Markov, Zoran
Preferred name
Markov, Zoran
Official Name
Markov, Zoran
Main Affiliation
Email
zoran.markov@mf.edu.mk
14 results
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Item type:Publication, Verification of nonlinear hydro power plant models using real plant measurements(Energetika 2016, list saveza energeticara Srbije, broj 3-4 mart 2016, pp 136-141, 2016-03); ; ; - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Possibilities for improving energy efficiency in industry sector utilizing low temperature waste heat recovery(Balkan Environmental Association (B.EN.A.), 2018); ; ; The energy efficiency in the industry sector is a strong and leading factor for the competitiveness on the domestic and foreign markets. In this paper are analysed the possibilities for improving energy efficiency in the industry sector by utilising low temperature waste heat recovery (LTWHR). As a waste heat it is considered the energy that is generated in industrial processes without being put to practical use. The focus in the analysis is placed on the Organic Rankine Cycle technology for utilising LTWHR as a competitive technology for the energy sources where neither gas nor steam cycles offer a technically and/or economically viable solution to generate electric power or other useful energy transformation. Also it is given brief overview of the cycle configurations that are commonly used or proposed in the literature for this kind of applications. Within the analysis is covered waste heat recovery from the exhaust gases from hot water boilers, steam boilers and combined heat and power units - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Direct Tool for Generation of the Geometry of a Francis Turbine Guide Vane System(IEEE, 2020-06); ; Hydropower accounts for about 70 percent of the World's renewable energy. Therefore, hydraulic turbines, their development and flexibility represent important factor. This paper focuses on the software design and simulation of the optimal stationary parts of these turbines. Water quantity and its distribution to the runner in a Francis turbine is controlled by the wicket gate which represents a radial cascade composed of guide vanes. The wicket gate has the task to regulate the amount of water discharge and generate the proper circulation at the runner inlet. Since the wicket gate provides the required hydrodynamic conditions at the runner entrance, optimizing its design is of great significance. The most important parameters are the guide vanes number and the guide vane shape. By testing the performance of different blade types, the most favorable guide vane geometry can be found. In this paper, the software MATLAB and ANSYS Workbench are used to automate the process of generating the geometry of a certain Francis turbine wicket gate and/or only one guide vane with the aid of python scripting. The procedure of automated geometry creation, where the final product depends on the variable input parameters, would be followed by numerical investigation of the water flow in the guide vane system and structural analysis of the guide vane. This design tool is intended to facilitate the optimization process which follows. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Hydrogen Cogeneration for Ancillary Services and Optimization of a Cascade Hydropower System(2024-05); ; - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Operativni režim rada hidroelektrana u kaskadnom sistemu zavisno od potrebe energetskog sistema(2020); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Constraints of Parametrically Defined Guide Vanes for a High-Head Francis Turbine(MDPI AG, 2021-05-06); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Hydro power plants operating modes in a cascade system depending on the needs of the power system(2020); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Parametric Design Tool for Development of a Radial Guide Vane Cascade for a Variable Speed Francis Turbine(IOP Publishing, 2021-06-01) - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Parameter based tool for Francis turbine guide vanes design using coupled MATLAB - ANSYS approach(SDEWES Centre, 2021-09); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Influence of the guide vanes design on stress parameters of Francis-99 turbine(IOP Publishing, 2019-08)