Heat and power plant chimneys thermal inspection with an infrared camera Katarzyna Stokowiec, Dagmara Kotrys-Działak, Dominika Mochocka and Marcin Sokołowski E3S Web Conf., 336 (2022) 00005 Published online: 17 January 2022 DOI: 10.1051/e3sconf/202233600005