Study of a small heat and power PEM fuel cell system generator

Hubert, Charles-Emile; Achard, Patrick; Metkemeijer, Rudolf

doi:10.1016/j.jpowsour.2005.08.022

Cited by 48 publications

(16 citation statements)

References 16 publications

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“…Using an SR, with the highest conversion efficiency, may yield a saving of up to 30% in fuel compared to other methods [111]. SR is a highly endothermic reaction (À206 kJ mol À1 CH 4 ) and it is generally carried out at 700e800 C. Thermal energy required for endothermic SR reactions can be generated in the fuel processor by the integrated combustion burner that uses the same gas as the reformer.…”

Section: Fuel Processormentioning

confidence: 99%

Current status of fuel cell based combined heat and power systems for residential sector

Ellamla

Staffell

Bujło

et al. 2015

Journal of Power Sources

229

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Section: Fuel Processormentioning

confidence: 99%

Current status of fuel cell based combined heat and power systems for residential sector

Ellamla

Staffell

Bujło

et al. 2015

Journal of Power Sources

229

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“…Combined Heat and Power (CHP) systems based on integrated solid oxide fuel cells (SOFC) are considered to be attractive future energy systems [1][2][3][4][5][6]. SOFC systems generate electricity with high thermal efficiency and low emissions and can also generate high quality heat.…”

Section: Introductionmentioning

confidence: 99%

“…SOFC systems generate electricity with high thermal efficiency and low emissions and can also generate high quality heat. Very high overall efficiencies (>80%) can be achieved in natural gas and biogas fueled combined heat and power applications [1]. One major challenge for achieving such efficiencies is presented by the non-coincident and dynamic thermal and electrical demand profiles of many applications.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Modeling of a Solid Oxide Fuel Cell Combined Heat and Power System With Thermal Storage for Commercial Building Applications

Nanaeda

Mueller

Brouwer

et al. 2009

ASME 2009 7th International Conference on Fuel Cell Science, Engineering and Technology

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A dynamic model of an integrated solid oxide fuel cell (SOFC) combined heat and power (CHP) system has been developed. The model was developed by modifying a previously developed generic 5 kW simple-cycle SOFC system. Fuel cell model modifications include changes in methods and constants for estimating over-potentials to better simulate a modern anode-supported planar SOFC. In addition to scaling up and modifying the fuel cell model, a thermal energy storage (TES) tank, exhaust gas duct burner and hot water exhaust gas recuperator model were integrated into the system model. The fully integrated system model can effectively simulate an SOFC-CHP system and evaluate the system performance and efficiency in meeting building electricity and heating demand profiles. For the present effort, dynamic building electricity and heating data from a hotel operated in Orange County, southern California during the months of July and August 2008 were analyzed. Specifically, tradeoffs between SOFC performance and thermal energy storage have been investigated. The simulation results show that the SOFC-CHP system has the ability to follow the dynamic electrical load with appropriate system design and controls. Due to thermal power mismatch during electricity load-following operation, supplementary exhaust gas duct burner heat and/or a TES is required to independently dispatch the fuel cell power and meet the hotel heating demand. However, if the fuel cell is sufficiently sized, the system can achieve greater than 70% efficiency with only a small TES tank and without the need to fire the duct burner. The dynamic model and integrated SOFC-TES concept are shown to be useful for developing integrated CHP systems and to evaluate performance.

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“…Steam reforming is generally the preferred method as it produces higher concentrations of hydrogen, and thus requires up to 30% less hydrocarbon fuel (Hubert et al, 2006). the hydrogen rich steam leaving the reformer will contain a proportion of CO and sulphurous compounds (usually converted to H 2 s in the reforming stage) from the fuel source and added odorants.…”

Section: Fuel Processormentioning

confidence: 99%

“…10.4 (Hubert et al, 2006). The main benefit of steam reforming is the high concentration of hydrogen in the output reformate -70-80%, compared with 50-60% for autothermal and even less for partial oxidation; which consequently gives the highest operating efficiency (Woods and Cuzens, 2001).…”

confidence: 99%

Fuel cell systems for small and micro combined heat and power (CHP) applications

Brett

Brandon

Giarola

et al. 2011

Small and Micro Combined Heat and Power (CHP) Systems

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Study of a small heat and power PEM fuel cell system generator

Cited by 48 publications

References 16 publications

Current status of fuel cell based combined heat and power systems for residential sector

Current status of fuel cell based combined heat and power systems for residential sector

Dynamic Modeling of a Solid Oxide Fuel Cell Combined Heat and Power System With Thermal Storage for Commercial Building Applications

Fuel cell systems for small and micro combined heat and power (CHP) applications

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