Marko G. IgnjatovicUniversity of Niš | NIS · Faculty of Mechanical Engineering (MFN)
Marko G. Ignjatovic
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21
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Publications
Publications (21)
Modern society and economic development are completely dependent on various forms of energy while the ever-increasing demand for energy, in combination with significant environmental topics, has resulted in state-of-the-art ideas and solutions for fulfilling these often-contradictory goals, i.e. increasing efficiency or environmental protection and...
Although fully automated, operation of the District Heating Systems (DHS) is considered reactive and simplistic since control decisions are most often made based on the real-time ambient temperature. The research presented in this paper is aiming at facilitating proactive DHS control, by using predictive modeling techniques based on modern Artifici...
In this paper, we propose the system for AI-assisted control of District Heating Systems (DHS) for efficient distribution of heat to residential and commercial buildings in urban areas. Currently, DHS operation is controlled semi-automatically by SCADA systems, where the operation decisions are made by the DHS plant operator. Operation is considere...
The existing public buildings in Serbia provide many opportunities for energy-efficient improvements and energy savings. Based on a computer simulation using the SketchUp and EnergyPlus software packages, the energy consumption of existing primary schools in Niš, Serbia. The parametric study included interventions on the building envelope (thermal...
The use of air-source heat pumps (ASHP) is increasing to meet the energy needs of residential buildings, and manufacturers of equipment have permanently expanded the range of work and improved the efficiency in very adverse outdoor air conditions. However, in the time of a wide range of different technologies, the problem of using ASHP, from a tech...
One of the possible ways to improve balance between building energy consumption and occupant thermal comfort in existing buildings is to use simulation-assisted operation of HVAC systems. Simulation-assisted operation can be formulated as a type of operation that implements knowledge of future disturbance acting on the building and that enables ope...
The need for primary energy has almost tripled in the past 30 years [1]. Energy-efficiency of buildings is the most demanding sector in Serbia, but also the largest energy resource, especially through the potential possibility of renovating existing buildings. The school buildings sector is high on the priority list related to energy savings and re...
The intelligent building skin has multiple roles. One of them is the ability to control energy flows in the building. The concept of intelligent skin is related to its responsive performance, sometimes but not always in relation to the energy performance of the whole building, and can be compared with the biological idea of intelligence and respons...
Buildings are significant energy consumers and provide a notable potential to reduce primary energy consumption and increase energy efficiency. Cost-effectiveness of energy efficiency projects is of crucial importance for their implementation. Cost-optimality of different packages of energy retrofit measures is studied across the European Union, bu...
Relying on coal as primary fuel in thermal power plants represents an
unsustainable concept due to limited coal reserves and a negative
environmental impact. Efficient utilization of coal reserves and a request
for minimization of irreversibilities are imperative for thermal power
plants operation. Numerous studies have shown that a steam boiler is...
Traditional methods of analysis and calculation of complex thermal systems
are based on the first law of thermodynamics. These methods use energy
balance for a system. In general, energy balances do not provide any
information about internal losses. In contrast, the second law of
thermodynamics introduces the concept of exergy, which is useful in t...
Improving energy performance of buildings is one of the most important tasks
for reaching sustainability. Assessing building energy consumption is
performed more often with specialized simulation tools. Sensitivity analysis
proved to be a valuable tool for creating more reliable and realistic
building energy models and better buildings. This paper...
Buildings use a significant amount of primary energy and largely contribute to greenhouse gases emission. Cost optimality and cost effectiveness, including cost-optimal operation, are important for the adoption of energy efficient and environmentally friendly technologies. The long-term assessment of buildings-related greenhouse gases emission migh...
One of the possible ways to provide heating to the building is to use thermally activated building systems. This type of heating, besides providing significant increase in building energy efficiency, allows using low-temperature heating sources. In this paper, special attention is given to opaque part of the building facade with integrated thermall...
Co-generation systems, together with absorption refrigeration and thermal storage, can result in substantial benefits from the economic, energy and environmental point of view. Optimization of operation of such systems is important as a component of the entire optimization process in pre-construction phases, but also for short-term energy productio...
Double skin facade represents an additional skin on the outside wall of the building with the idea of reducing building's energy demand. The zone formed by adding a skin can be sealed or ventilated either naturally or mechanically. This paper shows the results of delivered heating and cooling energy for an office building during heating season with...
Implementation of co-generation of thermal and electrical energy in district heating systems often results with higher overall energy efficiency of the systems, primary energy savings and environmental benefits. Financial results depend on number of parameters, some of which are very difficult to predict. After introduction of feed-in tariffs for g...
Projects
Project (1)
Passive solar design refers to the use of the sun's energy for the heating and cooling of buildings. In this approach, the building itself or some element of it (e.g. Trombe Wall, Double Skin Facade, Green Roof...) takes advantage of natural energy characteristics in materials and air created by exposure to the sun in order to improve energy efficiency of the building.
