Performance evaluation of different configurations of biogas-fuelled SOFC micro-CHP systems for residential applications

Farhad, Siamak; Hamdullahpur, Feridun; Yoo, Yeong

doi:10.1016/j.ijhydene.2010.01.052

Cited by 132 publications

(55 citation statements)

References 45 publications

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“…As a result, fuels with higher upper flammability limits may have advantages in generating higher syngas concentrations, which results in higher power densities and higher electrical efficiencies as observed in previous work (Milcarek et al, 2016a;Milcarek et al, 2016c). However, methane does have a higher H:C ratio compared to these other fuels which provides advantages in generating more H2 compared to CO. CO has the potential to coke on Ni based anodes used in SOFCs which is a challenge for these higher hydrocarbon fuels (Achenbach 1994;Farhad et al, 2010). Fig.…”

Section: Introductionmentioning

confidence: 99%

Micro-tubular flame-assisted fuel cells

Milcarek

Garrett

Ahn

2017

JFST

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Micro-tubular solid oxide fuel cells operating in fuel-rich combustion exhaust are explored in this work and their benefits in reducing the balance of plant in fuel cell systems is discussed. The current state of performance of these micro-tubular flame-assisted fuel cells operating with methane fuel is described and the benefits of operating in propane fuel are explored. An experimental investigation of propane combustion at different fuel/air equivalence ratios is conducted. Temperature measurements of the propane combustion are recorded with thermocouples while the gas species present in the exhaust are measured with a gas chromatograph. Propane is found to have advantages over methane due to a higher upper flammability limit and higher percentages of hydrogen and carbon monoxide, i.e. syngas, generated in the combustion exhaust. A micro-tubular flame-assisted fuel cell is tested using the four probe technique in model propane combustion exhaust at different equivalence ratios and temperatures. A method for comparing the performance of the fuel cell in the combustion exhaust to a hydrogen fuel baseline is developed and comparisons are made. The benefits of operating in propane compared to methane are explored with the potential for fuels like propane and butane being distinguished by their higher upper flammability limits and potential for higher concentrations of syngas in the combustion exhaust.

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Section: Introductionmentioning

confidence: 99%

Micro-tubular flame-assisted fuel cells

Milcarek

Garrett

Ahn

2017

JFST

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“…where P ab accounts for the parasitic electrical consumption in the air blower covered by the electricity generated by the SOFC, while Á ab , the power consumption factor, is defined as a ratio of the power provided by the SOFC itself for air blowing to the total amount of power generated by the SOFC, and its value is normally no more than 20% [37][38][39].…”

Section: Air Blowermentioning

confidence: 99%

Optimal design and operation of a syngas-fuelled SOFC micro-CHP system for residential applications in different climate zones in China

Yang

Zhao

Liso

et al. 2014

Energy and Buildings

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Early version, also known as pre-print Link to publication from Aalborg University Citation for published version (APA):Yang, W., Zhao, Y., Liso, V., & Brandon, N. (2014). Optimal design and operation of a syngas-fuelled SOFC micro CHP system for residential applications in different climate zones in China. Energy and Buildings, 80, 613-622. https://doi.org/10.1016/j.enbuild.2014.05.015 General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.? Users may download and print one copy of any publication from the public portal for the purpose of private study or research. ? You may not further distribute the material or use it for any profit-making activity or commercial gain ? You may freely distribute the URL identifying the publication in the public portal ? Take down policyIf you believe that this document breaches copyright please contact us at vbn@aub.aau.dk providing details, and we will remove access to the work immediately and investigate your claim. t r a c tFuel cell based micro-CHP systems are expected to be one of the most promising technologies for implementation in the residential sector. Since the design and operation of such CHP systems are greatly dependent upon the seasonal atmospheric conditions, it is important to evaluate their performance under difference climate conditions to ensure that it is well matched with the local heat-to-power ratio. The aim of this study is to investigate the optimal design and operation of a syngas-fuelled SOFC micro-CHP system for small households located in five different climate zones in China. The ability of the micro-CHP to cover the heat and electricity demand of a 70 m 2 single-family apartment with an average number of occupants of 3 is evaluated. A detailed model of the micro-CHP unit coupled with a hot water storage tank and an auxiliary boiler is developed. System design trade-offs are discussed to determine the optimal match between the energy demand of the household for different climates across China and the energy supply of the micro-CHP during the whole year. Moreover, criteria for sizing the system components of the micro-CHP are specifically addressed. The developed methodology can be applied to different types of residence with different load profiles.

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“…Toonssen et al [4] investigated the SOFC/GT hybrid system integrated with a biomass gasification and showed that the gasification technology has slightly effect on the overall SOFC system performance. Farhad et al [5] studied a SOFC microcombined heat and power system using biogas as a fuel. The heat generated from an afterburner was used to other heat-requiring units in the system, acheiving the highest thermal efficiency and electrical efficiency of the system.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of SOFC Systems Integrated with Steam Reforming of Different Renewable Fuels

Saebea¹,

Authayanun²,

Patcharavorachot³

et al. 2024

RE&PQJ

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This study presents the performance analysis of a solid oxide fuel cell (SOFC) system integrated an external steam reforming process. Various renewable fuels such as ethanol, glycerol and biogas, are considered. Effect of key operating parameters of a steam reformer on hydrogen production for SOFC is investigated. The performance of the SOFC systems fed by different fuels in terms of electrical and termal efficiencies is compared. The results show that the biogas-fuelled SOFC system required the highest energy supply. The SOFC fed by ethanol can achieve the highest electrical and thermal efficiencies.

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Performance evaluation of different configurations of biogas-fuelled SOFC micro-CHP systems for residential applications

Cited by 132 publications

References 45 publications

Micro-tubular flame-assisted fuel cells

Micro-tubular flame-assisted fuel cells

Optimal design and operation of a syngas-fuelled SOFC micro-CHP system for residential applications in different climate zones in China

Performance Analysis of SOFC Systems Integrated with Steam Reforming of Different Renewable Fuels

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