Revitalisation of large and medium capacity boilers focused on improvement of economic and environmental indicators

摘要

Coal, accounting for ～73% of energy used in our country, is the basic energy resource in Poland. Polish power generation sector has over 29 000 MW of installed electrical capacity and ca. 23 000 thermal MW installed in heating plants for heating purposes. Electric power and heat generation is the major source of emission of polluting substances (mainly CO{sub}2, CO, NO{sub}2, SO{sub}2 and particulate matter) to the atmosphere. ln 1990, average service life of installed units amounted to 19 years for units up to 200 MW and c.a. 5 years for units larger than 200 MW. This situation triggered intensive activities focused on reconstruction and modernisation of power generation equipment. Last ten years saw the development of activities aiming at improvement of fuel use effectiveness and reduction of pollutants emission to the atmosphere. This series of programs commenced in the period from 1988 to 1990 together with the study works on SO{sub}2 and NO{sub}2 emission reduction using primary methods and on reduction of particulate matter emission.