A novel trigeneration system based on solid oxide fuel cell-gas turbine integrated with compressed air and thermal energy storage concepts: Energy, exergy, and life cycle approaches

Roushenas, Ramin; Zarei, Ehsan; Torabi, Morteza

doi:10.1016/j.scs.2020.102667

Cited by 50 publications

(2 citation statements)

References 46 publications

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“…These studies investigate pairing a CAES system with a pressurized SOFC system operating at ≈10 bar using a high-temperature (≈950 • C) electrolyte-supported SOFC. More recently, Roushenas et al [13,14] explored the exergetics and economics of a trigeneration integrated system based on a combination of SOFC+CAES and a turbocharger. A similar hybrid configuration utilizing a molten carbonate fuel cell instead of a turbocharger was analyzed by Jienkulsawad et al [15].…”

Section: Introductionmentioning

confidence: 99%

Techno-Economic Analysis of a Thermally Integrated Solid Oxide Fuel Cell and Compressed Air Energy Storage Hybrid System

Buchheit,

Noring,

Iyengar

et al. 2023

Energies

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Natural-gas-fueled solid oxide fuel cell (SOFC) systems have the potential for high-efficiency conversion of carbon to power due to the underlying electrochemical conversion process while readily facilitating carbon capture through the separation of the fuel and oxidant sources. Compressed air energy storage (CAES) technology can potentially store significant quantities of energy for later use with a high round-trip efficiency and lower cost when compared with state-of-the-art battery technology. The base load generation capability of SOFC can be coupled with CAES technology to provide a potentially flexible, low-carbon solution to meet the fluctuating electricity demands imposed by the increasing share of intermittent variable renewable energy (VRE) production. SOFC and CAES can be hybridized through thermal integration to maximize power output during periods of high electrical demand and then store power when either demand is low or renewable generation reduces power prices. The techno-economics of a low-carbon hybrid SOFC and CAES system was developed and investigated in the present study. The proposed hybrid system was found to be cost-competitive with other power-generating base-load facilities when power availability was considered. The hybrid system shows increased resilience to changes in a high VRE grid market scenario.

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Section: Introductionmentioning

confidence: 99%

Techno-Economic Analysis of a Thermally Integrated Solid Oxide Fuel Cell and Compressed Air Energy Storage Hybrid System

Buchheit,

Noring,

Iyengar

et al. 2023

Energies

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show abstract

“…In fuel-cell-based tri-generation plants, the waste heat from a fuel cell is used to supply heat and run the heat-driven refrigeration cycle to produce cooling power. There are many studies [1][2][3][4][5][6][7] of tri-generation systems focusing on fuel cells with high-quality waste heat sources, such as phosphoric acid fuel cells, molten carbonate fuel cells, and solid-oxide fuel cells, whereas their coupling with low-temperature fuel cells is relatively untapped [8]. Additionally, according to [9], more than 80% of the total estimated waste heat in the United States is in the 77-300 • F (25-149 • C) temperature range.…”

Section: Introductionmentioning

confidence: 99%

Tri-Generation System Configuration Selection Based on Energy and Exergy Analyses

et al. 2022

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A tri-generation system combining cooling, heating, and power generation can contribute to increased system efficiency and thereby reduce greenhouse gas emissions. This study proposed a novel concept using 100-kW polymer electrolyte membrane fuel cells (PEMFCs) as the basis for a tri-generation system with an integrated heat pump and adsorption chiller for greenhouse use. Three configurations of heat pump loop were designed to recover the waste heat from PEMFCs and used either for direct heating or cooling power generation in adsorption cooling. Analyses were carried out in terms of primary energy rate (PER) and exergy efficiencies. Of those investigated, the layout with a heat pump and internal heat exchanger demonstrated the best performance, with PERs of the cooling and heating modes at 0.94 and 0.78, respectively. Additionally, the exergy analysis revealed that the exergies are mostly destroyed at the expansion valve and evaporator due to differences in pressure and temperature. These differences are minimized when the system layout contains a cascade heat pump loop or an internal heat exchanger, thus resolving the problem of exergy destruction. As a result, the total exergy destruction in the system was decreased from 61.11% to 49.18% and 46.60%, respectively. Furthermore, the proposed configurations showed 36.1% and 31.4% lower values in terms of energy consumption compared with relevant works in the heating mode and cooling mode, respectively.

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Exergoeconomic analysis and multi‐objective whale optimization of an integrated solid oxide fuel cell and energy storage system using liquefied natural gas cold energy

Pan

Binama

et al. 2022

Intl J of Energy Research

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Summary A multigeneration system comprising solid oxide fuel cell, compressed air energy storage, gas turbine, supercritical CO2 recompression Brayton cycle (S‐CO2), and organic flash Rankine cycle (OFRC) based on liquefied natural gas cold energy is proposed. The system integrates peak shaving, heating, cooling, power generation, and energy storage, solving the imbalance between the supply and demand of renewable energy. It is comprehensively analyzed from the thermodynamic, economic, and exergoeconomic perspectives to evaluate the performance of the three phases (full time, charging period, and discharging period). The evaluation shows that the exergy analysis of the multigeneration system alone is not comprehensive, and the exergoeconomic analysis is more necessary. Additionally, the S‐CO2 coupled with the OFRC generates power in a more efficient way than the S‐CO2 coupled with the Organic Rankine cycle (ORC) or Organic Flash cycle (OFC) does. Finally, the NSGA‐II and multi‐objective whale algorithms are employed to optimize the system. The results show that the multi‐objective whale algorithm is slightly better than the NSGA‐II. Moreover, the optimized round‐trip efficiency (RTE) and levelized cost of electricity (LCOE) are 68.64% and 0.053 $ kWh−1, respectively. Compared with the base design point, the RTE improves by 1.93%, and the LCOE decreases by 3.64%.

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A novel trigeneration system based on solid oxide fuel cell-gas turbine integrated with compressed air and thermal energy storage concepts: Energy, exergy, and life cycle approaches

Cited by 50 publications

References 46 publications

Techno-Economic Analysis of a Thermally Integrated Solid Oxide Fuel Cell and Compressed Air Energy Storage Hybrid System

Techno-Economic Analysis of a Thermally Integrated Solid Oxide Fuel Cell and Compressed Air Energy Storage Hybrid System

Tri-Generation System Configuration Selection Based on Energy and Exergy Analyses

Exergoeconomic analysis and multi‐objective whale optimization of an integrated solid oxide fuel cell and energy storage system using liquefied natural gas cold energy

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