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Biomass - a promising source of energy
 Pauk, Marek ; Hudák, Igor (referee) ; Skryja, Pavel (advisor)
The thesis deals with possibility of exchanging gas boiler for biomass boiler for heating communal buildings. The goal is to count economic and environmental impacts of combusting biomass compared to combusting natural gas. The last two parts of the thesis proves that. The beginning of the thesis contains introduction of getting biomass for communal boiler room and suggests different boiler constructions. Then it divides types of biomasses and determines which are suitable for energy purposes specifically for combustion. The calculation part solves heating losses and necessary heat output for example buildings. Then the thesis suggests possible solutions of heating communal buildings. One of the solutions is communal boiler room with one boiler with 350 kW heat output, second solution is with two boilers with 200kW and 150kW heat outputs, last solution describes just exchange of old boilers for new ones that can combust biomass. Then all the solutions are compared for financial return, which is 6 years for both communal boiler rooms and around 13 years for solution that counts with exchanging boilers. It describes ecological impact of combustion of these two fuels. There it describes amount of emission of harmful substances during their combustion. At the end it explains carbon dioxide neutrality of biomass combustion. Biomass has several times higher emissions at the place of production during combustion then natural gas, but it is still more environmentally friendly.
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