DBPapers
DOI: 10.5593/SGEM2014/B41/S17.023

ENERGY AND EXERGY ANALYSES OF COGENERATION SYSTEM WITH A BIOGAS ENGINE

N. Doseva, D. Chakyrova
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-15-5 / ISSN 1314-2704, June 19-25, 2014, Book 4, Vol. 1, 173-180 pp

ABSTRACT
In this paper, an existing cogeneration system driven by 2x160 kW biogas engine are investigated by energy and exergy analyses. The biogas is produced in the Wastewater Treatment Plant, Varna, Bulgaria. The basic thermodynamic parameters on the characteristic stations of the cogeneration system are determined by energy analysis of the considered system’s components. Exergy destruction within the system is also assigned in present study. Moreover, the energy and exergy relationships and parameters for entire system, as well as for each component of the cogeneration system according to [6] have performed. Therefore, the present study provides methodology, which permits us to analyze thermodynamic efficiency parameters of similar class energy conversion systems.

Keywords: Biogas Internal Combustion engine, Cogeneration system, Energy, Exergy,Thermodynamic Efficiency Parameters