Title: Energy, exergy and environmental analyses of a biomass driven multi-generation system

Authors: Olusola Bamisile; Qi Huang; Mustafa Dagbasi; Michael Taiwo; Victor Adebayo

Addresses: School of Mechanical and Electrical Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan China ' Electronic Science and Technology Department, School of Mechanical and Electrical Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan China ' Department of Energy Systems Engineering, Cyprus International University, Haspolat-Lefkosa, Via Mersin 10, Turkey ' Microbiology Department, School of Science, Chrisland University Abeokuta, Ogun State, Nigeria ' Department of Energy Systems Engineering, Cyprus International University, Haspolat-Lefkosa, Via Mersin 10, Turkey

Abstract: In this research, a biogas driven multi-generation system is presented. The multi-generation system consists of a gas cycle, steam cycle, absorption cycle, hot water producing chamber and hot air producing chamber. The biogas used as thermal input source is derived from agricultural waste specifically maize silage and chicken manure. Thermodynamic analysis is done with energy and exergy approach. The exergy destruction within major components of these systems are also analysed. The environmental analysis for this research focuses on the carbon emission reduction. The energy and exergy efficiency of the system respectively increases from 25.16% and 18.61% when generating electrical energy only, to 73.15% and 27.27% when multi-generating.

Keywords: biogas; energy; exergy; multi-generation; thermodynamics.

DOI: 10.1504/IJEX.2020.106454

International Journal of Exergy, 2020 Vol.31 No.3, pp.249 - 267

Received: 25 Apr 2019
Accepted: 02 Sep 2019
Published online: 07 Apr 2020 *

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