Fuel consumption analysis of a residential cogeneration system using a solid oxide fuel cell with regulation of heat to power ratio

2013 ◽  
Vol 38 (36) ◽  
pp. 16338-16343 ◽  
Author(s):  
J. Lamas ◽  
H. Shimizu ◽  
E. Matsumura ◽  
J. Senda
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Fuel Consumption ◽  
Solid Oxide ◽  
Power Ratio ◽  
Oxide Fuel ◽  
Cogeneration System ◽  
Residential Cogeneration

scholarly journals Feasibility of CaO/CuO/NiO sorption-enhanced steam methane reforming integrated with solid-oxide fuel cell for near-zero-CO2 emissions cogeneration system

2018 ◽  
Vol 230 ◽  
pp. 241-256 ◽  
Author(s):  
Giuseppe Diglio ◽  
Piero Bareschino ◽  
Erasmo Mancusi ◽  
Francesco Pepe ◽  
Fabio Montagnaro ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Co2 Emissions ◽  
Solid Oxide ◽  
Methane Reforming ◽  
Oxide Fuel ◽  
Steam Methane Reforming ◽  
Steam Methane ◽  
Cogeneration System

scholarly journals Electrochemical Modeling and Techno -Economic Analysis of Solid Oxide Fuel Cell for Residential Applications

2020 ◽  
Author(s):  
Sadegh Safari ◽  
Hassan Ali Ozgoli
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Power Efficiency ◽  
Operating Conditions ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
System Efficiency ◽  
Purchasing Cost ◽  
Cogeneration System ◽  
Legal Constraints

In this paper, an electrochemical model was developed to investigate the performance analysis of a Solid Oxide Fuel Cell (SOFC). The curves of voltage, power, efficiency, and the generated heat of cell have been analyzed to accomplish a set of optimal operating conditions. Further, a sensitivity analysis of major parameters that have a remarkable impact on the economy of the SOFC and its residential applications has been conducted. The results illustrate that the current density and cell performance temperature have vital effects on the system efficiency, output power and heat generation of cell of the SOFC. The best system efficiency is approached up to 53.34 % while implementing combined heat and power generation might be further improved up to 86 %. The economic evaluation results indicate that parameters such as overall efficiency, natural gas price and additional produced electricity that has prone to be sold to the national power grid, have a significant impact on the SOFC economy. The results indicate the strong reduction in the purchasing cost of the SOFC, i.e. not more than $2500, and improving the electrical efficiency of SOFC, i.e. not less than 42 %, can be the breakeven points of investment on such systems in residential applications. Also, it is found that the target of this SOFC cogeneration system for residential applications in Iran is relying on considerable technological enhancement of the SOFC, as well as life cycle improvement; improvement in governmental policies; and profound development in infrastructures to mitigate legal constraints.

scholarly journals Energy Management for Hybrid Power Generation Using Solid Oxide Fuel Cell

2020 ◽  
Author(s):  
A Haseltalab ◽  
L van Biert ◽  
BTW Mestemaker
Keyword(s):  
Power Generation ◽  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Fuel Consumption ◽  
Energy Management ◽  
Solid Oxide ◽  
Energy Sources ◽  
Oxide Fuel ◽  
Gas Engine ◽  
Hybrid Power

The shipping industry is facing increasing requirements to decrease its environmental footprints. This challenge is being addressed through the use of alternative fuels and adoption of novel energy sources in advanced power and propulsion systems. In this paper, an energy management approach is proposed to determine the optimal split between different energy sources of a vessel with hybrid power generation. The power and propulsion system of the vessel consists of a gas engine-generator set and a solid oxide fuel cell, both fed with liquefied natural gas, and a battery. Specific fuel consumption curves and transient capabilities of the engine and fuel cell are used to determine the optimal split and the battery is used to deal with the fast load transients during heavy operations and also providing power during low power demanding activities. The performance of the proposed approach is evaluated for a dredging vessel with a DC power and propulsion system and compared to a benchmark vessel powered by gas engine-generator sets only. The results indicate a 16.5% reduction in fuel consumption compared to a benchmark non-hybrid power system and conventional power management.

A novel design of power-cooling cogeneration system driven by solid oxide fuel cell waste heat in ocean-going vessels

2021 ◽  
pp. 128532
Author(s):  
Zhongkai Zhao ◽  
Zhiping Wang ◽  
Shutao Xie ◽  
Mingliang Zhang ◽  
Tiancheng Ouyang
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Waste Heat ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Cogeneration System ◽  
Novel Design

scholarly journals Life Cycle Assessment of a Biogas-Fed Solid Oxide Fuel Cell (SOFC) Integrated in a Wastewater Treatment Plant

Energies ◽  
2019 ◽  
Vol 12 (9) ◽  
pp. 1611 ◽  
Author(s):  
Marta Gandiglio ◽  
Fabrizio De Sario ◽  
Andrea Lanzini ◽  
Silvia Bobba ◽  
Massimo Santarelli ◽  
...  
Keyword(s):  
Life Cycle ◽  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Thermal Energy ◽  
Treatment Plant ◽  
Primary Energy ◽  
Solid Oxide ◽  
Waste Water Treatment Plant ◽  
Oxide Fuel ◽  
Cogeneration System

This work assesses the environmental impacts of an industrial-scale Solid Oxide Fuel Cell (SOFC) plant fed by sewage biogas locally available from a Waste Water Treatment Plant (WWTP). Three alternative scenarios for biogas exploitation have been investigated and real data from an existing integrated SOFC-WWTP have been retrieved: the first one (Scenario 1) is the current scenario, where biogas is exploited in a boiler for thermal-energy-only production, while the second one is related to the installation of an efficient SOFC-based cogeneration system (Scenario 2). A thermal energy conservation opportunity that foresees the use of a dynamic machine for sludge pre-thickening enhancement is also investigated as a third scenario (Scenario 3). The life cycle impact assessment (LCIA) has shown that producing a substantial share of electrical energy (around 25%) via biogas-fed SOFC cogeneration modules can reduce the environmental burden associated to WWTP operations in five out of the seven impact categories that have been analyzed in this work. A further reduction of impacts, particularly concerning global warming potential and primary energy demand, is possible by the decrease of the thermal request of the digester, thus making the system independent from natural gas. In both Scenarios 2 and 3, primary energy and CO2 emissions embodied in the manufacture and maintenance of the cogeneration system are neutralized by operational savings in less than one year.

Performance Evaluation of the Micro Cogeneration System Composed of Microturbine, Solid Oxide Fuel Cell, and H2O/LIBR Absorption Refrigerator

2005 ◽  
Author(s):  
Hideo Yoshida ◽  
Yuhei Iwamoto ◽  
Akio Ueda ◽  
Motohiro Saito
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Solid Oxide ◽  
Inlet Temperature ◽  
Present System ◽  
Oxide Fuel ◽  
Cogeneration System ◽  
Basic Characteristics ◽  
Absorption Refrigerator ◽  
Energy Balances

A micro cogeneration system composed of a microturbine (MGT), a solid oxide fuel cell (SOFC) and an absorption refrigerator is analyzed thermodynamically. The performance analysis is conducted on the basis of the macroscopic mass and energy balances with additional empirical correlations and operating data. First, the basic characteristics of the power generation (MGT+SOFC) section and the absorption refrigerator section are clarified. Second, under the conditions of the cell temperature of 900 °C and the turbine inlet temperature of 900 °C, the optimum design points are determined. Furthermore, the energy saving obtained by the present system through the annual operation is also evaluated in the light of the measured data in Japan. As a result, the annual fuel consumptions are reduced by 32%, 36% and 42%, for apartments, offices and hotels, respectively.

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