In the present work, a thermal modeling is conducted for optimal design of compact heat exchangers in order to minimize cost and entropy generation. In this regard, an method is applied for estimation of the heat exchanger pressure drop, as well as effectiveness. Fin pitch, fin height, fin offset length, cold stream flow length, no-flow length, and hot stream flow length are considered as six decision variables. Fast and elitist nondominated sorting genetic algorithm (i.e., nondominated sorting genetic algorithm II) is applied to minimize the entropy generation units and the total annual cost (sum of initial investment and operating and maintenance costs) simultaneously. The results for Pareto-optimal front clearly reveal the conflict between two objective functions, the number of entropy generation units and the total annual cost. It reveals that any geometrical changes, which decrease the number of entropy generation units, lead to an increase in the total annual cost and vice versa. Moreover, for prediction of the optimal design of the plate fin heat exchanger, an equation for the number of entropy generation units versus the total annual cost is derived for the Pareto curve. In addition, optimization of heat exchangers based on considering exergy destruction revealed that irreversibilities, such as pressure drop and high temperature difference between cold and hot streams, play a key issue in exergy destruction. Thus, more efficient heat exchanger leads to have a heat exchanger with higher total cost rate. Finally, the sensitivity analysis of change in the optimum number of entropy generation units and the total annual cost with change in the decision variables of the plate fin heat exchanger is also performed, and the results are reported.
Skip Nav Destination
e-mail: pouryaahmadi81@gmail.com
e-mail: hassan.hajabdollahi@gmail.com
e-mail: ibrahim.dincer@uoit.ca
Article navigation
Research Papers
Cost and Entropy Generation Minimization of a Cross-Flow Plate Fin Heat Exchanger Using Multi-Objective Genetic Algorithm
Pouria Ahmadi,
Pouria Ahmadi
Department of Mechanical Engineering,
e-mail: pouryaahmadi81@gmail.com
Sharif University of Technology
, 11155–9567, Tehran, Iran
Search for other works by this author on:
Hassan Hajabdollahi,
Hassan Hajabdollahi
Department of Mechanical Engineering,
e-mail: hassan.hajabdollahi@gmail.com
Iran University of Science and Technology (IUST)
, 11155–9567, Tehran, Iran
Search for other works by this author on:
Ibrahim Dincer
Ibrahim Dincer
Department of Mechanical Engineering, Faculty of Engineering and Applied Science,
e-mail: ibrahim.dincer@uoit.ca
University of Ontario Institute of Technology (UOIT)
, 2000 Simcoe Street North, Oshawa, ON, L1H 7K4, Canada
Search for other works by this author on:
Pouria Ahmadi
Department of Mechanical Engineering,
Sharif University of Technology
, 11155–9567, Tehran, Irane-mail: pouryaahmadi81@gmail.com
Hassan Hajabdollahi
Department of Mechanical Engineering,
Iran University of Science and Technology (IUST)
, 11155–9567, Tehran, Irane-mail: hassan.hajabdollahi@gmail.com
Ibrahim Dincer
Department of Mechanical Engineering, Faculty of Engineering and Applied Science,
University of Ontario Institute of Technology (UOIT)
, 2000 Simcoe Street North, Oshawa, ON, L1H 7K4, Canadae-mail: ibrahim.dincer@uoit.ca
J. Heat Transfer. Feb 2011, 133(2): 021801 (10 pages)
Published Online: November 3, 2010
Article history
Received:
December 15, 2009
Revised:
March 18, 2010
Online:
November 3, 2010
Published:
November 3, 2010
Citation
Ahmadi, P., Hajabdollahi, H., and Dincer, I. (November 3, 2010). "Cost and Entropy Generation Minimization of a Cross-Flow Plate Fin Heat Exchanger Using Multi-Objective Genetic Algorithm." ASME. J. Heat Transfer. February 2011; 133(2): 021801. https://doi.org/10.1115/1.4002599
Download citation file:
Get Email Alerts
Cited By
Related Articles
Multi-Objective Optimization of Heat Exchanger Design by Entropy Generation Minimization
J. Heat Transfer (August,2010)
Heat Transfer Properties and Energy-Exergy Efficiency in a Finned Cross-Flow Heat Recovery Unit
J. Heat Transfer (April,2011)
Energy-Economic and Exergy-Environment Performance Evaluation of Compact Heat Exchanger With Turbulator Passive Inserts Using THDNF
J. Thermal Sci. Eng. Appl (February,2023)
Scenario-Based Multi-Objective Optimization of an Air-Based Building-Integrated Photovoltaic/Thermal System
J. Sol. Energy Eng (February,2018)
Related Proceedings Papers
Related Chapters
Mixed-Model Assembly Line Balancing Concerning Choice Complexity
International Conference on Mechanical Engineering and Technology (ICMET-London 2011)
A Collaborative Framework for Distributed Multiobjective Combinatorial Optimization
International Conference on Computer and Computer Intelligence (ICCCI 2011)
Comparing Probabilistic Graphical Model Based and Gaussian Process Based Selections for Predicting the Temporal Observations
Intelligent Engineering Systems through Artificial Neural Networks, Volume 20