scholarly journals Multiscale Modeling for Reversible Solid Oxide Cell Operation

Energies ◽  
2020 ◽  
Vol 13 (19) ◽  
pp. 5058
Author(s):  
Fiammetta Rita Bianchi ◽  
Arianna Baldinelli ◽  
Linda Barelli ◽  
Giovanni Cinti ◽  
Emilio Audasso ◽  
...  
Keyword(s):  
Energy Demand ◽  
Electrode Materials ◽  
Single Cells ◽  
Solid Oxide ◽  
Multiscale Approach ◽  
Operating Modes ◽  
Fortran Code ◽  
Power Application ◽  
Power To Gas ◽  
Solid Oxide Cell

Solid Oxide Cells (SOCs) can work efficiently in reversible operation, allowing the energy storage as hydrogen in power to gas application and providing requested electricity in gas to power application. They can easily switch from fuel cell to electrolyzer mode in order to guarantee the production of electricity, heat or directly hydrogen as fuel depending on energy demand and utilization. The proposed modeling is able to calculate effectively SOC performance in both operating modes, basing on the same electrochemical equations and system parameters, just setting the current density direction. The identified kinetic core is implemented in different simulation tools as a function of the scale under study. When the analysis mainly focuses on the kinetics affecting the global performance of small-sized single cells, a 0D code written in Fortran and then executed in Aspen Plus is used. When larger-scale single or stacked cells are considered and local maps of the main physicochemical properties on the cell plane are of interest, a detailed in-home 2D Fortran code is carried out. The presented modeling is validated on experimental data collected on laboratory SOCs of different scales and electrode materials, showing a good agreement between calculated and measured values and so confirming its applicability for multiscale approach studies.

scholarly journals A Theoretical Study on Reversible Solid Oxide Cells as Key Enablers of Cyclic Conversion between Electrical Energy and Fuel

Energies ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4517
Author(s):  
Saheli Biswas ◽  
Shambhu Singh Rathore ◽  
Aniruddha Pramod Kulkarni ◽  
Sarbjit Giddey ◽  
Sankar Bhattacharya
Keyword(s):  
Energy Demand ◽  
Electrode Materials ◽  
Scale Up ◽  
High Capacity ◽  
Electrical Energy ◽  
Solid Oxide ◽  
Lower Efficiency ◽  
Internal Reforming ◽  
Fuels And Chemicals ◽  
The Cost

Reversible solid oxide cells (rSOC) enable the efficient cyclic conversion between electrical and chemical energy in the form of fuels and chemicals, thereby providing a pathway for long-term and high-capacity energy storage. Amongst the different fuels under investigation, hydrogen, methane, and ammonia have gained immense attention as carbon-neutral energy vectors. Here we have compared the energy efficiency and the energy demand of rSOC based on these three fuels. In the fuel cell mode of operation (energy generation), two different routes have been considered for both methane and ammonia; Routes 1 and 2 involve internal reforming (in the case of methane) or cracking (in the case of ammonia) and external reforming or cracking, respectively. The use of hydrogen as fuel provides the highest round-trip efficiency (62.1%) followed by methane by Route 1 (43.4%), ammonia by Route 2 (41.1%), methane by Route 2 (40.4%), and ammonia by Route 1 (39.2%). The lower efficiency of internal ammonia cracking as opposed to its external counterpart can be attributed to the insufficient catalytic activity and stability of the state-of-the-art fuel electrode materials, which is a major hindrance to the scale-up of this technology. A preliminary cost estimate showed that the price of hydrogen, methane and ammonia produced in SOEC mode would be ~1.91, 3.63, and 0.48 $/kg, respectively. In SOFC mode, the cost of electricity generation using hydrogen, internally reformed methane, and internally cracked ammonia would be ~52.34, 46.30, and 47.11 $/MWh, respectively.

scholarly journals Preliminary Electrochemical Characterization of Anode Supported Solid Oxide Cell (AS-SOC) Produced in the Institute of Power Engineering Operated in Electrolysis Mode (SOEC)

2017 ◽  
Vol 38 (4) ◽  
pp. 53-63 ◽  
Author(s):  
Jakub Kupecki ◽  
Konrad Motyliński ◽  
Marek Skrzypkiewicz ◽  
Michał Wierzbicki ◽  
Yevgeniy Naumovich
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Electrochemical Characterization ◽  
Solid Oxide ◽  
Power Engineering ◽  
Electrochemical Cells ◽  
Oxide Fuel ◽  
Power To Gas ◽  
Solid Oxide Cell

Abstract The article discusses the operation of solid oxide electrochemical cells (SOC) developed in the Institute of Power Engineering as prospective key components of power-to-gas systems. The fundamentals of the solid oxide cells operated as fuel cells (SOFC - solid oxide fuel cells) and electrolysers (SOEC - solid oxide fuel cells) are given. The experimental technique used for electrochemical characterization of cells is presented. The results obtained for planar cell with anodic support are given and discussed. Based on the results, the applicability of the cells in power-to-gas systems (P2G) is evaluated.

scholarly journals Investigation of off-design characteristics of solid oxide electrolyser (SOE) operated in endothermic conditions

2019 ◽  
Vol 137 ◽  
pp. 01029 ◽  
Author(s):  
Konrad Motylinski ◽  
Michał Wierzbicki ◽  
Stanisław Jagielski ◽  
Jakub Kupecki
Keyword(s):  
Power Plants ◽  
Renewable Energy Sources ◽  
Operating Conditions ◽  
Solid Oxide ◽  
Key Issues ◽  
Design Characteristics ◽  
Power To Gas ◽  
Solid Oxide Cell ◽  
Electrolysis Mode

One of the key issues in the energy production sector worldwide is the efficient way to storage energy. Currently- more and more attention is focused on Power-to-Gas (P2G) installations- where excess electric power from the grid or various renewable energy sources is used to produce different kind of fuels- such as hydrogen. In such cases- generated fuels are treated as energy carriers which- in contrast to electricity- can be easy stored and transported. Currently- high temperature electrolysers- based solid oxide cells (SOC)- are treated as an interesting alternative for P2G systems. Solid oxide electrolysers (SOE) are characterized as highly efficient (~90%) and long-term stable technologies- which can be coupled with stationary power plants. In the current work- the solid oxide cell stack was operated in electrolysis mode in the endothermic conditions. Based on the gathered experimental data- the numerical model of the SOC stack was created and validated. The prepared and calibrated model was used for generation of stack performance maps for different operating conditions. The results allowed to determine optimal working conditions for the tested stack in the electrolysis mode- thus reducing potential costs of expensive experimental analysis and test campaigns.

scholarly journals Operating Principles, Performance and Technology Readiness Level of Reversible Solid Oxide Cells

2021 ◽  
Vol 13 (9) ◽  
pp. 4777
Author(s):  
Fiammetta Rita Bianchi ◽  
Barbara Bosio
Keyword(s):  
Fuel Cells ◽  
Energy Demand ◽  
Electrochemical Behaviour ◽  
Solid Oxide ◽  
Continuous Increase ◽  
Environmental Consequences ◽  
Rich Mixture ◽  
Operating Modes ◽  
Main Challenge ◽  
Readiness Level

The continuous increase of energy demand with the subsequent huge fossil fuel consumption is provoking dramatic environmental consequences. The main challenge of this century is to develop and promote alternative, more eco-friendly energy production routes. In this framework, Solid Oxide Cells (SOCs) are a quite attractive technology which could satisfy the users’ energy request working in reversible operation. Two operating modes are alternated: from “Gas to Power”, when SOCs work as fuel cells fed with hydrogen-rich mixture to provide both electricity and heat, to “Power to Gas”, when SOCs work as electrolysers and energy is supplied to produce hydrogen. If solid oxide fuel cells are an already mature technology with several stationary and mobile applications, the use of solid oxide electrolyser cells and even more reversible cells are still under investigation due to their insufficient lifetime. Aiming at providing a better understanding of this new technological approach, the study presents a detailed description of cell operation in terms of electrochemical behaviour and possible degradation, highlighting which are the most commonly used performance indicators. A thermodynamic analysis of system efficiency is proposed, followed by a comparison with other available electrochemical devices in order to underline specific solid oxide cell advantages and limitations.

Studies on the Solid Oxide Cell Perovskite Electrode Materials for Soot Oxidation Activity

2019 ◽  
Vol 5 (4) ◽  
pp. 342-352 ◽  
Author(s):  
Chaitra S. Shenoy ◽  
Sunaina S. Patil ◽  
P. Govardhan ◽  
Atmuri Shourya ◽  
Hari Prasad Dasari ◽  
...  
Keyword(s):  
Electrode Materials ◽  
Soot Oxidation ◽  
Solid Oxide ◽  
Oxidation Activity ◽  
Soot Oxidation Activity ◽  
Solid Oxide Cell
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