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review article

Readiness evaluation of SOFC-MGT hybrid systems with carbon capture for distributed combined heat and power

He, Victoria  
•
Gaffuri, Michele  
•
Van herle, Jan  
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January 31, 2023
Energy Conversion and Management

The aggravation of climate change calls for the timely development and implementation of highly efficient, renewable, zero- or negative-emission energy solutions with high technological readiness and feasibility levels. Solid oxide fuel cells (SOFC) constitute an appealing solution since they are close to commercial viability and can generate electricity and heat from a wide variety of fuels, for instance gas from renewable sources. In this paper, we consider the coupling of SOFC with Brayton cycles via micro gas turbines (MGT) due to their suitability for a compact small-scale energy system (10–100 kWe) and their high readiness level as stand-alone systems and in combination with suitable carbon capture and storage (CCS) technologies. An integrative literature review approach is used to qualitatively evaluate different SOFC-MGT integration strategies and CCS to devise a suitable small-scale SOFC/MGT-CCS system. A promising layout of a hybrid system based on atmospheric pressure SOFC and MGT has been identified, which uses an inverted Brayton cycle to expand the SOFC outlet gases. This system has the potential to achieve similar efficiency as the widely researched pressurized system with less complexity. Further, implementing an oxy-combustion process between the SOFC and the MGT inlet, a pure stream of CO2 is obtained, easing its capture.

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Type
review article
DOI
10.1016/j.enconman.2023.116728
Author(s)
He, Victoria  
Gaffuri, Michele  
Van herle, Jan  
Schiffmann, Jürg  
Date Issued

2023-01-31

Publisher

Elsevier

Published in
Energy Conversion and Management
Volume

278

Article Number

116728

Subjects

Combined heat and power

•

SOFC hybrid systems

•

Distributed generation

•

Carbon capture

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LAMD  
SCI-STI-JVH  
Available on Infoscience
January 31, 2023
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/194540
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