Thermoeconomic assessment and multiobjective optimization of a
            <scp>CCHP</scp>
            and
            <scp>MED</scp>
            hybrid system based on
            <scp>IR‐SOFC</scp>
            /
            <scp>MGT</scp>

You, Huailiang; Han, Jisheng; Liu, Yang; Chen, Daifen

doi:10.1002/er.7373

Cited by 11 publications

(1 citation statement)

References 54 publications

(52 reference statements)

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“…As an effective and promising solution, polygeneration technology can effectively meet a variety of needs, including electricity, cooling, heating, and even fuel and freshwater, in an environmentally friendly manner, which offers the possibility to alleviate the fossil energy crisis [3]. Therefore, the development and application of poly-generation technology hold significant implications for addressing the current energy crisis and environmental issues [4].…”

Section: Introductionmentioning

confidence: 99%

Thermo-Economic Analysis and Multi-Objective Optimization of a Poly-Generation System Based on Solid Oxide Fuel Cell/Gas Turbine/Multi-Effect Distillation and Absorption Chiller Using Biogas as Fuel

Liu,

Yu,

et al. 2023

Energies

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A poly-generation system for cooling, heating, power, and fresh water is proposed, based on SOFC/GT/MED and an absorption chiller, with biogas as fuel. The performance of the system under the designed condition is analyzed using energy, exergy, and economic methods. An efficiency of 69.02% for comprehensive energy utilization and 35.56% for exergy are demonstrated by simulation results under the designed condition. A freshwater production of 469.93 kg/h is achieved, and a cost rate of 22.51 USD/h is incurred by the system. The effects of various parameters on the system characteristics are examined. Multi-objective optimization methods are employed to determine the final optimum operating condition that yields the best results in two schemes with different objectives. In comparison to the initial design, the optimization of the first scheme results in a 4.58% increase in the comprehensive energy utilization rate and a 2.02% increase in the exergy efficiency. However, the cost rate of the entire system increases by 0.63 USD/h. On the other hand, the optimization of the second scheme leads to a 19.51 kW decrease in the total energy output, a 276.38 kg/h increase in the freshwater production rate, and a 0.42 USD/h decrease in the cost rate of the entire system.

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Section: Introductionmentioning

confidence: 99%

Thermo-Economic Analysis and Multi-Objective Optimization of a Poly-Generation System Based on Solid Oxide Fuel Cell/Gas Turbine/Multi-Effect Distillation and Absorption Chiller Using Biogas as Fuel

Liu,

Yu,

et al. 2023

Energies

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A study of mass transfer characteristics of secondary flows in a tubular solid oxide fuel cell for power density improvement

Zhao

Zeng

Hao

et al. 2022

Intl J of Energy Research

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Summary The low power density has impeded wider adoption of solid oxide fuel cell stacks in powering vehicles and airplanes. The stack power density could be improved by the secondary flow in the radial direction induced by inserts in fuel channels. In this study, we constructed a numerical model to examine the effect of secondary flows on the electrochemical performance of a counter‐flow type micro‐tubular SOFC with an insert consisting of several humps. We show the secondary flow could enhance the fuel convective mass transfer in the diffusion layer of the porous anode, enabling more fuel to enter the porous anode and more produced steam to leave the reaction layer. This significantly improves the methane reforming and electrochemical reaction rates. We also examined the influence of the geometric parameters of the inserts on the electrochemical performance of the SOFC. We demonstrate that by increasing the insert radius and number of humps, the output power density increases at the expense of higher pumping power requirements. However, the enhanced electrochemical reactions outweigh the demand for pumping power. Our work demonstrates the effectiveness of secondary flows on the SOFC electrochemical performance improvement and helps build a foundation for SOFC channel designs and optimizations. Highlights The effects of secondary flows on the electrochemical reactions are discussed. The secondary flow in radial direction could improve the SOFC power density. The influence of the insert geometric parameters is analyzed.

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Energy, exergy, economy analysis, and multi‐objective optimization of a novel integrated energy system by combining artificial neural network and whale optimization algorithm

Bian

You

Zhao

et al. 2022

Intl J of Energy Research

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Summary This study proposed a novel solid oxide fuel cell (SOFC)‐integrated system fueled by biogas production from anaerobic fermentation of organic municipal solid wastes. The proposed system composed of the organic Rankine cycle (ORC), the anaerobic digester (AD), the SOFC, Kalina cycle (KC), and the parabolic trough solar collector (PTSC) which provided heat for the continuous and stable operation of anaerobic fermentation. Firstly, the mathematical model was established and then the energy, exergy, and economy analysis were evaluated. The results showed that the total exergy efficiency and the cost rate achieved 30.96% and 19.68$/h under design conditions. It was found that the total exergy efficiency increased as the increasing in the evaporating pressure of ORC and the basic ammonia solution concentration, but it decreased with the increase in the solar radiation intensity. When the input temperature and the current density of SOFC were increased, the total exergy efficiency was increased firstly then decreased and reached the maximum value of 439.2 and 481 kW at the SOFC input temperature of 628.6°C and the current density of 8286 A/m2. Besides, the cost rate was increased with the increase of the power consumption of the main components. The Pareto frontier was obtained by using the non‐dominated sorting whale optimization algorithm (NSWOA) which was employed to perform the multi‐objective optimization, and the comprehensive decision‐making method (TOPSIS) was used to get the optimal solution. The optimal solution showed that the total exergy efficiency and the cost rate could reach 39.56% and 14.23 $/h, respectively. Furthermore, in order to reduce optimization time and improve the accuracy of surrogate model, this study examined an improved artificial neural network (ANN) algorithm combining data‐driven surrogate model and whale optimization algorithm (WOA) to replace the physical model. It was also found that the time using the developed surrogate model to obtain the optimal solution set spent only 5 minutes which is far less than the physical method which spent more than 40 hours under the same computer configuration.

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Thermoeconomic assessment and multiobjective optimization of a CCHP and MED hybrid system based on IR‐SOFC / MGT

Cited by 11 publications

References 54 publications

Thermo-Economic Analysis and Multi-Objective Optimization of a Poly-Generation System Based on Solid Oxide Fuel Cell/Gas Turbine/Multi-Effect Distillation and Absorption Chiller Using Biogas as Fuel

Thermo-Economic Analysis and Multi-Objective Optimization of a Poly-Generation System Based on Solid Oxide Fuel Cell/Gas Turbine/Multi-Effect Distillation and Absorption Chiller Using Biogas as Fuel

A study of mass transfer characteristics of secondary flows in a tubular solid oxide fuel cell for power density improvement

Energy, exergy, economy analysis, and multi‐objective optimization of a novel integrated energy system by combining artificial neural network and whale optimization algorithm

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