Projects / Programmes source: ARIS

Numerical analysis of steam power plants operation in Termoelektrarna-toplarna Ljubljana

Research activity

Code Science Field Subfield
2.03.00  Engineering sciences and technologies  Energy engineering   

Code Science Field
T140  Technological sciences  Energy research 
T200  Technological sciences  Thermal engineering, applied thermodynamics 
Heat&power plants, energy systems, cogeneration
Evaluation (rules)
source: COBISS
Researchers (12)
no. Code Name and surname Research area Role Period No. of publicationsNo. of publications
1.  06322  Milko Čefarin  Energy engineering  Technical associate  2004 - 2007  32 
2.  15990  PhD Boštjan Drobnič  Energy engineering  Researcher  2004 - 2007  200 
3.  04221  PhD Srečko Herman  Neurobiology  Researcher  2004  176 
4.  06784  PhD Igor Kuštrin  Energy engineering  Researcher  2004 - 2007  357 
5.  23369  PhD Mitja Mori  Energy engineering  Researcher  2004 - 2007  384 
6.  22241  PhD Lovrenc Novak  Energy engineering  Researcher  2004  187 
7.  24248  PhD Tine Ogorevc  Energy engineering  Junior researcher  2004 - 2007  22 
8.  09218  PhD Janez Oman  Energy engineering  Researcher  2004 - 2007  427 
9.  21774  PhD Darja Rupnik Poklukar  Mathematics  Researcher  2004  57 
10.  14342  PhD Mihael Sekavčnik  Energy engineering  Head  2004 - 2007  565 
11.  08456  PhD Andrej Senegačnik  Energy engineering  Researcher  2004 - 2007  331 
12.  04121  PhD Matija Tuma  Energy engineering  Researcher  2004 - 2007  616 
Organisations (1)
no. Code Research organisation City Registration number No. of publicationsNo. of publications
1.  0782  University of Ljubljana, Faculty of Mechanical Engineering  Ljubljana  1627031  29,280 
In the future, steam power plants will continue to play a central role in supplying electrical power and heat. Opening of energy market while following strict environmental standards of operation for such plants represents a great challenge for plant management. Optimization of plant operation involves considering energetical, economical and environmental criteria. Actual energy efficiency of a steam plant is determined by measurement of all energy flows, where the indirect method has to be used due to measurement uncertainty of coal mass flow determination. On the basis of process schemes, processes in a steam plant are modelled by using mass and energy balances, resulting in systems of linear equations. For certain plant elements like district heating stations or rotational air heaters, the models for energy and mass balances are investigated in detail and written in appropriate linearised form. Numerical model is calibrated on the basis of previously measured data and its accuracy is verified. Simulation of characteristic operational modes is performed for individual units: backpressure, condensing and mixed. By using parametrical variation of boundary conditions, an optimal mass flow setting is found (simulated) for each operational mode to achieve maximum efficiency and economic effect. Main goals of the research project are: objective estimation of present state effectiveness, making of numerical model for each plant unit, model calibration on the basis of previous measurements of energy flows and efficiencies, use of numerical models for optimisation of steam power plant operation, use of numerical models for planning development of energy supply in the future.
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