Vanja M Šušteršič

• PhD
• Professor (Full) at University of Kragujevac

Modern technologies for the treatment of organic waste include the co-/digestion procedure as one of the basics. This paper provides an overview of the tests performed at the international level, the theoretical basis, and key parameters of the co-/digestion process, concluding with the experiment set up and performed. Co-/digestion is presented as...

In this paper, a numerical analysis (using EnergyPlus software) of the ground source heat pump for heating and cooling in a three-story residential building located in Kragujevac was performed. The ground source heat pump is connected to geothermal vertical probes on the primary side, while on the secondary side, it is connected to floor panel heat...

The implementation of three-dimensional (3D) printing for education in different fields brings numerous advantages that make learning easier for students. Also, it changes the model of students' participation in the teaching process so that they become active participants. This article considers the involvement of 3D printing in the teaching proces...

Unlabelled: Co-digestion implementation in wastewater treatment plants enhances biogas yield, so this research investigated the optimal ratio of biodegradable waste and sewage sludge. The increase in biogas production was investigated through batch tests using basic BMP equipment, while synergistic effects were evaluated by chemical oxygen demand...

Greenhouses have significant importance in the field of agriculture and horticulture. A special type of greenhouse is solar greenhouse, which is designed to collect solar energy during sunny days and to store heat for use at night or during periods without the Sun. In this paper it is investigated a solar greenhouse with photovoltaic panels. For gr...

Co-digestion implementation in wastewater treatment plants reduces waste output and enhances biogas yield. In this regard, the objective of this research was to determine the optimal ratio of biodegradable waste and sewage sludge for co-digestion process in a city plant in central Serbia. The increase in biogas production was investigated through b...

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 po...

The application of 3D printing technologies in the industry is growing as new possibilities for their application are discovered, which take advantage of their functionalities. Also, today more and more 3D technology is used for educational purposes. Incorporating of 3D printing in the form of production of three dimensional shapes into the teachin...

Wastewater treatment plants contribute to the removal of pollutants from wastewater following the norms and regulations on the quality of the wastewater and therefore are an indispensable part of wastewater treatment and environmental protection. Each stage of wastewater treatment consumes a significant amount of energy. The need to meet rapid popu...

Batch experiments focusing on chemical oxygen demand (COD) balance appear to be appropriate method for proofing synergetic effects of co-digestion. Inclusions of small concentration of food waste (FW) as co-substrate to primary sludge (PS) provision improved nutrient balance for microbial strain, whereby not only biogas production increases but als...

In the last few decades, buildings have been recognized as large energy consumers, so it is necessary continuously implementation of different measures for improving energy efficiency of existing and construction of energy efficient new buildings. The use of renewable energy sources is essential, and solar energy represents the most promising and m...

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...

U kontekstu pametnih gradova poznavanje potrošnje vode u domaćinstvima u realnom vremenu postaje sve važnije. Razumevanje faktora koji odreĊuju potrebu za vodom u domaćinstvima mogu da pomognu komunalnim preduzećima, lokalnim i regionalnim vlastima u kreiranju održive politike u oblasti voda. Cilj ovog istraživanja je bio da identifikuje i predstav...

Wastewater collection and treatment have a wide range of impacts on the environment and the economy, both locally and globally. The lack of a sewage system outside of central urban areas and the insufficient number of constructed and operative wastewater treatment plants are leading problems concerning the management and treatment of municipal, dom...

Wastewater collection and treatment have a wide range of impacts on the environment and the economy, both locally and globally. The lack of a sewage system outside of central urban areas and the insufficient number of constructed and operative wastewater treatment plants are leading problems concerning the management and treatment of municipal, dom...

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 contro...

Anaerobic codigestion (AcoD) is a proven option to significantly boost biogas production while utilizing existing digesters and infrastructure. Co-digestion of food waste with sewage sludge (SS) is increasingly exploited to raise energy production and make anaerobic digestion more affordable; however, there is a lack of information on appropriate c...

The food industry has been constantly growing. Hence, the substantial amount of energy used by this industrial sector has been on a constant rise. The current literature on the topic has documented the vast array of diverse measures that can be used in this branch. Our survey of 60 companies has shown that 97% of the companies consider investments...

The aim of this paper is to present the current state of slaughterhouses in Serbia regarding water consumption, wastewater flows and their characteristics, their current relationship with the environment and compare them with related plants in terms of wastewater qualities and concentrations of pollutants in them. The survey was conducted on a samp...

The food industry uses a considerable amount of energy and that amount has been constantly growing with further developments in the sector. The growth of the milk processing industries with the production of dairy products has followed the trends in the food industry in general. The authors made a systematization of the literature data on the most...

In a time of limited water resources, climate change, and significant reductions in fish and plant species, aquaponics systems can play an important role in the future of ecologically and socio-economically sustainable smart cities. The paper aims to investigate the available literature that deals with the topic and current situation related to aqu...

Razvoj fotonaponskih sistema integrisanih u omotač zgrade (BIPV) i njihova implementacija kod novih ili postojećih konstrukcija omotača zgrade pružaju estetska, ekonomska i tehnička rešenja za integraciju solarnih ćelija za proizvodnju električne energije u energetski efikasnim omotačima zgrada. U modernim i razvijenim zamljama postoji tranzicija k...

In order to preserve the environment, water consumption in dairies must be minimized and wastewater should be treated before discharging it into water recipients. The purpose of this paper is to provide a definition for water consumption centres and to derive a general equation for determining the specific water consumption at the monthly level spe...

The use of renewable energy sources for electricity generation in the Western Balkan countries is analyzed in this review paper. Since those countries are part of EU or intend to be, data for Western Balkan are also compared with data for EU-28. The first part of the paper presents a brief overview of main promotion mechanism for electricity genera...

In this paper, methane emissions from domestic wastewater were estimated using 2006 Intergovernmental Panel on Climate Change (IPCC) Guidelines. Wastewater can produce methane if it is handled anaerobically. According to the 2006 IPCC Wastewater model, methane emission is a function of the amount of generated organic waste and an emission factor th...

Air pollution, in general, has a great impact on life quality and ecosystem condition. Main way to control and minimize that influence is to conduct regular air pollution sampling throughout the year and to tight existing or impose new air quality legislations throughout time. Proscribed measures adopted by governments depend on health and environm...

Wastewater from margarine production must be treated in a way and up to a level that will not pose a source of pollution before releasing into the recipient. The quality of effluent which can be discharged into the recipient is regulated by appropriate standards or regulations for every community. This paper presents the results of the application...

The aim of this paper was to study the performance of a single-stage rotating biological contactor with supplemental aeration in terms of removal efficiency of organic and nitrogen content. Research was based on fifteen samples collected during the four year period. The wastewater was low strength with maximal measured concentration of 362 mg COD/l...

Biomass energy, which originates *om communal wastewater, now receives a specialattention as a very efective and potent source of renewable energy. Communal wastewater is available as a domestic resource and therefore there is no need for its import, as with conventional fuels. Anaerobic digestion of biomass results in biogas (55-75% CHI. Anaerobic...

This paper presents calculation of the pressure gradient at the point of aortic stenosis in patients with valvular aortic stenosis. The pressure gradients obtained by calculation were compared with the pressure gradients measured using catheterization in 12 patients with valvular aortic stenosis. It has been found that the maximum separation factor...

Water scarcity and water pollution are some of the crucial issues that must be addressed within local and global perspectives. One of the ways to reduce the impact of water scarcity and to minimizine water pollution is to expand water and wastewater reuse. The local conditions including regulations, institutions, financial mechanisms, availability...

Quality of life on Earth in the future will largely depend on the amount of safe water. As the most fundamental source of life, water is relentlessly consumed and polluted. To halt this trend, many countries are taking extensive measures and investing substantial resources in order to stop the contamination of water and return at least tolerably go...

This paper studies the ionized gas i. e. air flow in an axisymmetrical boundary layer adjacent to the bodies of revolution. The contour of the body within the fluid is non-porous. The ionized gas flows under the conditions of equilibrium ionization. A concrete form of the electro-conductivity variation law has been assumed and stud-ied here. Throug...

This paper studies the ionized gas i. e. air flow in an axisymmetrical boundary layer adjacent to the bodies of revolution. The contour of the body within the fluid is non-porous. The ionized gas flows under the conditions of equilibrium ionization. A concrete form of the electro-conductivity variation law has been assumed and studied here. Through...

The paper presents the design and operating characteristics of a model of reversible axial fan with only one impeller, whose reversibility is achieved by changing the direction of rotation. The fan is designed for the purpose of providing alternating air circulation in wood dryers in order to reduce the consumption of electricity for the fan and in...

The procedure of development of energy management system applied to an existing company (Serbian car producer “Zastava”) is shown in the paper. The aim of the paper is to provide a guideline for entrepreneurs in metal-working industry in implementing energy management system. First of all, paper includes: critical analysis of existing energy manage...

Until recent times, energy management practices primarily consisted in replacing inefficient equipment and then using any number of methods to estimate obtained savings. Experience shows that positive effects of energy efficient improvements were decreased over tune. There have been significant efforts over the last decade to define appropriate sta...

This paper presents a methodology development and the results achieved in the process of establishing energy management system in the city of Kragujevac (Serbia) and in its public services. The paper is an overview of influential factors in the field of energy management, analyzing their impact on raising the energy efficiency of individual utility...

Significant number of research projects in the area of renewable energy sources (especially for small hydro power plants) has been made within the Department for Energy and Process Engineering and Regional Euro Energy Efficiency Center at Faculty of Mechanical Engineering (University of Kragujevac, Serbia) since early eighties. The results are vari...

In this paper the relevant legislation for the geothermal energy in the European countries and Serbia is reviewed. There is a variety of the incentives for the geothermal production which are well known throughout the European Union. The governmental policies for the support of the geothermal development have so far focused on the power generation...

Hydrostatic transmission technology must achieve some goals in order to ensure its continued progress and growth, to preserve current position in the market and to compete efficiently with other energy transfer technologies (mechanical and electrical). In a specific way, activities for achieving the goals imply computer application. The paper gives...

This paper deals with energy audit procedure implemented on only Serbian car manufacturer "Zastava Automobili". Based on the results of energy auditing and performed technological and economical feasibility studies several energy saving measures were proposed. The measures are related to different energy sources: steam, hot water, compressed air, e...

This paper describes a three-dimensional compressible Navier-Stokes code, which has been developed for analysis of turbocompressor blade rows and other internal flows. Despite numerous numerical techniques and statement that Computational Fluid Dynamics has reached state of the art, issues related to successful simulations represent valuable databa...

The first stage of hydraulic amplification of two-stage electrohydraulic servovalve is usually flapper-nozzle valve with two nozzles. This is the combination of four orifices (two with constant and two with variable areas) that form hydraulic bridge. It is usual to add a constant orifice in return line of the first stage in order to reduce volumetr...

One of the main parameters to increase the energy efficiency is to reduce fuel consumption. For this purpose a number of vehicles fuel economy standards (FE) are introduced. They are being implemented all over the world in order to conserve energy and for reduction in carbon dioxide emissions. In this paper, it has been discussed how different type...

Rezime Abstract: In this paper the results of gas motor fault tree analysis are presented. In the first two parts the brief description and procedure of fault tree analysis are given. On the basis of available literature the analysis of structure and kinds of functioning of observed object components is carried out. Complexity of gas motor caused p...

This paper presents a methodology development and the results achieved in the process of establishing energy management system in the City of Kragujevac (Serbia) and in its public services. The paper is an overview of influential factors in the field of energy management, analyzing their impact on raising the energy efficiency of individual utility...