scholarly journals Thermodynamics Process Simulation Based Design of High Performance Light Integrated Coal Gasification Fuel Cell Plant with Membrane-Based CO2 Capture Technology

2018 ◽  
Keyword(s):  
Fuel Cell ◽  
Co2 Capture ◽  
Process Simulation ◽  
High Performance ◽  
Coal Gasification ◽  
Simulation Based Design ◽  
Simulation Based

Comparison of Preanode and Postanode Carbon Dioxide Separation for IGFC Systems

2010 ◽  
Vol 132 (6) ◽  
Author(s):  
Eric Liese
Keyword(s):  
Fuel Cell ◽  
Power Density ◽  
Co2 Capture ◽  
Coal Gasification ◽  
Combined Cycle ◽  
Energy Technology ◽  
Integrated Gasification Combined Cycle ◽  
Lower Efficiency ◽  
Integrated Gasification ◽  
Cold Gas

This paper examines the arrangement of a solid oxide fuel cell (SOFC) within a coal gasification cycle, this combination generally being called an integrated gasification fuel cell cycle. This work relies on a previous study performed by the National Energy Technology Laboratory (NETL) that details thermodynamic simulations of integrated gasification combined cycle (IGCC) systems and considers various gasifier types and includes cases for 90% CO2 capture (2007, “Cost and Performance Baseline for Fossil Energy Plants, Vol. 1: Bituminous Coal and Natural Gas to Electricity,” National Energy Technology Laboratory Report No. DOE/NETL-2007/1281). All systems in this study assume a Conoco Philips gasifier and cold-gas clean up conditions for the coal gasification system (Cases 3 and 4 in the NETL IGCC report). Four system arrangements, cases, are examined. Cases 1 and 2 remove the CO2 after the SOFC anode. Case 3 assumes steam addition, a water-gas-shift (WGS) catalyst, and a Selexol process to remove the CO2 in the gas cleanup section, sending a hydrogen-rich gas to the fuel cell anode. Case 4 assumes Selexol in the cold-gas cleanup section as in Case 3; however, there is no steam addition, and the WGS takes places in the SOFC and after the anode. Results demonstrate significant efficiency advantages compared with IGCC with CO2 capture. The hydrogen-rich case (Case 3) has better net electric efficiency compared with typical postanode CO2 capture cases (Cases 1 and 2), with a simpler arrangement but at a lower SOFC power density, or a lower efficiency at the same power density. Case 4 gives an efficiency similar to Case 3 but also at a lower SOFC power density. Carbon deposition concerns are also discussed.

A high performance ceria-based solid oxide fuel cell operating on underground coal gasification gas

RSC Advances ◽  
2015 ◽  
Vol 5 (106) ◽  
pp. 87477-87483 ◽  
Author(s):  
Jie Xiong ◽  
Chengran Jiao ◽  
Minfang Han ◽  
Wentao Yi ◽  
Jie Ma ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Electrochemical Performance ◽  
Solid Oxide Fuel Cell ◽  
High Performance ◽  
Coal Gasification ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Underground Coal Gasification ◽  
Long Term Stability

A NiO-GDC‖GDC‖Ba0.9Co0.7Fe0.2Nb0.1O3−δ cell fed with UCG gas demonstrated exceptional electrochemical performance and desirable long term stability.

Simulation Based Design for High Performance Composite Sailing Boats

2010 ◽  
Author(s):  
P Groenenboon ◽  
◽  
B Cartwright ◽  
P de Luca ◽  
A Kamoulakos ◽  
...  
Keyword(s):  
High Performance ◽  
Simulation Based Design ◽  
Simulation Based ◽  
High Performance Composite

scholarly journals Numerical evaluation of forging process designs of a hybrid co-extruded demonstrator consisting of steel and aluminium.

2021 ◽  
Author(s):  
Bernd-Arno Behrens ◽  
Hendrik Wester ◽  
Tom Petersen ◽  
Johanna Uhe ◽  
Christoph Büdenbender ◽  
...  
Keyword(s):  
High Performance ◽  
Material Distribution ◽  
Forming Process ◽  
Die Forging ◽  
Simulation Based Design ◽  
Closed Die Forging ◽  
Low Weight ◽  
Simulation Based ◽  
Manufacturing Technologies ◽  
The Individual

Multi-material solutions represent a promising approach for the production of load-optimised parts. The combination of material-specific advantages of different materials in a single component allows the fulfilment of conflicting requirements e.g. high performance and low weight. Fabrication of hybrid components is challenging due to the dissimilar properties of the individual materials and requires the development of suitable manufacturing technologies. The present paper deals with the simulation-based design of a forming process for the production of a suspension control arm consisting of steel and aluminium. With the focus on material flow, two forming concepts, open-die and closed-die forging, were investigated, in order to ensure the required material distribution similar to the final part. In addition, a tool analysis was carried out to avoid thermo-mechanical overload of the tool system. It was found that the required material distribution can be achieved with both forming concepts. However, a closed-die forging concept is not suitable because of the high stresses in the forging dies exceed the tool steel’s strength.

scholarly journals Advanced Simulation-based Design of High Performance Machining Processes

Procedia CIRP ◽  
2016 ◽  
Vol 46 ◽  
pp. 165-168 ◽  
Author(s):  
Dirk Biermann ◽  
Tobias Bleckmann ◽  
Sebastian Schumann ◽  
Ivan Iovkov
Keyword(s):  
High Performance ◽  
Machining Processes ◽  
Simulation Based Design ◽  
Simulation Based

scholarly journals Simulation-Based Design and Economic Evaluation of a Novel Internally Circulating Fluidized Bed Reactor for Power Production with Integrated CO2 Capture

Processes ◽  
2019 ◽  
Vol 7 (10) ◽  
pp. 723 ◽  
Author(s):  
Jan Hendrik Cloete ◽  
Mohammed N. Khan ◽  
Schalk Cloete ◽  
Shahriar Amini
Keyword(s):  
Economic Evaluation ◽  
Fluidized Bed ◽  
Co2 Capture ◽  
Gas Turbines ◽  
Circulating Fluidized Bed ◽  
Scale Up ◽  
Fluidized Bed Reactor ◽  
Power Production ◽  
Simulation Based Design ◽  
Simulation Based

Limiting global temperature rise to well below 2 °C according to the Paris climate accord will require accelerated development, scale-up, and commercialization of innovative and environmentally friendly reactor concepts. Simulation-based design can play a central role in achieving this goal by decreasing the number of costly and time-consuming experimental scale-up steps. To illustrate this approach, a multiscale computational fluid dynamics (CFD) approach was utilized in this study to simulate a novel internally circulating fluidized bed reactor (ICR) for power production with integrated CO2 capture on an industrial scale. These simulations were made computationally feasible by using closures in a filtered two-fluid model (fTFM) to model the effects of important subgrid multiphase structures. The CFD simulations provided valuable insight regarding ICR behavior, predicting that CO2 capture efficiencies and purities above 95% can be achieved, and proposing a reasonable reactor size. The results from the reactor simulations were then used as input for an economic evaluation of an ICR-based natural gas combined cycle power plant. The economic performance results showed that the ICR plant can achieve a CO2 avoidance cost as low as $58/ton. Future work will investigate additional firing after the ICR to reach the high inlet temperatures of modern gas turbines.

Comparison of Pre-Anode and Post-Anode Carbon Dioxide Separation for IGFC Systems

2009 ◽  
Author(s):  
Eric Liese
Keyword(s):  
Fuel Cell ◽  
Power Density ◽  
Co2 Capture ◽  
Coal Gasification ◽  
Lower Efficiency ◽  
Carbon Dioxide Separation ◽  
Thermodynamic Simulations ◽  
Integrated Gasification ◽  
Fuel Cell Anode ◽  
Cold Gas

This paper examines the arrangement of a solid oxide fuel cell (SOFC) within a coal gasification cycle, this combination generally being called an integrated gasification fuel cell cycle (IGFC). This work relies on a previous study performed by the National Energy Technology Laboratory (NETL) that details thermodynamic simulations of IGCC systems and considers various gasifier types and includes cases for 90% CO2 capture [1]. All systems in this study assume a Conoco Philips gasifier and cold gas clean up conditions for the coal gasification system (Cases 3 and 4 in the NETL IGCC report). Four system arrangements, cases, are examined. Cases 1 and 2 remove the CO2 after the SOFC anode. Case 3 assumes steam addition, a water-gas-shift (WGS) catalyst and a Selexol process to remove the CO2 in the gas cleanup section, sending a hydrogen-rich gas to the fuel cell anode. Case 4 assumes Selexol in the cold-gas cleanup section as in Case 3; however, there is no steam addition and the WGS takes places in the SOFC, and after the anode. Results demonstrate significant efficiency advantages compared to IGCC with CO2 capture. The hydrogen-rich case (Case 3) has better net electric efficiency compared to typical post-anode CO2 capture cases (Cases 1 and 2), with a simpler arrangement and similar SOFC area. Case 4 gives an efficiency similar to Case 3, but at a lower SOFC power density, or a lower efficiency at the same power density. Carbon deposition concerns are also discussed.

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