Full Load and Part-Load Performance Prediction for Integrated SOFC and Microturbine Systems

2000 ◽  
Vol 122 (2) ◽  
pp. 239-246 ◽  
Author(s):  
Stefano Campanari
Keyword(s):  
Solid Oxide Fuel Cells ◽  
Electric Power ◽  
Performance Prediction ◽  
High Efficiency ◽  
Calculation Model ◽  
Solid Oxide ◽  
Small Scale ◽  
Oxide Fuel ◽  
Part Load ◽  
Small Capacity

During the last years, two new subjects among the others have raised interest in the field of small scale electric power generation: advanced microturbines and solid oxide fuel cells. This paper investigates the thermodynamic potential of the integration of the solid oxide fuel cell technology with microturbine systems, in order to obtain ultra-high efficiency small capacity plants, generating electric power in the range of 250 kW with 65 percent LHV net electrical efficiency and with the possibility of cogenerating heat. A detailed description of the calculation model is presented, capable of full and part-load performance analysis of the microturbine and of the integrated SOFC+microturbine system. [S0742-4795(00)01702-6]

scholarly journals Full Load and Part-Load Performance Prediction for Integrated SOFC and Microturbine Systems

1999 ◽  
Author(s):  
Stefano Campanari
Keyword(s):  
Solid Oxide Fuel Cells ◽  
Electric Power ◽  
Performance Prediction ◽  
High Efficiency ◽  
Calculation Model ◽  
Solid Oxide ◽  
Small Scale ◽  
Oxide Fuel ◽  
Part Load ◽  
Small Capacity

During the last years, two new subjects among the others have risen interest in the field of small scale electric power generation: advanced microturbines and Solid Oxide Fuel Cells. This paper investigates the thermodynamic potential of the integration of the Solid Oxide Fuel Cell technology with microturbine systems, in order to obtain ultra-high efficiency small capacity plants, generating electric power in the range of 250 kW with 65% LHV net electrical efficiency and with the possibility of cogenerating heat. A detailed description of the calculation model is presented, capable of full and part-load performances analysis of the microturbine and of the integrated SOFC+microturbine system.

An easy and innovative method based on spray-pyrolysis deposition to obtain high efficiency cathodes for Solid Oxide Fuel Cells

2016 ◽  
Vol 319 ◽  
pp. 48-55 ◽  
Author(s):  
L. dos Santos-Gómez ◽  
J.M. Porras-Vázquez ◽  
F. Martín ◽  
J.R. Ramos-Barrado ◽  
E.R. Losilla ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Spray Pyrolysis ◽  
High Efficiency ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Innovative Method ◽  
Spray Pyrolysis Deposition

Achieving Performance and Longevity with Butane-operated Low-temperature Solid Oxide Fuel Cells using Low-Cost Cu and CeO2 Catalysts

2021 ◽  
Author(s):  
Cam-Anh Thieu ◽  
Sungeun Yang ◽  
Ho-Il Ji ◽  
Hyoungchul Kim ◽  
Kyung Joong Yoon ◽  
...  
Keyword(s):  
Thin Film ◽  
Fuel Cells ◽  
Low Temperature ◽  
Solid Oxide Fuel Cells ◽  
High Efficiency ◽  
Operating Temperature ◽  
Low Cost ◽  
Solid Oxide ◽  
Oxide Fuel

Thin-film solid oxide fuel cells (TF-SOFCs) effectively lower the operating temperature of typical solid oxide fuel cells (SOFCs) below 600 °C, while maintaining high efficiency and using low-cost catalyst. But...

Efficiency Evaluation of Solid-Oxide Fuel Cells in Combined Cycle Operations

2009 ◽  
Vol 6 (2) ◽  
Author(s):  
C. M. Colson ◽  
M. H. Nehrir ◽  
M. C. Deibert ◽  
M. R. Amin ◽  
C. Wang
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
High Efficiency ◽  
Combined Cycle ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Modeling Simulation ◽  
Semi Empirical ◽  
Energy Conversion Devices ◽  
Capacity Method

Solid oxide fuel cells (SOFCs) are high-temperature, high-efficiency, combustionless electrochemical energy conversion devices that have potential for combined cycle applications. This paper intends to clarify and expand the efficiency discussions related to SOFC when operating in combined cycle (CC) systems. A brief analysis of the first and second thermodynamic laws is conducted and, building upon a previously developed SOFC dynamic model, operating fuel heating values are determined by utilizing the semi-empirical gas phase heat capacity method. As a result, accurate SOFC stack operational simulations are conducted to calculate its efficiency based on actual thermodynamic parameters. Furthermore, an analysis is conducted of a combined SOFC-CC system using dynamic modeling. Simulation results are given, which are intended to aid researchers in evaluating hybrid SOFC-CC generation systems.

Operation of the Siemens SOFC Generators CHP100 and SFC5 in a Mechanical Factory

2008 ◽  
Author(s):  
Vittorio Verda ◽  
Gianmichele Orsello ◽  
Gianni Disegna ◽  
Ferrante Debenedictis
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Electric Power ◽  
Electricity Generation ◽  
Solid Oxide ◽  
Energy Requirements ◽  
Oxide Fuel ◽  
Promising Technology ◽  
Commercial Scale

Solid Oxide Fuel Cells (SOFCs) are a promising technology for distributed electricity generation and cogeneration. Most of the installations of SOFC are small size fuel cells (of the order of decades of watts or few hundred watts) in laboratories. There are very few installations of commercial scale SOFC plants. In this paper the operating results obtained with two SOFC plants are presented. These plants, whose nominal electric power is 100 kW and 5 kW respectively, produce heat and power to contribute to the energy requirements of the Turbocare factory in Torino, Italy.

scholarly journals A simple model for solid oxide fuel cells

2020 ◽  
Author(s):  
Ghzzai Almutairi
Keyword(s):  
Experimental Data ◽  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
High Efficiency ◽  
Solid Oxide ◽  
Design Parameters ◽  
Oxide Fuel ◽  
Environment Pollution ◽  
Cell Potential ◽  
Basic Model

AbstractIt is widely accepted that solid oxide fuel cells (SOFCs) represent a promising energy conversion approach that deliver a myriad of benefits including low environment pollution, high efficiency, and system compactness. This paper describes the construction of a basic model based on ohmic considerations, mass transfer, and kinetics that can effectively evaluate the performance of small button SOFCs. The analysis of the data indicates that there is a close alignment between the cell potential calculated using the model and previous experimental data. As such, it can be concluded that the model can be employed to optimize, evaluate, or control the design parameters within a SOFC system.

Development of High Power Density Solid Oxide Fuel Cells (SOFCs) for Long-Term Operation

2010 ◽  
Vol 654-656 ◽  
pp. 2875-2878 ◽  
Author(s):  
Norbert H. Menzler ◽  
Wolfgang Schafbauer ◽  
Feng Han ◽  
Oliver Büchler ◽  
Robert Mücke ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
High Power ◽  
High Efficiency ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Term Operation ◽  
Novel Technologies ◽  
Power Outputs

Solid oxide fuel cells (SOFCs) enable environmentally friendly energy to be produced with high efficiency. The market entry of SOFC systems depends on the functionality of the components and on the costs. The SOFC has not yet reached market maturity. This presentation focuses on the possibilities for manufacturing SOFCs with high power outputs and long-term durability by using manufacturing technologies feasible in industry. For the past 15 years, FZ Jülich has been developing large-size so-called anode-supported SOFCs (up to 200 x 200 mm²) with reproducibly high power output (> 2 A/cm² at 800°C). Novel technologies for high-capacity manufacturing such as tape casting and roller coating have been introduced. Additionally, newly developed thin-film techniques have led to power outputs of more than 3 A/cm² at 800°C and more than 1.5 A/cm² below 700°C. These high power densities open up new possibilities for the operation of SOFCs at low temperatures to ensure low degradation and therefore long lifetimes.

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