary energy use is released as waste heat, with more than 63% of this heat occurring at very low temperatures below 100°C. Consequently, through this study, the authors highlight the critical need for more efficient use of waste heat, directly supporting several United Nations Sustainable Development Goals (SDGs).
Based on experimentally validated simulations in the COMSOL Multiphysics numerical simulation software, the authors found that a 16-stage system based on MD+STB has the potential to reduce capital costs by more than 70% per liter of produced water, making it more competitive with other modern solutions such as photovoltaics with reverse osmosis (PV+RO).
The research is extremely important, as water scarcity is becoming an increasingly serious global challenge, already affecting the lives of more than four billion people worldwide. Climate change further exacerbates water security, threatening both natural ecosystems and living conditions as well as economic development. Using renewable and sustainable energy sources, such as solar energy and waste heat, thus represents an effective solution for producing fresh water from existing terrestrial water sources.
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Integration of renewable energy sources for sustainable energy development in Slovenia till 2050
In the introductory part, an overview of energy use in Slovenia for the last typical year before the COVID-19, 2019, is discussed. Statistical data shows that Slovenia is at the level of primary energy still ~85 % dependent on fossil and nuclear energy sources with a total annual energy consumption of ~0.3 EJ (total world consumption ~606 EJ). One of the Slovenian peculiarities is that the share of energy consumption in the transport sector is still constantly increasing and is significantly higher than the average in the EU, while the share of energy consumption in industry is decreasing.
Figure 1: Final energy consumption by sectors in 2017
In the model of the development of energy consumption until 2050, three development scenarios were taken into account: reference scenario, evolutionary and developmental scenario with higher and lower economic growth. The reference scenario primarily considers only the change in the volume of production. In the evolutionary scenario, technological development, increasing energy efficiency, increasing the share of RES, etc. are considered. The development scenario is the most optimistic and represents the upper limit of technically feasible development. Consumption growth is predicted for the industry sector in all scenarios, while consumption reduction after 2030 is also predicted for the transport sector and other consumption in some scenarios.
Figure 2: Scenario forecasts of energy use in the transport sector until 2050
In the final part, Slovenian renewable energy sources, the actual situation, and the expected development until 2050 are discussed. Considering the natural conditions, photovoltaic power plants offer the greatest and still unexploited possibilities for development. But until the technology of seasonal storage at the level of a few TWh of electricity is developed, the abandonment of fossil and nuclear sources will be limited.
Link to the article: https://doi /10.1016/j.scs.2023.104668.
This solution is especially effective in regions with arid climates, where both energy and water are limited. By integrating these two essential processes, the project''s goal is to improve the quality of life for millions of people living in arid areas, such as Egypt, where 93% of the land is undeveloped, and access to clean water remains a critical issue.
The project, led by a team of researchers from Aswan University in Egypt and the University of Ljubljana as part of the EUTOPIA-SIF MSCA COFUND project, focuses on improving the efficiency and lifespan of concentrated photovoltaic systems in hot climates. The innovative system combines low-concentrated photovoltaic cells with a desalination unit that uses waste heat from air conditioning systems to power the desalination process. This approach significantly reduces energy loss, increases overall efficiency, and offers a practical solution for regions facing energy and water challenges.
About Ljubljana solar energy research and development
As the photovoltaic (PV) industry continues to evolve, advancements in Ljubljana solar energy research and development have become critical to optimizing the utilization of renewable energy sources. From innovative battery technologies to intelligent energy management systems, these solutions are transforming the way we store and distribute solar-generated electricity.
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By interacting with our online customer service, you'll gain a deep understanding of the various Ljubljana solar energy research and development featured in our extensive catalog, such as high-efficiency storage batteries and intelligent energy management systems, and how they work together to provide a stable and reliable power supply for your PV projects.
