Hierarchical decomposition and optimization of thermal transformer performances

An optimization under constraints of heat transformer systems is presented. The hierarchical decomposition and endoreversibility principle are integrated to avoid the great number of variables in the analyzed optimization problem. The analysis method is applied on a solar absorption refrigerator in...

Full description

Saved in:
Bibliographic Details
Published in:Structural and multidisciplinary optimization 2010-09, Vol.42 (3), p.437-448
Main Authors: Fellah, Ali, Khir, Tahar, Brahim, Ammar Ben
Format: Article
Language:English
Subjects:
Computational Mathematics and Numerical Analysis
Cooling loads
Couplings
Decomposition
Design parameters
Economic analysis
Engineering
Engineering Design
Heat exchangers
Heat transformers
Industrial Application
Mathematical models
Optimization
Theoretical and Applied Mechanics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An optimization under constraints of heat transformer systems is presented. The hierarchical decomposition and endoreversibility principle are integrated to avoid the great number of variables in the analyzed optimization problem. The analysis method is applied on a solar absorption refrigerator in the purpose to define the optimum design parameters. The decomposition levels of an equivalent model are defined. The equation system governing the behavior of the chosen model is established using Lagrange method for optimization under constraints. These constraints are defined according to thermodynamic laws. The couplings between the optimal functional and conceptual parameters are defined. The temperature and pinch distributions through heat exchangers are determined. The performance limits of an endoreversible cycle are defined for different values of the cooling load. The contribution of the different component heat transfer areas and the times of transfer are deducted according to technical an economic analysis.
ISSN:1615-147X
1615-1488
DOI:10.1007/s00158-010-0505-y