Study on a gas-steam combined cycle system with CO 2 capture by integrating molten carbonate fuel cell

Duan, Liqiang; Zhu, Jingnan; Yue, Long; Yang, Yongping

doi:10.1016/j.energy.2014.07.006

Cited by 33 publications

(9 citation statements)

References 12 publications

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“…The ITM is a kind of nonporous, mixed‐conducting, ceramic membrane that has both the electronic and ionic conductivity when operating at a high temperature, usually 800–900°C. Its simplified schematic is shown in the previous work . The driving force of oxygen separation is the difference of oxygen partial pressure, so the oxygen partial pressure on the feed side ( P ′ O2 ) should be higher than the oxygen partial pressure on the permeate side (P″ O2 ).…”

Section: System Model and Performance Evaluationmentioning

confidence: 99%

Comparison study on different ITM-integrated MCFC hybrid systems with CO₂recovery using sweep gas

Duan

Yue

Gao

et al. 2016

Int. J. Energy Res.

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Summary Previous study shows the ITM (oxygen ion transfer membrane)‐integrated MCFC (molten carbonate fuel cell) hybrid system with CO2 recovery can maintain high efficiency; however, the oxygen partial pressure on the ITM permeate side is usually 1 atm, which requires a very high pressure ratio of the ITM air compressor in order to separate the oxygen; using the sweep gas can solve this problem. In this paper the ITM‐integrated MCFC hybrid systems with CO2 recovery using different sweep gases are studied. With the Aspen plus software, two systems with different sweep gases are established, and their performances are compared with the benchmark system without sweep gas; the effects of key parameters on the optimum system performance are also investigated. Results show that compared with the benchmark system, the efficiencies of the systems with sweep gases are increased and the pressure ratios of the air compressors are decreased; the system using pure CO2 as sweep gas can improve the system efficiency by 1.25%, which is superior to the system using the mixture gas of CO2 and H2O as sweep gas. Achievements from this paper will provide a valuable reference for CO2 recovery from the MCFC hybrid power system with lower energy consumption. Copyright © 2016 John Wiley & Sons, Ltd.

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Section: System Model and Performance Evaluationmentioning

confidence: 99%

Comparison study on different ITM-integrated MCFC hybrid systems with CO₂recovery using sweep gas

Duan

Yue

Gao

et al. 2016

Int. J. Energy Res.

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“…Several FC-GT hybrid systems have been studied, but only focusing on high-temperature fuel cells such as Solid Oxide Fuel Cells (SOFCs) [106,107] and Molten Carbonate Fuel Cells (MCFCs) [108][109][110][111][112]. Several working prototypes of such systems have been studied from Siemens-Westinghouse [113], Rolls-Royce Fuel Cell Systems [114], and Mitsubishi Hitachi Power Systems [115], etc.…”

Section: Introductionmentioning

confidence: 99%

High-Efficiency Combined Heat and Power through a High-Temperature Polymer Electrolyte Membrane Fuel Cell and Gas Turbine Hybrid System

2021

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High-temperature proton-exchange membrane fuel cells are a promising technology for distributed power generation thanks to their high-power density, high efficiency, low emissions, fast start-up, and excellent dynamic characteristics, together with their high tolerance to CO poisoning (i.e., CO in the feed up to 3%). In this paper, we present an innovative, simple, and efficient hybrid high-temperature proton-exchange membrane fuel cell gas turbine combined heat and power system whose fuel processor relies on partial oxidation. Moreover, we demonstrate that the state-of-the-art fuel processors based on steam reformation may not be the optimal choice for high-temperature proton-exchange membrane fuel cells’ power plants. Through steady-state modeling, we determine the optimal operating conditions and the performance of the proposed innovative power plant. The results show that the proposed hybrid combined heat and power system achieves an electrical efficiency close to 50% and total efficiency of over 85%, while a state-of-the-art system based on steam reformation has an electrical efficiency lower than 45%. The proposed innovative plant consists of a regenerative scheme with a limited power ratio between the turbine and fuel cell and limited optimal compression ratio. Therefore, micro-gas turbines are the most fitting type of turbomachinery for the hybrid system.

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“…Jang et al [47] predicted the working conditions and performance of a high-pressure ten-stage turbine of an ultra-supercritical steam turbine using computational fluid dynamics (CFD). Duan et al [48] developed a novel combined cycle with CO 2 capture which is integrated with molten carbonate fuel cell. Chmielniak et al [49] presented a comparison for an air/steam combined cycle by considering economic and thermodynamic analysis.…”

Section: Introductionmentioning

confidence: 99%

Multi-criteria performance optimization and analysis of a gas–steam combined power system

Gonca

Başhan

2019

J Braz. Soc. Mech. Sci. Eng.

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This paper reports a comprehensive investigation of performances for a gas-steam combined power system (GSCPS) by considering exergy and thermo-ecology criteria. The most known and important parameters such as power density, power output, exergy destruction, exergetic efficiency, ecological coefficient performance (ECOP) and effective ecological power density (EFECPOD) are investigated. The influences of turbine design parameters such as turbine speed, mass flow rate of the working fluid, pressure ratio, equivalence ratio, intake air temperatures and pressures, residual gas fraction, fluid temperatures in heat exchanger, the pressure of high-pressure steam turbine, the pressure of medium-pressure steam turbine, the pressure of low-pressure steam turbine, the pressure of open feedwater heater, the pressure of condenser on the performance specifications have been evaluated. The results indicated that the component properties have remarkable impacts on the performance parameters of the GSCPS.

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Study on a gas-steam combined cycle system with CO 2 capture by integrating molten carbonate fuel cell

Cited by 33 publications

References 12 publications

Comparison study on different ITM-integrated MCFC hybrid systems with CO₂recovery using sweep gas

Comparison study on different ITM-integrated MCFC hybrid systems with CO₂recovery using sweep gas

High-Efficiency Combined Heat and Power through a High-Temperature Polymer Electrolyte Membrane Fuel Cell and Gas Turbine Hybrid System

Multi-criteria performance optimization and analysis of a gas–steam combined power system

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Study on a gas-steam combined cycle system with CO 2 capture by integrating molten carbonate fuel cell

Cited by 33 publications

References 12 publications

Comparison study on different ITM-integrated MCFC hybrid systems with CO2recovery using sweep gas

Comparison study on different ITM-integrated MCFC hybrid systems with CO2recovery using sweep gas

High-Efficiency Combined Heat and Power through a High-Temperature Polymer Electrolyte Membrane Fuel Cell and Gas Turbine Hybrid System

Multi-criteria performance optimization and analysis of a gas–steam combined power system

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Comparison study on different ITM-integrated MCFC hybrid systems with CO₂recovery using sweep gas

Comparison study on different ITM-integrated MCFC hybrid systems with CO₂recovery using sweep gas