CONSTRUCTION
Heat Supply and Ventilation
DOI.org/10.5281/zenodo.1119159
Babenko G., Zakharov G., Sopova V., Tsygankova K.
GRIGORIY BABENKO, Graduate Student, e-mail: babenkogs@mail.ru
GENNADY ZAKHAROV, Candidate of Engineering Sciences, Professor, e-mail: zakharov.ga@dvfu.ru
VIKTORIA SOPOVA, Student, e-mail: sopova_v@mail.ru
KSENIA TSYGANKOVA, Senior Lecturer, e-mail: akzige@mail.ru
Department of Construction Engineering Systems, School of Engineering
Far Eastern Federal University
8 Sukhanova St., Vladivostok, Russia, 690091
Grate firing of low-grade coal having high moisture content in mechanised furnaces of low power hot-water boilers
Abstract: The article is concerned with the peculiarities of calculating complex heat exchange in furnaces of low power boilers in the course of grate firing of solid fuels. It presents characteristics and mechanics of mechanised combustors having reciprocating grate and it assesses its potential for firing low grade coals. Basing on innovative technological solutions, there has been developed a boiler unit with the reciprocating grate. Presented are the calculations of heat exchange in the furnace and the results of thermal performance of the boiler KVm-3.0 RG (hot-water boiler having power of 3 MW with reciprocating grate.) The article contains technical proposals how to optimise burning processes when firing ordinary brown coals having high water content.
Key words: heat exchange in furnace, low power boilers, grate-firing of solid fuel, reciprocating grate, improving the energy efficiency of low power boilers.
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