Thermoeconomic optimization using an evolutionary algorithm of a trigeneration system driven by a solid oxide fuel cell

Sadeghi, Mohsen; Chitsaz, Ata; Mahmoudi, S.M.S.; Rosen, Marc A.

doi:10.1016/j.energy.2015.07.067

Cited by 113 publications

(33 citation statements)

References 42 publications

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“…The purchase equipment cost of the components can be calculated from [21,[23][24][25]. Purchase cost of the MHD with updated cost index is calculated using [26] and [27].…”

Section: Exergoeconomic Analysismentioning

confidence: 99%

4E Analysis of Integrated MHD-Combined Cycle

Esmaeilzadehazimi

Manesh²,

Heleyleh

et al. 2019

International Journal of Thermodynamics

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In recent years, there have been increasing studies on topping cycles of combined cycle power plants with very high working temperature (about 3000 K). One of the thermal cycles, which have the ability to work in this temperature range, is MHD-Magneto hydrodynamic-cycle. MHD cycle can operate in two states. One state is the open cycle, and the other one is the close cycle. In both mentioned states there is a large amount of waste heat that can be recovered. It seems that the use of recovered heat from MHD cycles as the heat source for a gas turbine cycle namely Brayton according to their working temperature is promising. The objective of this study focused on energetic, exergetic, exergoeconomic and environmental (4E) analysis and evaluation of a proposed cycle based on the integration of combined cycle with MHD generator as the topping cycle. In this regard, the thermodynamic simulation of the plant has been performed. To verify of the thermodynamic simulation, the results have been compared with Thermoflex software and the data in the literature. In addition, exergetic, exergoeconomic, and environmental modeling and evaluation have been performed through computer code. The results show the good accuracy of the thermodynamic simulation for the integrated system. Also, the proposed cycle has a higher efficiency with the lower cost of exergy destruction and lower emission.

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“…The purchase equipment cost of the components can be calculated from [21,[23][24][25]. Purchase cost of the MHD with updated cost index is calculated using [26] and [27].…”

Section: Exergoeconomic Analysismentioning

confidence: 99%

4E Analysis of Integrated MHD-Combined Cycle

Esmaeilzadehazimi

Manesh²,

Heleyleh

et al. 2019

International Journal of Thermodynamics

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“…In the present work, the SPECO method based on exergy, unit cost of exergy, exergy efficiency and auxiliary costing equations for each component of an energy conversion system is used [27,28]. The cost rate balance equation for a component receiving heat and producing power is as follows:…”

Section: Thermoeconomic Analysismentioning

confidence: 99%

Exergoeconomic Performance Comparison and Optimization of Single-Stage Absorption Heat Transformers

et al. 2017

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Three single-stage absorption heat transformer (SSHT) configurations are modeled, analyzed and compared from the viewpoints of thermodynamics and economics, using the Engineering Equation Solver (EES) software. In addition, a multi-objective optimization is carried out for the three configurations to specify the optimal design point considering the second law efficiency and the product unit cost as two objective functions. The configurations differ from one another considering the number of heat exchangers used in them. The results show that the coefficient of performance (COP) and exergy coefficient of performance (ECOP) for configuration 3 are around 35% and 30% higher than the corresponding values for configuration 1, respectively. Also, configuration 2 is found to be more economic with a product unit cost of about 21% and 5% lower than those for configurations 1 and 3, respectively. Furthermore, it is observed that relatively higher absorber temperatures can be achieved by configurations 2 and 3 compared to configuration 1. It is concluded from the multi-objective optimization that the conditions at which the evaporator, condenser and absorber temperatures are 86.51 • C, 39.03 • C and 123.1 • C, respectively, represents an optimal solution.

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“…Abusoglu and Kanoglu [32] reviewed various exergo-economic methodologies developed in the literature. In this study, the specific exergy costing method (SPECO) has been adopted, one of the broadly accepted approaches by researchers [33].…”

Section: Exergo-economic Analysismentioning

confidence: 99%

Comparative study of solid oxide fuel cell coupled absorption refrigeration system for green and sustainable refrigerated transportation

Pandya

Venkataraman

Steinberger‐Wilckens

2020

Applied Thermal Engineering

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A vapour absorption refrigeration system (VARS) coupled with a solid oxide fuel cell (SOFC) is proposed for different types of refrigerated trucks (large, medium and small) as a favourable alternative to conventional diesel engine driven vapour compression refrigeration systems. An SOFC-supported VARS has the novel attributes of negligible environmental impact and the ability to keep the refrigeration system running while the vehicle engine is switched off, In addition, the SOFC system produces electricity which can be utilised for other operations on the vehicle. This in turn reduces the load on the main diesel engine of the vehicle. This research paper presents a comprehensive thermo-economic study for two different SOFC system configurations namely; series and parallel to optimise the SOFC subsystem layout. Moreover, a benefit function to optimise the SOFC stack size and operating conditions has been identified considering four performance parameters, namely; thermodynamic efficiency, weight of the system, greenhouse gas (GHG) emissions, and cost of cogeneration. The analysis was conducted on various categories of refrigerated trucks. The results show that a parallel configuration has an enhanced thermo-economic performance and requires a 45-65% lower number of SOFC cells to obtain the required refrigeration load in comparison to the series configuration. Simulation results indicated that the proposed SOFC-VARS for large, medium and small refrigerated trucks can output 3.3 kW, 12.8 kW and 18.7 kW of electric power and 1 kW, 4 kW and 6 kW of refrigeration power respectively. It was also found that the SOFC-coupled VARS is able to cater to the required refrigeration load with negligible emissions of GHGs and zero emissions of particulate matter and NOx compared to other refrigerated transportation technologies.

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Thermoeconomic optimization using an evolutionary algorithm of a trigeneration system driven by a solid oxide fuel cell

Cited by 113 publications

References 42 publications

4E Analysis of Integrated MHD-Combined Cycle

4E Analysis of Integrated MHD-Combined Cycle

Exergoeconomic Performance Comparison and Optimization of Single-Stage Absorption Heat Transformers

Comparative study of solid oxide fuel cell coupled absorption refrigeration system for green and sustainable refrigerated transportation

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