Fialko, Nataliia, Alla Stepanova, Raisa Navrodska, Nataliia Meranova, and Yulii Sherenkovskii. “Efficiency of the Air Heater in a Heat Recovery System at Different Thermophysical Parameters and Operational Modes of the Boiler”. Eastern-European Journal of Enterprise Technologies 6, no. 8 (96) (November 16, 2018): 43–48. Accessed June 17, 2024. https://journals.uran.ua/eejet/article/view/147526.