Multi-objective optimization of a pressurized solid oxide fuel cell – gas turbine hybrid system integrated with seawater reverse osmosis
TL;DR: In this article, a power and water co-generation system is optimized in terms of two objectives, maximum exergy efficiency and minimum cost rate, using a genetic algorithm, to improve the capacity and efficiency of distributed power and fresh water generation in coastal industrial facilities affected by regional water scarcity.
About: This article is published in Energy.The article was published on 2017-03-15. It has received 31 citations till now. The article focuses on the topics: Exergy efficiency & Desalination.
Citations
More filters
TL;DR: In this paper, a biomass-based solid oxide fuel cell integrated with a gas turbine, a reverse osmosis desalination unit, and double-effect absorption chiller is proposed for power generation, cooling and fresh water production.
103 citations
TL;DR: In this article, a two-level multi-objective optimization of planning and operation together is proposed for a multi-energy system for microgrid in which a wind-powered power-to-gas (P2G) is coupled with a detailed thermoeconomic model of solid oxide fuel cell/gas turbine (SOFC/GT) hybrid system.
57 citations
TL;DR: In this article, a solid oxide fuel cell (SOFC) jet hybrid engine with anode and cathode recirculation is proposed and investigated where the SOFC power system is instead of the turbine to provide power for the compressor.
41 citations
TL;DR: In this paper, a high-temperature electrolysis-based power-to-methane (PtM) process and its integration with oxyfuel combustion to co-generate synthetic methane, heat and power was investigated.
Abstract: The storage of excess or low-carbon electricity in the form of synthetic gas using power-to-gas technologies is a promising approach to enable high shares of renewables in power generation and reduce the fuel carbon content. However, the efficiency of standalone, low-temperature electrolysis-based power-to-methane (PtM) processes is presently limited. As a way of enhancing the potential of this technology to support the decarbonization of energy systems, this study investigates a high-temperature electrolysis-based PtM process and its integration with oxyfuel combustion to co-generate synthetic methane, heat and power. The system incorporates in-situ heat, oxygen, carbon dioxide (CO2) and water recycling. The energy and exergy-based performance of the compound system and its main structures are investigated using an overpotential-based electrochemical model. Depending on electrolysis operating temperature (800–1000 °C) and pressure (1–10 bar), overall energy and exergy efficiencies range from 75.8% to 79.3% and 64.5% to 67.4%, respectively. In quasi-continuous operation, a 6.4 MWe (AC input) hybrid PtM system would avoid approximately 1.9 GWhe of electricity consumption for oxygen-air separation, and sink 6.6 kt of CO2 from the oxyfuel co-generation plant annually. In parallel, 3.1 MWth of heat could be recovered from the pre-methanation compressor and oxyfuel conversion products for use in external applications. Based on a carbon balance evaluation from initial resource extraction to SNG conversion, the PtM-oxyfuel hybridization investigated could effectively contribute to raise the electricity greenhouse gas (GHG) emission threshold below which SNG could environmentally compete with natural gas, relative to low-temperature electrolysis-based PtM and conventional post-combustion CO2 capture.
38 citations
TL;DR: In this paper, a comprehensive review of hybridizing the fuel cell to a wide range of other energy devices and conducts a few comparisons between them is conducted, including gas turbines, thermoelectric generators, electric devices, heat pumps, absorption chillers, desalination plants, and other unique configurations.
Abstract: Fuel cell hybridization with different energy devices is recently a highly effective method to improve the fuel cell performance for supplying power and heat, and even allow for supplying cooling energy and water. This review article performs a comprehensive review of hybridizing the fuel cell to a wide range of other energy devices and conducts a few comparisons between them. These devices include gas turbines, thermoelectric generators, electric devices (batteries, supercapacitors, solar energy, etc.), heat pumps, absorption chillers, desalination plants, and other unique configurations. It is shown that each device improves the fuel cell performance in a unique aspect; The gas turbine and thermoelectric generator increases the overall electrical efficiency of the high temperature and lower temperature fuel cells, respectively; The electric devices improve the fuel cell’s dynamic response or increase the total power output; Heat pumps can increase the total heating capacity and allow for cooling energy production; Absorption chillers allow for energy-efficient cooling energy production when the heat is not required; Desalination plants allow for freshwater production. Moreover, the energy management strategies that are commonly used in gas turbines and electric power subsystems can potentially be reused for the other above-mentioned hybrid systems.
37 citations
References
More filters
Book•
01 Sep 1988
TL;DR: In this article, the authors present the computer techniques, mathematical tools, and research results that will enable both students and practitioners to apply genetic algorithms to problems in many fields, including computer programming and mathematics.
Abstract: From the Publisher:
This book brings together - in an informal and tutorial fashion - the computer techniques, mathematical tools, and research results that will enable both students and practitioners to apply genetic algorithms to problems in many fields
Major concepts are illustrated with running examples, and major algorithms are illustrated by Pascal computer programs No prior knowledge of GAs or genetics is assumed, and only a minimum of computer programming and mathematics background is required
52,797 citations
01 Jan 1989
TL;DR: This book brings together the computer techniques, mathematical tools, and research results that will enable both students and practitioners to apply genetic algorithms to problems in many fields.
Abstract: From the Publisher:
This book brings together - in an informal and tutorial fashion - the computer techniques, mathematical tools, and research results that will enable both students and practitioners to apply genetic algorithms to problems in many fields.
Major concepts are illustrated with running examples, and major algorithms are illustrated by Pascal computer programs. No prior knowledge of GAs or genetics is assumed, and only a minimum of computer programming and mathematics background is required.
33,034 citations
Book•
01 Jan 2000
TL;DR: In this paper, the first edition of this paper, the authors presented an analysis of fuel cell systems and their performance in terms of Molar Gibbs Free Energy Calculations (GFE) and Open Circuit Voltage.
Abstract: Preface. Foreword to the first edition. Acknowledgements. Abbreviations. Symbols. Introduction. Efficiency and Open Circuit Voltage. Operational Fuel Cell Voltages. Proton Exchange Membrane Fuel Cells. Alkaline Electrolyte Fuel Cells. Direct Methanol Fuel Cells. Medium and High Temperature Fuel Cells. Fuelling Fuel Cells. Compressors, Turbines, Ejectors, Fans, Blowers, and Pumps. Delivering Fuel Cell Power. Fuel Cell Systems Analysed. Appendix 1: Change in Molar Gibbs Free Energy Calculations. Appendix 2: Useful Fuel Cell Equations. Index.
4,202 citations
Book•
28 Nov 1995
TL;DR: In this article, the authors present an overview of thermal system design using thermodynamics, modeling, and design analysis, including exergy analysis, energy analysis, and economic analysis.
Abstract: Introduction to Thermal System Design Thermodynamics, Modeling, and Design Analysis Exergy Analysis Heat Transfer, Modeling, and Design Analysis Applications with Heat and Fluid Flow Applications with Thermodynamics and Heat and Fluid Flow Economic Analysis Thermoeconomic Analysis and Evaluation Thermoeconomic Optimization Appendices Index
3,050 citations