SCIDAR - A Digital Archive of the University of Kragujevac

Population growth, increasing water stress, and water scarcity have influenced the consideration of the reuse of treated wastewater as a possible alternative water source. Currently, recycled water is mainly used in industry, agriculture, and landscape irrigation, and now, in certain parts of the world, recycled water is also used as drinking water due to the limited freshwater resources. To meet the future water supply needs, the direct potable water reuse could be studied as an alternative ...

ABSTRACT: In the past decades, the automotive industry is growing proportionally with the rapid population increase. On the other hand, increasing energy consumption and the use of fossil fuels have led to increased environmental pollution. A new trend in the automotive industry in the last twenty years is the development of new types of vehicles that are powered by renewable energy and the solar-powered vehicle is very popular among them. Solar photovoltaic technologies are very convenient f...

Using vehicles and other mobile systems to transport passengers and goods, approximately 25% of Europe's greenhouse gases are generated. At the same time, many research papers, published by researchers and students, promote the use of electric vehicles as zero-emission vehicles. Given that, more broadly, the emission of electric vehicles is higher, especially in countries where electricity is obtained by burning coal, the use of internal-combustion engines is still dominant. There are other r...

One of the most important problems of today is the pollution of water resources with polluting substances, among which, heavy metals are one of the most commonly detected pollutants. Adsorption has proven to be an efficient and economically acceptable treatment for contaminated water before discharge into recipients, thereby achieving better control of the release of pollutants, and thus providing better protection and facilitating the long-lasting process of revitalization of natural sources...

On the basis of cooperation with preschool teachers and observation of their work, as well as of various research studies results, it can be concluded that preschool teachers are not competent enough to work with children gifted in art. Therefore, there is a need to develop preschool teachers’ competencies during their undergraduate studies. With the intention of enabling preservice preschool teachers to acquire the necessary competencies for working with children gifted in art, an experiment...

This paper presents the results of experimental testing performed in order to determine the operating parameters of an axial piston water hydraulic pump. The test installation for the axial piston water hydraulic pump was designed by combining the existing test stand for oil hydraulics testing with a newly built part for testing water hydraulics components. The unique test stand built for this research provides a good starting point for further study of different water hydraulic components.

The automotive industry is a major consumer of clean water. The automotive industry uses a large amount of oil-based products, paint, synthetic liquids, and as a part of the car manufacturing process. The use of these products in different production processes leads to the generation of wastewater, which, depending on the process itself, may contain different types of pollution. Depending on the type of waste water pollution, automotive industries use different types of treatments of wastewat...

Considering the constant growth in electricity demand, it is necessary to take into account new ways for electricity generation. Therefore, a significant number of transparent and semitransparent solar cells have been developed. Three cases of semi-transparent PV glass (10% visible light transmission) installations on a bus stop are analysed for Kragujevac weather conditions by using “EnergyPlus” software. In the first case, PV glass is installed on the horizontal roof of the bus stop, while ...

Final energy consumption in buildings has the highest share in final energy consumption on a global level. Heat has the highest share in final energy consumption in European buildings. Also, public buildings consume more final energy than residential buildings in general. Specific heat consumption is an important parameter that indicates the state of energy efficiency of the building sector. In this paper, specific heat consumption of public buildings in the city of Kragujevac is analyzed. ...