RESEARCH
RESEARCH
01/ Thermal Engineering and Energy
Best description of this group scope of activities
can be seen from the reference list in the last couple of years
can be seen from the reference list in the last couple of years
REFERENCE LIST
(A) VARIOUS TESTINGS OF POWER PLANTS
(Adjusting of operating parameters, Determination of specific heat consumption, Acceptance – performance testings according to EN 12952-15 or DIN 1942 and DIN 1943)
1. ADJUSTING AND OPTIMIZATION OF OPERATING PARAMETERS OF TPP NIKOLA TESLA B2 (670 MWe) BOILER UNIT (after reconstruction and upgrading), NIV-LTE , Vinca, 2008. (in Serbian)
2. POSSIBILITIES AND GUIDELINES FOR THE ENLARGED STEAM PRODUCTION OF TPP NIKOLA TESLA A6 (308 MWe) BOILER UNIT (based on boiler unit testing), NIV-LTE, Vinca, 2008. (in Serbian)
3. ACCEPTANCE TESTING OF TPP TUZLA BOILER UNIT #5 (200 Mwe), NIV-LTE 390-1, Vinca, 2008. (in English)
4. TESTING AND DETERMINATION OF OPERATING PARAMETERS OF UNIT A1 (220 MWe) AT TPP NIKOLA TESLA (after general overhaul), NIV-LTE 365, Vinča, 2008. (in Serbian)
5. TESTING, INSPECTION AND CALCULATION OF TPP NIKOLA TESLA A6 (308 MWe) BOILER PARAMETERS (with objective to enable preparation of the second stage of overhaul), NIV-LTE 370, Vinča, 2008. (in Serbian)
6. TESTING AND ANALYSES OF OPERATING PARAMETERS OF TPP KOSTOLAC B1&B2 (2x348,5 Mwe) BOILER UNITS (after general overhaul 2007 and 2008), NIV-LTE 373, Vinča, 2008 (in Serbian)
7. POSSIBILITIES FOR ENLARGED STEAM PRODUCTION OF TPP NIKOLA TESLA B2 (620 MWe) BOILER UNIT, NIV-LTE 388, Vinca, 2008. (in Serbian)
8. TESTING OF BOILER UNIT A6 (308 MWe) AT TPP NIKOLA TESLA (before general overhaul 2008.), NIV-LTE 391, Vinča, 2008. (in Serbian)
9. ADJUSTMENT AND OPTIMIZATION OF B2 BOILER UNIT (620 MWe) AT TPP NIKOLA TESLA (after general overhaul 2008), NIV-LTE 398, Vinča, 2008, (in Serbian)
10. TESTING OF A1 UNIT (200 MWe) AT TPP KOSTOLAC (after rehabilitation), NIV-LTE 401, Vinča, 2008. (in Serbian)
11. TESTING OF A3 BOILER UNIT (305 MWe) AT TPP NIKOLA TESLA (after general overhaul 2009), NIV-LTE 405, Vinča, 2009. (in Serbian)
12. TESTING OF B1&B2 UNITS (2x348,5 MWe) AT TPP KOSTOLAC (after general overhaul 2008), NIV-LTE 409, Vinča, 2009. (in Serbian)
13. TESTING AND OPTIMIZATION OF FIRING - 230 MWe BOILER UNIT AT TPP KAKANJ, NIV-LTE 412/3-rev.1.2, Vinca, 2009. (in Serbian)
14. DETERMINATION OF SPECIFIC HEAT CONSUMPTION OF TPP KAKANJ UNIT #7 (230 MWe), NIV-LTE 412/1 rev 1.6, Vinca, 2009. (in Serbian)
15. TESTING AND CALCULATION OF BOILER UNIT A6 (308 MWe) AT TPP NIKOLA TESLA IN ORDER TO PREPARE INCREASED STEAM PRODUCTION AND EFFICIENCY (Phase 1), NIV-LTE 414, Vinča, 2009. (in Serbian)
16. TESTING OF B1 BOILER UNIT (620 MWe) AT TPP NIKOLA TESLA (before maintenance 2009), NIV-LTE 416, Vinča, 2009. (in Serbian)
17. TESTING OF A4 UNIT (305 MWe) AT TPP NIKOLA TESLA (after general overhaul 2009), NIV-LTE 421, Vinča, 2009. (in Serbian)
18. TESTING, ADJUSTMENT AND OPTIMIZATION OF B2 UNIT (660 MWe) AT TPP NIKOLA TESLA (after increased steam production), NIV-LTE 424, Vinca, 2010. (in Serbian)
19. TESTING OF B2 BOILER UNIT (348,5 MWe) AT TPP KOSTOLAC (before general overhaul 2010), NIV-LTE, Vinca, 2010. (in Serbian)
20. TESTING AND CALCULATION OF BOILER UNIT A6 (308 MWe) AT TPP NIKOLA TESLA IN ORDER TO PREPARE INCREASED STEAM PRODUCTION AND EFFICIENCY (Phase 2), NIV-LTE 456, Vinca, 2010. (in Serbian)
21. TESTING OF A5 BOILER UNIT (110 MWe) AT TPP KOLUBARA, NIV-LTE 459, Vinca, 2010. (in Serbian)
22. TESTING, ADJUSTMENT, OPTIMIZATION AND DETERMINATION OF SPECIFIC HEAT CONSUMPTION OF B1 UNIT (660 MWe) AT TPP NIKOLA TESLA (after overhaul 2010), NIV-LTE 461, Vinca, 2011. (in Serbian)
23. TESTING, ADJUSTMENT, OPTIMIZATION AND DETERMINATION OF SPECIFIC HEAT CONSUMPTION OF B2 UNIT (660 MWe) AT TPP NIKOLA TESLA (after overhaul 2010), NIV-LTE 475, Vinca, 2011. (in Serbian)
24. TESTING OF A4 UNIT (305 MWe) AT TPP NIKOLA TESLA (in order to prepare increased power production) NIV-LTE 478, Vinča, 2011. (in Serbian)
25. TESTING OF 200 MWe TURBINE AT TPP KOSTOLAC A2 (after general overhaul 2011), NIV-LTE 482, Vinca, 2011. (in English)
26. VARIOUS TESTING OF A6 BOILER UNIT (308 MWe) AT TPP NIKOLA TESLA, NIV-LTE (after overhauls and modernization 2008 and 2010), NIV-LTE 487, Vinca, 2011. (in Serbian)
27. ACCEPTANCE TESTING OF A6 BOILER UNIT (308 MWe) AT TPP NIKOLA TESLA, NIV-LTE 483, Vinča, 2011. (in Serbian)
28. ACCEPTANCE AND OTHER TESTING OF 110 MWe TURBINE #6 AT TPP KAKANJ (Bosnia and Herzegovina), NIV-LTE 505, Vinca, 2012. (in Serbian)
29. TESTING, ADJUSTMENT, OPTIMIZATION AND DETERMINATION OF SPECIFIC HEAT CONSUMPTION OF B1 UNIT (660 MWe) AT TPP NIKOLA TESLA (after overhaul 2011), NIV-LTE 506, Vinca, 2012. (in Serbian)
30. TESTING OF 125 MWe UNIT AT TPP MORAVA (before overhaul 2012), NIV-LTE 509, Vinca, 2012. (in Serbian)
31. TESTING OF A5 UNIT (308 MWe) AT TPP NIKOLA TESLA (before overhaul 2012), NIV-LTE 516-1, Vinca, 2012. (in Serbian)
32. DETERMINATION OF SPECIFIC HEAT CONSUMPTION OF UNIT #6 (110 MWe) AT TPP KAKANJ (Bosnia and Herzegovina), NIV-LTE 520, Vinca, 2013 (in Serbian)
33. ACCEPTANCE AND OTHER TESTING OF BOILER AT TPP KOSTOLAC-B2 (348,5 MWe), NIV-LTE 530, Vinca, 2013. (in Serbian)
34. ACCEPTANCE AND OTHER TESTING OF BOILER #6 (200 MWe) AT TPP TUZLA (Bosnia and Herzegovina), NIV-LTE 533, Vinca, 2013. (in Serbian)
35. DETERMINATION OF SPECIFIC HEAT CONSUMPTION OF UNIT #5 (110 MWe) AT TPP TUZLA (Bosnia and Herzegovina), NIV-LTE 550, Vinca, 2014 (in Serbian)
36. ASSSESSMENT STUDY FOR AFSIN ELBISTAN B POWER PLANT (SERVICE CONTRACT MHPSES_NO.: L67/1066605/7010639), Vinca, 2015
37. ASSSESSMENT STUDY FOR AGHIOS DIMITRIOS UNIT 3 and 4 POWER PLANT, Vinca, 2015
38. Гаранцијска испитивања емисије и ефикасности котла блока ТЕНТ-А3 (ТЕСТ-А) након примене мера за смањење емисије азотних оксида из котла, Vinca, 2015
39. Гаранцијска испитивања емисије и ефикасности котла блока ТЕНТ-А5 након примене мера за смањење емисије азотних оксида из котла, Vinca, 2015
(B) MILL TESTING
1. MILL MEASUREMENTS BOTH ON THE TWO UPGRADED AND TWO NOT MODIFIED DGS-100 MILLS AT TPP NIKOLA TESLA A3 (305 MWe), NIV-LTE, Vinca, 2008. (in English)
2. MILLS ACCEPTANCE AND ADDITIONAL TESTING OF VML 280.62k FAN MILLS IN TPP TUZLA 5 (200 MWe) (Bosnia and Herzegovina), NIV-LTE 404, Vinca, 2009. (in Serbian)
3. TESTING OF DGS-100 MILLS AND THEIR INFLUENCE TO THE COMBUSTION PROCESS AND BOILER OPERATION - TPP NIKOLA TESLA A3 (305 MWe), NIV-LTE 411, Vinča, 2009. (in Serbian)
4. RESULTS OF COAL DUST SIEVE ANALYSES – TPP KOSTOLAC-B (348,5 MWe), NIV-LTE 412, Vinča, 2009. (in English)
5. ACCEPTANCE TESTING OF VML 210.50 FAN MILLS AT TPP TUZLA 3 (100 MWe) NIV-LTE 417, Vinca, 2010. (in Serbian)
6. FAN MILLS TESTING AT TPP TUZLA 5 (200 MWe), NIV-LTE 428, Vinca, 2010. (in Serbian)
7. DGS 100 MILLS MEASUREMENTS - TPP NIKOLA TESLA-A3 (305 MWe) (Mills performance and supporting tests), NIV-LTE 463-1 rev.1, Vinča, 2010 (in English)
8. FAN MILLS TESTING AFTER UPGRADING – TPP KOSTOLAC B2 (348,5 MWe), NIV-LTE 470, Vinca, 2011. (in English)
9. DGS 100 MILLS MEASUREMENTS - TPP NIKOLA TESLA A4 (305 MW), (Mills performance and supporting tests), NIV-LTE 491, Vinca, 2011 (in English)
10. DGS 100 MILLS MEASUREMENTS - TPP NIKOLA TESLA A5 (340 MW), (Mills performance and supporting tests), NIV-LTE 515, Vinca, 2012 (in English)
11. FAN MILLS TESTING AFTER UPGRADING – TPP KOSTOLAC B2 (348,5 MWe), NIV-LTE 530, Vinca, 2013. (in English)
12. PERFORMANCE TESTING OF UPGRADED MILLS DGS 180 AT UNIT IV SES MEGALOPOLIS B, GREECE, NIV-LTE 535, Vinca, September 2013 (in English)
13. PERFORMANCE TESTING OF N270.45 MILLS AT TPP KOSTOLAC-B, NIV-LTE 539, Vinca, September 2013 (In Serbian)
14. VARIOUS TESTINGS AFTER SEVERAL RECONSTRUCTIONS OF DGS 100 MILLS AT TPP NIKOLA TESLA A5 (during October/November 2013), NIV-LTE 544, Vinca, November 2013 (In Serbian)
15. LOW NOx EMISSION PERFORMANCE TEST, Unit A5, TPP Nikola Tesla A, NIV-LTE 552, 2014 (in English)
16. DGS 100 MILLS MEASUREMENTS - TPP NIKOLA TESLA A5 (305 MW), (Mills performance and supporting tests), NIV-LTE 553, Vinca, 2014 (in English)
(C) TESTING OF ELECTROSTATIC PRECIPITATOR (ESP)
1. ACCEPTANCE TESTING OF ESP – TPP NIKOLA TESLA A4 (305 MWe), NIV-LTE 387, Vinca, 2008. (in Serbian)
2. ACCEPTANCE TESTING OF ESP – TPP KOLUBARA A5 (110 MWe), NIV-LTE 455, Vinca, 2010. (in Serbian)
3. PARTICULATE EMISSION TESTING OF UPGRADED ESP - TPP NIKOLA TESLA A6 (308 MWe), NIV-LTE-479, Vinca, 2011. (in English)
4. MEASUREMENT OF EMISSION - ESP PERIODICAL TESTING - TPP NIKOLA TESLA A1 (220 MWe), NIV-LTE 484, Vinca, 2011. (in Serbian)
5. MEASUREMENT OF EMISSION - ESP PERIODICAL TESTING - TPP NIKOLA TESLA A2 (220 MWe), NIV-LTE 485, Vinca, 2011. (in Serbian)
6. PARTICULATE EMISSION TESTING OF UPGRADED ESP - TPP NIKOLA TESLA A6 (308 MWe), NIV-LTE-486, Vinca, 2011. (in English)
7. PARTICULATE EMISSION TESTING OF UPGRADED ESP - TPP NIKOLA TESLA A6 (308 MWe), ACCEPTANCE TESTING, NIV-LTE-490, Vinca, 2011. (in English)
8. MEASUREMENT OF EMISSION - ESP PERIODICAL TESTING - TPP NIKOLA TESLA A4 (305 MWe), NIV-LTE 493, Vinca, 2011. (in Serbian)
9. MEASUREMENT OF EMISSION - ESP PERIODICAL TESTING - TPP KOLUBARA A5 (110 MWe), NIV-LTE 493, Vinca, 2011. (in Serbian)
10. MEASUREMENT OF EMISSION - ESP PERIODICAL TESTING - TPP KOLUBARA A4, NIV-LTE 494, Vinca, 2011. (in Serbian)
11. MEASUREMENT OF EMISSION - ESP PERIODICAL TESTING - TPP NIKOLA TESLA A1 (200 MWe),NIV-LTE 517, Vinca, 2013. (in Serbian)
12. MEASUREMENT OF EMISSION - ESP PERIODICAL TESTING - TPP KOLUBARA A5 (110 MWe), NIV-LTE 518, Vinca, 2013. (in Serbian)
13. PARTICULATE EMISSION TESTING OF UPGRADED ESP - TPP NIKOLA TESLA B2 (670 MWe), NIV-LTE-522, Vinca, 2013. (in English)
14. PARTICULATE EMISSION TESTING OF UPGRADED ESP - TPP NIKOLA TESLA B1 (670 MWe), NIV-LTE-524, Vinca, 2013. (in English)
15. MEASUREMENT OF EMISSION - ESP PERIODICAL TESTING - TPP NIKOLA TESLA A1 (200 MWe), A1 (200 MWe) and A3 (300 MWe), NIV-LTE 527, Vinca, 2013. (in Serbian)
16. ACCEPTANCE TESTING OF ESP – TPP KOSTOLAC B2 (348,5 MWe), NIV-LTE 528, Vinca, 2013. (in Serbian)
17. PARTICULATE EMISSION TESTING OF UPGRADED ESP - TPP NIKOLA TESLA B1 (670 MWe), NIV-LTE-529, Vinca, 2013. (in English)
18. TESTING OF ESP – TPP KOSTOLAC B2 (348,5 MWe), NIV-LTE 531, Vinca, 2013. (in Serbian)
19. PARTICULATE EMISSION GURANTEE TEST-B OF UPGRADED ESP - TPP NIKOLA TESLA A6 (340 MW), NIV-LTE-534, Vinca, 2013. (in English)
20. PARTICULATE EMISSION GURANTEE TEST-B OF UPGRADED ESP - TPP NIKOLA TESLA B1 (670 MW), NIV-LTE-548, Vinca, 2014. (in English)
(D) ACCEPTANCE TESTING OF AIR HEATER
1. PERFORMANCE TESTING OF AIR HEATERS AT TPP TUZLA-5 (200 MWe), NIV-LTE 390-2, Vinca, 2008. (in Serbian)
2. ACCEPTANCE TESTING OF AIR HEATERS AT TPP KOSTOLAC B2 (348,5 MWe), NIV-LTE 474, Vinca, 2009. (in Serbian)
3. ACCEPTANCE TESTING OF AIR HEATERS AT TPP KOSTOLAC B1 (348,5 MWe), NIV-LTE 415, Vinca, 2009. (in Serbian)
4. ACCEPTANCE TESTING OF AIR HEATERS AT TPP KOLUBARA A5 (110 MWe), NIV-LTE 519, Vinca, 2012. (in Serbian)
(E) VARIOUS STUDIES
1. P. Stefanović: LABORATORY ANALYSES OF KOLUBARA LIGNITE REPREZENTATIVE SAMPLES, NIV-LTE 369, Vinca, 2008. (in Serbian)
2. P. Stefanović: NATURAL RADIOACTIVITY OF KOLUBARA LIGNITE (from Tamnava field) VERSUS MINERAL MATTERS CONTENT, NIV-LTE 402, 2009. (in Serbian)
3. P. Stefanović: EMISSION OF GREENHOUSE GASES FROM ELECTRIC POWER INDUSTRY OF SERBIA PLANTS (1990-2008), NIV-LTE 422, 2010. (in Srebian)
4. P. Radovanović: ANALYSES OF EVAPORATOR TUBES RUPTURE – TPP KAKANJ UNIT 7 (230 MWe), NIV-LTE 427, Vinca, 2010. (in Serbian)
5. P. Stefanović: INFLUENCE OF COAL ... ON TPP NIKOLA TESLA TECHNICAL EFFICIENCY AND ENVIROMENTAL PROTECTION, NIV-LTE 458, 2010. (in Serbian)
6. P. Radovanović: POSSIBILITIES OF EVT N270.45 MILL OPERATION IMPROVEMENT IN ORDER TO DECREASE NITROGEN OXIDES EMISSION - TPP KOSTOLAC-B (2x348,5 MWe), NIV-LTE 457, Vinca, 2010. (in Serbian)
7. P. Radovanović: RESIDUAL LIFETIME ASSESSMENT OF BOILER DRUM – TPP MORAVA (125 MWe), NIV-LTE ЛТЕ 465, Vinca, 2010. (in Serbian)
8. P. Stefanović: NATURAL RADIOACTIVITY OF KOLUBARA LIGNITE VERSUS MINERAL MATTERS CONTENT, NIV-LTE, НИВ-ЛТЕ 467, Vinca, 2010. (in Serbian)
9. P. Stefanović et al.: INITIAL NATIONAL COMMUNICATION OF THE REPUBLIC OF SERBIA UNDER THE UNITED NATIONS FRAMEWORK CONVENTION ON CLIMATE CHANGE), ISBN: 978-86-7306-105-4, Belgrade, 2010. (in English and Serbian)
10. P. Stefanović: DRYING OF LIGNITE FOR SERBIAN THERMAL POWER PLANTS IN ORDER OF ENERGY EFFICIENCY AND ENVIROMENTAL PROTECTION IMPROVEMENT, NIV-LTE 469, Vinca 2011.
11. B. Grubor et al.: SAMPLING AND ANALYSES OF LOW CALORIFIC COAL RESIDUES, BIOMASS AND COMBUSTIBLE INDUSTRIAL WASTE MATERIALS IN KOLUBARA MINE, NIV-LTE 495, Vinca, 2012 (in Serbian)
12. P. Radovanović: PRE-FEASIBILITY STUDY ON NECESSITY AND TECHNO-ECONOMICAL ASPECTS OF SOLID RECOVERY FUELS CO-COMBUSTION WITH COAL AT SERBIAN POWER PLANTS, NIV-LTE 500, Vinca, 2012 (in Serbian)
13. P. Stefanović: ANALYSES OF EVAPORATOR TUBES INNER SURFACES AFTER CHEMICAL CLEANING – TPP KOSTOLAC B2 (348,5 MWe), NIV-LTE 514, Vinca, 2012. (in Serbian)
14. P. Radovanović at al: REVISION OF TPP BANOVICI (Bosnia and Herzegovina) 300 MWe BOILER DESIGN (with fluidized bed combustion), NIV-LTE 516, Vinca, 2013. (in Serbian)
02/ Renewable Energy Sources
Biomass
Fundamental
and the applied research, as well as the development of mathematical models of
the combustion and heat transfer processes are aimed at development of the
commercial devices in accordance with the industry.
Research
directions
-
Cigar combustion of the baled
biomass (fuels: byproducts of the agricultural production and energy crops,
collected in the form of bales)
-
Fluidized bed (FB) combustion (fuels:
waste food oils, glycerin, paper industry sludge, residues from crude oil reservoirs,
corn infected by aflatoxins, fruit stones, corn cob, wood chips, wood bark, pellets,
etc.)
-
Combustion of fire wood in the household furnaces and boilers
-
Combustion of the pulverized
coal supported by the swirl burners
-
Co-combustion in energy plants
-
Ignition and fire support in
the large-scale boilers burning low-grade pulverized coal and biomass dusts
-
Development of the thermal energy
storage with phase change of medium
-
Numerical simulation of the
processes of combustion and heat transfer, for the purpose of the technology
and developed devices
-
Application of additives and
catalysts for the purpose of optimization of the combustion process and environment
protection
-
Investigation of the
possibility of returning the biomass ash into the soil
-
Biomass gasification
-
Thermophysical characterization
of the baled biomass (determining porosity, permeability, thermal conductivity)
-
Defining the impact of the cold
flue gas recirculation on the global combustion kinetics of the baled biomass,
as well as on the temperature decrease in the combustion process
Wind
Solar Energy
06/ Numerical Modelling
Turbulence and Combustion in Energy Conversion Systems
Main
research interests of the group focus on mathematical modeling,
numerical methods and software development and application for
simulation of complex flow, heat and mass transfer in energy conversion
systems. Predictions made with such models and codes offer great
potential for use in analysis and optimization of the processes with
respect to energy efficiency improvements and emission reduction.
Various fields of investigation are covered, such as: turbulence and
combustion modeling, modeling of thermal radiation, mathematical
modeling of two-phase turbulent flows with heat and mass transfer and
chemical reactions, development of 3D computer codes applied for clean
and efficient utilization of pulverized coal, problems in renewable
energy sources utilization, etc. The group encompasses a broad range of
activities, from fundamental research to application of numerical
methods in optimization of boiler furnaces and other energy conversion
systems.
Research activities and topics:
- Turbulence & Combustion Modeling
- Thermal Radiation Modeling
- Numerical Prediction of Multiphase Flows
- CFD Software Development and Application
- Simulation and Optimization of Energy Conversion Systems
- Clean Coal Technologies
- Renewable Energy Sources
Combustion of Alternative Fuels
The project addresses development of environmentally sound FBC of low-calorific value wastes (incineration). Technology proposed is primarily important from environmental point of view, since it enables efficient and environmentally sound removal of wastes and ballasts generated in industrial processes, in that way solving the problem of their controlled/uncontrolled disposal. Another advantage of the technology considered is that it enables utilization of the energy potential of low-calorific value wastes, a goal found very difficult or even impossible to achieve with other technologies due to low calorific value of the considered waste types, their non uniform composition and presence of unburned components in the ash produced.
Initial project related investigations have been successfully completed within the scope of the project financed by the Ministry of Science and Technological Development (MSTD) (NPEE 232004, 01/05/2005-30/06/2008), when trial experiments analyzing combustion of sludge deposits from crude oil storage tank of Pančevo Oil Refinery have been conducted. Sludge deposits were combusted in a 100 kW fluidized bed (FB) pilot plant. In the next project phase (01/04/2009-31/12/2010) investigations have been continued within the scope of a MSTD project (??18219) when a 300 kW industrial-scale demonstration boiler burning sludge deposits from crude oil storage tanks and some other types of wastes was built in the complex of Boiler Manufacturing Plant TIPO, Belgrade.
Further investigations shall focus on improving thermal disintegration of wastes in FBC, including widening the spectrum of waste types that can be combusted in the FB combustor constructed. The said shall be primarily accomplished through installation of additional fuel dosing systems for fuel distribution on and in the FB, as well as installation of auxiliary fuel feeding line aimed to support combustion when burning waste with particularly low calorific value or waste of pronouncedly non-uniform composition. Upgrade and further development of demonstration FBC facility shall enable a data base of industrial-scale FBC of different types of waste to be assembled. In addition, special attention shall be paid to normative boiler calculation and development of computer software to be used in the boiler optimization. The said boiler optimization shall provide construction cost reduction and operating regime optimization aimed towards more efficient and environmentally sound waste elimination.
Current situation in Serbian industry indicate that the following materials need to be removed/utilized from the production processes: waste coal fractions from several underground coal mines, off-balance coal reserves, deposits of wet coal separation, waste coal fractions from Kolubara lignite drying plant in Vreoci, deposits in refinery crude oil storage tanks, deposits in heavy oil and fuel storage tanks at gas stations, waste from fruit and vegetable treatment (pulp produced by fruit pressing-squeezing, fruit stones and similar), contaminated glycerin from biodiesel production, waste from pulp and paper industry, oily waters from metal industry, used oils from rolling mills, residues from paint and varnish production etc.
Investigation of waste combustion shall include laboratory analyses, carried out prior to experiments conducted on the industrial facility. Laboratory analyses shall include proximate and ultimate fuel (waste) analyses, analysis of fuel behavior in storage and dosing systems, waste classification and adjustment of combustion process to satisfy the norms defined for the waste class in question. A detail analysis of national and international regulations and limitations related to controlled combustion of waste shall be performed and maps of different waste classes developed. Combustion of different wastes in the upgraded demonstration boiler shall be analyzed, steady state heat and mass balances calculated, temperature field distribution modeled and continuous gas emission analysis performed. Concentration and composition of solid particles in the combustion products shall be measured as well. Experimental investigation shall provide important data on the effects of combustion conditions on energy efficiency and environmental aspects of the combustion process, in that manner contributing to a better understanding of FBC processes. Possibilities for permanent, environmentally sound disposal of FBC fly ash shall be analyzed as well.
In order to be able to better understand processes occurring in the FB combustor and more comprehensively analyze effects of FBC conditions on the overall efficiency of the FBC facility, 2D numerical CFD model of the processes occurring in the FB combustor shall be further developed. During the preceding project phases development of 2D numerical fluid - porous medium model, based on the open CFD code jointly developed by Vinča Institute, LTE and LSTM Erlangen, was initiated. The model can be used for improved fuel dosing directly in the FB. In the next project phase, the model shall be further developed through introduction of single-phase and heterogeneous chemical reactions. Together with modified commercial code based on utilization of a two-fluid Euler model for FB process modeling, the CFD model developed shall enable CFD simulation of FBC of solid and liquid fuels, with special consideration of the intense combustion zone and the overall combustion efficiency of the boiler.