[1] Iliev I.: Means and methods for waste heat recovery from low-grade gas-steam flows. Monograph, University Publishing Center at the University of Ruse, Ruse 2013 (in Bulgarian).
[2] Kowalczyk T., Ziółkowski P., Badur J.: Exergy analysis of the Szewalski cycle with a waste heat recovery system. Arch. Thermodyn. 36(2015), 3, 25–48.
[3] Rutkowski Ł., Szczygieł I.: Calculation Of the furnace exit gas temperature of Stoker fired boilers. Arch. Thermodyn. 42(2021), 3, 3–24.
[4] Mikielewicz J., Mikielewicz D.: Optimal boiling temperature for orc installation. Arch. Thermodyn. 33(2012), 3, 27–37.
[5] Askarova A.S., Bolegenova S.A., Georgiev A., Bolegenova S.A., Maximov V.Yu., Manatbayev R.K., Yergaliyeva A.B., Nugymanova A.O., Baizhuma Zh.T.: The use of a new “clean” technology for burning low-grade coal in boilers of Kazakhstan TPPs. Bulg. Chem. Commun. 50(2018), Spec. Iss. G, 53–60.
[6] Nunes L.J.R., Godina R., Matias J.C.O.: Characterization and possible use to fly ashes from anthracite combustion in a thermal power plant. In: Proc. 2018 IEEE Int. Conf. on Environment and Electrical Engineering and 2018 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe), Palermo, June 12–15, 2018, 1–4.
[7] Zlatov N., Glazyrin S., Zhumagulov M., Aidymbayeva Z.: Wastewater treatment of the thermal power plants for desulfurization of flue gas. J. Eng. Sci. Technol. Rev., Spec. Iss. (2020), 154–157.
[8] Dzhaksybaev S.I., Muravyev I.Ya.: Big coal of Ekibastuz. Nedra, Moscow 1990, ISBN 5-247-00833-2.
[9] Shtyogolev V.A.: Battery Emulsifier Swirler Unit with Replaceable Blade Machines. Patent # RU129017U1, 2013-06-20, (2013).
[10] Bricl M.: Cleaning of flue gases in thermal power plants. J. Energy Technol. 4(2016), 45–56.
[11] https://www.mikropul.com/uploads/pdf/wet_scrubbers.pdf (accessed 20 May 2022).
[12] Lee B.K, Mohan B.R., Byeon S.H, Lim K.S., Hong E.P.: Evaluating the performance of a turbulent wet scrubber for scrubbing particulate matter. J. Air Waste Manage. Assoc. 63(2013), 499–506.
[13] Buchta J., Oziemski A.: Flue gas heat recovery in high efficient coal-fired power plant. In: Proc. 20th Int. Sci. Conf. on Electric Power Engineering (EPE), May 15-17, 2019, Kouty nad Desnou, 1–6.
[14] Szulc P., Tietze T.: Recovery and energy use of flue gas from a coal power plant. J. Power Technol. 97(2017), 135–141.
[15] Stevanovic V.D., Petrovic M.M.,Wala T., Milivojevic S., Ilic M., Muszynski S.: Efficiency and power upgrade at the aged lignite-fired power plant by flue gas waste heat utilization: High pressure versus low pressure economizer installation. Energy 187(2019), 115980.
[16] Wang C., He B., Sun S., Wu Y., Yan N., Yan L., Pei X.: Application of a low pressure economizer for waste heat recovery from the exhaust flue gas in a 600 MW power plant. Energy 48(2012), 196–202.
[17] Xu C., Xu G., Zhou L., Yang Y., Li Y., Deng J.: A novel flue gas heat recovery system integrated with air preheating in a utility boiler. In: Proc. ASME Turbo Expo 2013, Power for Land, Sea, and Air, Vol. 2, Turbo Expo 2013, San Antonio, June 3–7, 2013. ASME Pap. GT2013–95185.
[18] Xu G., Xu C., Yang Y., Fang Y., Li Y., Song X.: A novel flue gas waste heat recovery system for coal-fired ultra-supercritical power plants. Appl. Therm. Eng. 67(2014), 240–249.
[19] Han Y., Xu G., Zheng Q., Xu C., Hu Y., Yang Y., Lei J.: New heat integration system with bypass flue based on the rational utilization of low-grade extraction steam in a coal–fired power plant. Appl. Therm. Eng. 113(2017), 460–471.
[20] Yan M., Zhang L., Shi Y., Zhang L., Li Y., Ma C.: A novel boiler cold-end optimisation system based on bypass flue in coal-fired power plants, Heat recovery from wet flue gas. Energy 152 (2018), 84–94.
[21] Fan C., Pei D., Wei H.: A novel cascade energy utilization to improve efficiency of double reheat cycle. Energy Convers. Manage. 171(2018), 1388–1396.
[22] Yang Y., Xu C., Xu G., Han Y., Fang Y., Zhang D.: A new conceptual cold-end design of boilers for coal fired power plants with waste heat recovery. Energy Convers. Manage. 89(2015), 137–146.
[23] Ziółkowski P., Hyrzynski R., Lemanski M., Kraszewski B., Bykuc S., Głuch S., Sowizdzał A., Pajak L., Wachowicz-Pyzik A., Badur J.: Different design aspects of an organic Rankine cycle turbine for electricity production using a geothermal binary power plant. Energy Convers. Manage. 246(2021), 114672. [24] Mikielewicz D., Wajs J, Ziółkowski P., Mikielewicz J.: Utilisation of waste heat from the power plant by use of the ORC aided with bleed steam and extra source of heat. Energy 97(2016), 11–19.
[25] Huang S., Li Ch., Tan T., Fu P., Wang L., Yang Y.: Comparative evaluation of integrated waste heat utilization systems for coal-fired power plants based on in-depth boiler-turbine integration and organic rankine cycle. Entropy 20(2018), 2, 89.
[26] Alekhnovich A.N.: Ash collection at homeland thermal power plants. Private communication, (2020).
[27] Leister N., Karbstein H.P.: Evaluating the stability of double emulsions. A review of the measurement techniques for the systematic investigation of instability mechanisms. Colloids Interfaces 4(2020), 1, 8.
[28] Shamsi S.S.M., Negash A.A., Cho G.B., Kim Y.M.: Waste heat and water recovery system optimization for flue gas in thermal power plants. Sustainability 11(2019), 1881.
[29] http://www.coolprop.org (accessed 20 May 2022).
[30] Nemade A.C., Ponsankar S.: Efficiency improvement in thermal power plants using waste heat recovery of flue gas-simulation study. IOP Conf. Ser.: Mater. Sci. Eng. 912(2020), 042015.
[31] Kostov K., Ivanov I., Atanasov K.: Development and analysis of a new approach for simplified determination of the heating and the cooling loads of livestock buildings. EUREKA: Phys. Eng. 2(2021), 87–98.
[32] https://www.publenef-toolbox.eu/tools/ensi-eab-energy-auditing-buildings-bulgaria (accessed 20 May 2022).