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Techno‐economic analysis of direct combustion and gasification systems for off‐grid energy supply: A case for organic rankine cycle and dual fluidized‐bed

Bagherian, Mohammad Ali; Mehranzamir, Kamyar; Ahmed, Jubaer; Nafea, Marwan; Nabipour?Afrouzi, Hadi; Wooi, Chin?leong; Beiranvand Pour, Amin; Rezania, Shahabaldin; Alizadeh, Seyed Morteza

Authors

Mohammad Ali Bagherian

Kamyar Mehranzamir

Marwan Nafea

Hadi Nabipour?Afrouzi

Chin?leong Wooi

Amin Beiranvand Pour

Shahabaldin Rezania

Seyed Morteza Alizadeh



Abstract

Biomass is one of the most versatile sustainable energy sources. This versatility allows utilization of different biomass feedstock using a verity of conversion techniques. Often, a biomass-to-bioenergy conversion method is selected depending on the application, end-use product, and the type of feedstock. In many applications such as residential energy supply, it is possible to select amongst various technologies. Although, there exist several challenges such as cost-effectiveness and sustainability that constrains bioenergy development. To this end, this research elaborates on the impacts of different conversion methods on techno-economic performance of bioenergy systems for residential energy supply. In this context, Organic Rankine Cycle based on direct combustion, and Dual Fluidized-Bed technology based on gasification were selected for that purpose. A techno-economic comparative analysis illustrates that the primary product of the system and fuel cost are the two most important factors in feasibility assessment. The negative impact of feedstock price was more severe on the Organic Rankine Cycle. For wood chips prices below 55$/t, Organic Rankine Cycle could be the better option due to lower capital and maintenance costs. In contrast, Dual Fluidized-Bed could better tolerate the variation of feedstock price; offering 8% lower cost of energy at 65$/t wood chips.

Journal Article Type Article
Acceptance Date Apr 15, 2021
Online Publication Date May 2, 2021
Publication Date 2021-09
Deposit Date Dec 28, 2021
Publicly Available Date Jan 5, 2022
Journal IET Renewable Power Generation
Publisher Institution of Engineering and Technology (IET)
Peer Reviewed Peer Reviewed
Volume 15
Issue 12
Pages 2596-2614
DOI https://doi.org/10.1049/rpg2.12196
Keywords Combined Heat and Power, Dual Fluidized-Bed, HOMER PRO, Off-grid Electrification, Organic Rankine Cycle, Techno-economic Assessment
Public URL http://researchrepository.napier.ac.uk/Output/2823526

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