Balancing of energy flows in a life cycle of thermal energy production from biogas

Slobodan Cvetković; Mirjana Kijevčanin

doi:10.5937/zasmat2104269C

Autori

Slobodan Cvetković Ministarstvo zaštite životne sredine Republike Srbije, Beograd Autor
Mirjana Kijevčanin University of Belgrade, Faculty of Technology and Metallurgy, Serbia Autor

DOI:

https://doi.org/10.5937/zasmat2104269C

Ključne reči:

biogas, toplotna energija, životni ciklus, energija, energetska efikasnost

Apstrakt

Biogas predstavlja obećavajući izvor za dobijanje energije u budućim energetskim sistemima. U ovom radu sprovedeno je razmatranje energetskih tokova u životnom ciklusu realnog biogasnog postrojenja (Mirotin-Vrbas) za proizvodnju toplotne energije, počev od prozvodnje kukuruzne silaže, transporta kravljeg stajnjaka, procesa anaerobne fermentacije i proizvodnje biogasa, do korišćenja čvrstog i tečnog digestata za proizvodnju biljnih kultura. Za evaluaciju energetskih tokova korišćena su četiri energetska indikatora. Dobijeni rezultati su pokazali da ovaj biogasni sistem ima pozitivan energetski bilans od 62.418 GJ i energetsku efikasnost od 6,1 što ukazuje da u pogledu supstitucije potrošnje fosilnih goriva ovaj sistem za proizvodnju toplotne energije predstavlja dobru alternativu.

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