Multi-objective constructal design for a marine boiler considering entropy generation rate and power consumption

A marine boiler model composed of the major heat transfer components of evaporator, superheater and economizer is built in this paper. Constructal design for the marine boiler is performed based on the minimization of weighted sum function composed of entropy generation rate and power consumption. I...

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Main Authors: Huijun Feng, Lingen Chen, Zhuojun Xie, Wei Tang, Yanlin Ge
Format: Article
Language:English
Published: Elsevier 2022-11-01
Series:Energy Reports
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2352484721015110
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author Huijun Feng
Lingen Chen
Zhuojun Xie
Wei Tang
Yanlin Ge
author_facet Huijun Feng
Lingen Chen
Zhuojun Xie
Wei Tang
Yanlin Ge
author_sort Huijun Feng
collection DOAJ
description A marine boiler model composed of the major heat transfer components of evaporator, superheater and economizer is built in this paper. Constructal design for the marine boiler is performed based on the minimization of weighted sum function composed of entropy generation rate and power consumption. It reveals that the triple minimum weighted sum function can be gained by changing the dimensionless tube outer diameters of the evaporator, superheater and economizer. The weighted sum function of the marine boiler is reduced by 25.9% after triple minimizations, and its overall performance is evidently elevated. The multi-objective optimization considering the entropy generation rate and power consumption is further conducted by using NSGA-II, and the Pareto optimal set of the two performance indexes is gained. By using three decision methods to evaluate the Pareto optimal set, the deviation index of the LINMAP decision method is the smallest one. Therefore, the optimal structure obtained by LINMAP decision method is recommended in the marine boiler designs, which satisfies multiple design requirements for the practical boilers.
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spelling doaj.art-82ef01eb78bb4f809daabbdee5b87d952023-02-21T05:10:02ZengElsevierEnergy Reports2352-48472022-11-01815191527Multi-objective constructal design for a marine boiler considering entropy generation rate and power consumptionHuijun Feng0Lingen Chen1Zhuojun Xie2Wei Tang3Yanlin Ge4Institute of Thermal Science and Power Engineering, Wuhan Institute of Technology, Wuhan 430205, PR China; Hubei Provincial Engineering Technology Research Center of Green Chemical Equipment, Wuhan 430205, PR China; School of Mechanical & Electrical Engineering, Wuhan Institute of Technology, Wuhan 430205, PR ChinaInstitute of Thermal Science and Power Engineering, Wuhan Institute of Technology, Wuhan 430205, PR China; Hubei Provincial Engineering Technology Research Center of Green Chemical Equipment, Wuhan 430205, PR China; School of Mechanical & Electrical Engineering, Wuhan Institute of Technology, Wuhan 430205, PR China; Corresponding author at: Institute of Thermal Science and Power Engineering, Wuhan Institute of Technology, Wuhan 430205, PR China.College of Power Engineering, Naval University of Engineering, Wuhan 430033, PR ChinaCollege of Power Engineering, Naval University of Engineering, Wuhan 430033, PR ChinaInstitute of Thermal Science and Power Engineering, Wuhan Institute of Technology, Wuhan 430205, PR China; Hubei Provincial Engineering Technology Research Center of Green Chemical Equipment, Wuhan 430205, PR China; School of Mechanical & Electrical Engineering, Wuhan Institute of Technology, Wuhan 430205, PR ChinaA marine boiler model composed of the major heat transfer components of evaporator, superheater and economizer is built in this paper. Constructal design for the marine boiler is performed based on the minimization of weighted sum function composed of entropy generation rate and power consumption. It reveals that the triple minimum weighted sum function can be gained by changing the dimensionless tube outer diameters of the evaporator, superheater and economizer. The weighted sum function of the marine boiler is reduced by 25.9% after triple minimizations, and its overall performance is evidently elevated. The multi-objective optimization considering the entropy generation rate and power consumption is further conducted by using NSGA-II, and the Pareto optimal set of the two performance indexes is gained. By using three decision methods to evaluate the Pareto optimal set, the deviation index of the LINMAP decision method is the smallest one. Therefore, the optimal structure obtained by LINMAP decision method is recommended in the marine boiler designs, which satisfies multiple design requirements for the practical boilers.http://www.sciencedirect.com/science/article/pii/S2352484721015110Constructal theoryMarine boilerEntropy generation ratePower consumptionMulti-objective optimizationNSGA-II
spellingShingle Huijun Feng
Lingen Chen
Zhuojun Xie
Wei Tang
Yanlin Ge
Multi-objective constructal design for a marine boiler considering entropy generation rate and power consumption
Energy Reports
Constructal theory
Marine boiler
Entropy generation rate
Power consumption
Multi-objective optimization
NSGA-II
title Multi-objective constructal design for a marine boiler considering entropy generation rate and power consumption
title_full Multi-objective constructal design for a marine boiler considering entropy generation rate and power consumption
title_fullStr Multi-objective constructal design for a marine boiler considering entropy generation rate and power consumption
title_full_unstemmed Multi-objective constructal design for a marine boiler considering entropy generation rate and power consumption
title_short Multi-objective constructal design for a marine boiler considering entropy generation rate and power consumption
title_sort multi objective constructal design for a marine boiler considering entropy generation rate and power consumption
topic Constructal theory
Marine boiler
Entropy generation rate
Power consumption
Multi-objective optimization
NSGA-II
url http://www.sciencedirect.com/science/article/pii/S2352484721015110
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