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Appl. Sci. 2017, 7(6), 554; doi:10.3390/app7060554

Optimal Design of an Air-to-Air Heat Exchanger with Cross-Corrugated Triangular Ducts by Using a Particle Swarm Optimization Algorithm

1
School of Mechano-Electronic Engineering, Guilin University of Electronic Technology, Guilin 541004, China
2
Department of Environmental Engineering, Shan Xi University, Taiyuan 030006, China
3
Department of Energy and Built Environment, Guilin University of Aerospace Technology, Guilin 541004, China
*
Author to whom correspondence should be addressed.
Received: 22 March 2017 / Revised: 8 May 2017 / Accepted: 17 May 2017 / Published: 26 May 2017
(This article belongs to the Special Issue Sciences in Heat Pump and Refrigeration)
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Abstract

Air-to-air heat exchangers with cross-corrugated triangular ducts are widely used in various industrial fields to recover waste heat. The geometric parameters of the heat exchangers greatly affect the performance and total annual cost of these systems. In this study, the effectiveness-number of transfer units (ε-NTU) method was utilized to develop the thermal mathematical model, which was verified by comparing it with previous research. The configuration parameters of the heat exchanger were optimized in this study. The particle swarm optimization (PSO) algorithm was applied using both single and multi-objective algorithm. The colburn factor (j factor), friction factor (f factor), and comprehensive thermal hydraulic performance index (JF factor) were considered as objective functions to be optimized using a single objective and multi-objective algorithm. Then, the entropy generation rate and total annual cost were optimized by using a multi-objective PSO algorithm. In addition, to identify the influential geometric parameters, a global sensitivity analysis was performed. The sensitivity analysis showed that the apex angle θ, channel height H, and heat exchanger height Lh influenced the performance and annual total cost of these systems. View Full-Text
Keywords: cross-corrugated triangular ducts; air-to-air heat exchanger; particle swarm analysis (PSO); global sensitivity analysis cross-corrugated triangular ducts; air-to-air heat exchanger; particle swarm analysis (PSO); global sensitivity analysis
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Liang, C.; Tong, X.; Lei, T.; Li, Z.; Wu, G. Optimal Design of an Air-to-Air Heat Exchanger with Cross-Corrugated Triangular Ducts by Using a Particle Swarm Optimization Algorithm. Appl. Sci. 2017, 7, 554.

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