Optimal design of molten carbonate fuel cell combined cycle power plant and thermophotovoltaic system

Mehrpooya, Mehdi; Khodayari, Roozbeh; Moosavian, S.M. Ali; Dadak, Ali

doi:10.1016/j.enconman.2020.113177

Cited by 27 publications

(5 citation statements)

References 64 publications

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“…Aspen has the most suitable for industry and the most complete physical property system, rich unit operation modules, and powerful model/process analysis capabilities. This study employed Aspen HYSYS , and Aspen Plus , to simulate and optimize the energy consumption and performance of the designed process. The Peng-Rob state equation was selected as the fluid package to calculate the physical parameters of each phase during the process.…”

Section: Methodsmentioning

confidence: 99%

Design and Optimization of Carbon Dioxide Storage Technology: Energy Efficiency and Economic Analysis

Xu,

Lang,

Fan

et al. 2024

Energy Fuels

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The storage technology of carbon dioxide is an important part of the carbon capture, utilization, and storage (CCUS) process. This study employed Aspen series software to simulate and analyze the CO 2 storage unit of a CCUS project with an annual capacity of one million tons. Three CO 2 storage processes were simulated and optimized, including the process of high-pressure liquid carbon dioxide storage (HPLCD), optimized liquid carbon dioxide storage (OLCD), and hydrate carbon dioxide storage (HCD), and specific power consumption (SPC), energy efficiency, annual total cost, net present value (NPV), and internal rate of return (IRR) were analyzed. The results showed that the SPC of HPLCD, OLCD, and HCD were 0.0958, 0.0895, and 0.0614 kWh/kg CO 2 , respectively. The corresponding energy efficiencies were 54.61, 77.26, and 60.02%. Among the three processes, the HCD process exhibited the lowest SPC. After optimizing the liquid storage process with the genetic algorithm, the energy consumption was reduced by 9.24% compared to that of HPLCD. Economic analysis revealed that the annual total cost of the HPLCD, OLCD, and HCD processes is 65.11 million RMB, 60.78 million RMB, and 43.95 million RMB, respectively. Sensitivity analysis based on NPV and IRR for the three processes indicated that the CO 2 profit was the most sensitive factor, and the HCD process exhibited the highest NPV and IRR values. Compared to energy consumption and economic results, the HCD process was the optimal CO 2 storage technology at this scale, offering the highest investment value.

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Section: Methodsmentioning

confidence: 99%

Design and Optimization of Carbon Dioxide Storage Technology: Energy Efficiency and Economic Analysis

Xu,

Lang,

Fan

et al. 2024

Energy Fuels

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“…By adding gas turbine, steam engine and TPVC to MCFC, the total efficiency of the system was increased to 67.3%. It has been observed that a 22.72% increase in total energy efficiency has been achieved with the combined use of MCFC, gas turbine, steam engine and TPVCs [45]. Leal et al examined a hybrid system with SOFC and gas turbine.…”

Section: Hybrid Systems Created For Energy Recoverymentioning

confidence: 99%

Investigation of the use of fuel cell hybrid systems for different purposes

Kocakulak¹,

Arslan²

2023

eng.pers

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With the increase in global energy demand, air pollution becoming uncontrollable does not fall off the agenda. It is inevitable to use and spread of renewable energy sources to make energy production cleaner, more reliable and sustainable. In studies for this purpose, the use of fuel cell systems comes to the forefront thanks to its many advantages. The use of hybrid systems is becoming more common day by day in order to minimize the efficiency losses that may occur in the energy production, use and waste management process, to ensure energy reliability and to prevent systemic problems. In this study, hybrid systems created with fuel cells are discussed in detail, and examined under three main headings: hybrid systems created with renewable energy sources, created with storage devices, and created for energy recovery. It has been observed that the main purpose of hybrid systems created with renewable energy sources is to ensure energy reliability. In addition, the electrical energy required for the electrolysis of hydrogen used as fuel in fuel cells can be provided by photovoltaic panels or wind turbines, thus eliminating fuel storage and transportation problems. In hybrid systems created with storage devices, it is aimed to prevent instantaneous interruptions in the system by meeting the instantaneous power needed by the system and successful results have been achieved. In the hybrid systems created for energy recovery, it has been seen that it is possible to recover the heat and unburned fuel energy released from the fuel cell with thermophotovoltaic cells, gas turbines and heat exchangers.

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“…Alireza Haghighat Mamaghani et al [2] put forward a hybrid system integrating high-temperature MCFC-GT and ORC, obtaining higher exergy and electrical efficiencies through a multi-objective optimization technique. Mehdi Mehrpooya et al [3] developed a hybrid system consisting of MCFC, Gas Turbine, steam-based cycle, and Thermo Photo Voltaic system, achieving an efficiency of 67.3%. Liqiang Duan et al [4] proposed a novel pressurized MCFC hybrid system with CO 2 capture.…”

Section: Introductionmentioning

confidence: 99%

Energy and exergy analysis of an ideal molten carbonate fuel cell (MCFC) and reheat & regenerative braysson cycle hybrid system

Soujanya,

Sastry,

Ramji

et al. 2024

Eng. Res. Express

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Direct energy conversion devices are gaining prominence because of their high efficiency, as the process involves the direct conversion of chemical energy to its electrical counterpart, bypassing the thermal energy phase. Fuel cells work on the principle of a chemical reaction between fuels like Hydrogen, Methane, propane, ammonia, and an oxidizer. The working temperature of the fuel cell is as high as (600 °C–700 °C). Generally, waste heat liberated from the fuel cells was used to generate power by running the Brayton (or) Rankine cycle. This work involves exergy and energy analysis on a hybrid system made of a Molten Carbonate Fuel Cell and reheat & regenerative Braysson cycle. Combining a molten carbonate fuel cell (MCFC) with a Braysson cycle results in a novel hybrid system that offers exciting possibilities for power generation. In the analysis, Molten Carbonate Fuel Cell is assumed to operate at 650 °C, and the turbine inlet temperature (TIT) range of the Braysson cycle is taken as 400 to 600 °C. It has been noticed that different optimum pressure ratio values exist to obtain maximum output of power and maximum efficiencies. Both the exergy and energy efficiencies of the combined cycle increase with the increase in turbine inlet temperature. This combined system depicts maximum energy and exergy efficiency of 96.84% and 95.13%, respectively. Destruction rates of exergy for individual equipment and the total system are also obtained as a function of TIT and pressure ratio. The exergy destruction rates are found to be maximum in the fuel cells. An optimum pressure ratio is found to be 1.4, where fuel consumption is the least and efficiencies are the maximum.

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Optimal design of molten carbonate fuel cell combined cycle power plant and thermophotovoltaic system

Cited by 27 publications

References 64 publications

Design and Optimization of Carbon Dioxide Storage Technology: Energy Efficiency and Economic Analysis

Design and Optimization of Carbon Dioxide Storage Technology: Energy Efficiency and Economic Analysis

Investigation of the use of fuel cell hybrid systems for different purposes

Energy and exergy analysis of an ideal molten carbonate fuel cell (MCFC) and reheat & regenerative braysson cycle hybrid system

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