Progress in the Development of a Low Cost 1MW SOFC Hybrid

Agnew, Gerry; Townsend, J. S.; Moritz, Robert R.; Bozzolo, Michele; Berenyi, Steve; Duge, Robert

doi:10.1115/gt2004-53350

Cited by 12 publications

(4 citation statements)

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“…The latest applications of single stage ejectors, to perform both anodic and cathodic recirculations in Solid Oxide Fuel Cell systems [1][2][3], have shown the importance of investigating these components under both steady and unsteady conditions. For instance, Figure 1 shows the 1 MW fuel cell hybrid system, currently under development at Rolls -Royce Fuel Cell Systems (RRFCS) [1], where the recirculations are carried out with ejectors.…”

Section: Introductionmentioning

confidence: 99%

Experimental Validation of an Unsteady Ejector Model for Hybrid Systems

Ferrari

Pascenti

Massardo

2006

Volume 4: Cycle Innovations; Electric Power; Industrial and Cogeneration; Manufacturing Materials and Metallurgy

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The aim of this work is the experimental validation of a transient ejector model for hybrid system applications. This is a mandatory step in performing the transient analysis of the whole plant to avoid critical situations and to develop the control system. So, the anodic recirculation test rig already used in previous works to study the ejector design validating the steady-state 0-D and CFD models, was used in this work to perform tests at transient conditions and to validate the ejector transient model.\ud An initial validation was carried out at steady-state conditions, then the ejector transient model was successfully compared with the experimental data, also under unsteady conditions. A second step was carried out to better investigate the whole anodic recirculation system. So, the validated ejector transient model was connected to the components necessary to simulate the pipes, the valves and the anodic volume. Also in this case, the calculated results were successfully compared with the experimental data obtained with the laboratory test rig. The final part of the paper is devoted to the results obtained at impulse conditions. In fact, this work investigates the effects on the anodic ejector and on the whole anodic circuit coming from fuel line impulses caused by possible unsteadiness conditions. The results obtained with impulses at different frequency values were successfully compared with the experimental data

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Section: Introductionmentioning

confidence: 99%

Experimental Validation of an Unsteady Ejector Model for Hybrid Systems

Ferrari

Pascenti

Massardo

2006

Volume 4: Cycle Innovations; Electric Power; Industrial and Cogeneration; Manufacturing Materials and Metallurgy

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“…The following plants can be divided in two main categories: complete hybrid system prototypes operating in the mentioned companies [54]. However, the overall RRFCS scheme is relatively simple, due to the limited number of components, the interaction between the components, which is complex and the system behaviour, which is determined by many parameters [55]. The second-generation device is planned to have a higher electrical power output and higher electrical thermal efficiency compared with the first-generation device [52].…”

Section: Fuel Cells Systems Mitsubishi Heavy Industries Ge Energy Ementioning

confidence: 99%

“…Although several authors previously predicted commercialisation of these hybrid systems in 5-7 years according to plans presented in the initial decade of 2000s (e.g. [54,55]), significant issues (related to technology, maturity, complexity and costs) affected the development speed. However, validated solutions for some research issues (cost decrease, SOFC/mGT matching problem and control system) have since been developed [28,47,52].…”

Section: Future Of Hybrid Systemsmentioning

confidence: 99%

Solid oxide fuel cell hybrid system: A detailed review of an environmentally clean and efficient source of energy

Damo

Ferrari

Turan

et al. 2019

Energy

142

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This paper reports a review of an environmentally clean and efficient source of energy such as solid oxide fuel cell hybrid systems. Due to climate concerns, most nations are seeking alternative means of generating energy from a clean, efficient and environmental-friendly method. However, this has proven a big hurdle for both academic and industry researchers over many years. Currently, practical and technically feasible solution can be obtained via an integration of a microturbine and a fuel cell (hybrid systems). Combining the two distinct systems in a hybrid arrangement the efficiency of the microturbine increases from 25-30% to the 60-65% range. Hence, this paper outlines an engineering power generation solution towards the acute global population growth, the growing need, environmental concerns, intelligent use of energy with attendant environmental and hybrid system layouts concerning arising problems and tentative proposed solutions. Furthermore, advantages of a solid oxide fuel cell hybrid systems with respect to the other technologies are identified and discussed rationally. Special attention is devoted to modelling with software and emulator rigs and system prototypes. The paper also reviews the limitations and the benefits of these hybrid systems in relationship with energy, environment and sustainable development. Few potential applications, as long-term potential actions for sustainable development, and the future of such devices are further discussed. KeywordsSolid oxide fuel cell; hybrid system; prototypes; modelling with software and emulator rigs; environmentally clean energy; high efficiency.

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“…Compressor stall can become an issue when trying to optimize the system; backflow through a SOFC which would occur during stall could cause significant damage. Hybrid systems which operate at 7 atm and 850°C are also under development [2].…”

Section: Introductionmentioning

confidence: 99%

Initial Development of an Ion-Based Bidirectional Flow Sensor

Chorpening

Hill

Robinson

et al.

IEEE Sensors, 2005.

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A novel method for monitoring air or dilute air-fuel mixture flow is initially developed and tested. Although many flow sensors are commercially available, none appear to have the combination of harsh environment durability (>600°C), fast response, bidirectional flow sensitivity, and low pressure drop desired for the application in hybrid power generation systems. The flow sensor described here uses the ions produced in a hydrocarbon flame to seed the gas flow, and then detects the current resulting from the flow induced drift of charged species in two directions from the flame source. Initial results show that the sensor is sensitive to flow reversal, but suffers from difficulties with flame blowout at high gas velocities.

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Progress in the Development of a Low Cost 1MW SOFC Hybrid

Cited by 12 publications

References 0 publications

Experimental Validation of an Unsteady Ejector Model for Hybrid Systems

Experimental Validation of an Unsteady Ejector Model for Hybrid Systems

Solid oxide fuel cell hybrid system: A detailed review of an environmentally clean and efficient source of energy

Initial Development of an Ion-Based Bidirectional Flow Sensor

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