Araştırma Makalesi

Entropi üretimi ve termal hidrolik performansa dayalı eksenel olarak düz kanatlı kam şekilli ve eliptik boru demetlerinin çok amaçlı optimizasyonu

Cilt: 16 Sayı: 4 30 Aralık 2025
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Multi-objective optimization of axially flat finned cam-shaped and elliptical tube banks based on entropy generation and thermal hydraulic performance

Abstract

The use of different tube geometries in tube bank heat exchangers has a significant impact on thermal hydraulic performance and entropy generation. This study determined the geometric dimensions and operating conditions of a tube bank with in-line arrangement of cam-shaped and elliptical tubes with axially fins using a numerical optimization method. In order to maintain equal heat transfer surface areas, equivalent diameters (D_e=12.7 mm) were assumed for the tube geometries (cam and elliptical). The longitudinal (N_L ) and transversal (N_T ) configurations consist of four tubes. Diagrams of the multi-objective optimization workflow were established for two different tube geometries. The objective functions selected here were the reduction of entropy generation S_gen and the increase in thermal hydraulic performance (THP). The geometric optimization variables were the transversal tube spacing (y_interval ), longitudinal tube spacing (x_interval ) and longitudinal fin length (L_fin ), which varied within the ranges D_e⁄4 and D_e, respectively. The average velocity at the channel inlet V_in was used as the optimization variable for the operating condition and varies within the range 1 m/s

Keywords

Kaynakça

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Ayrıntılar

Birincil Dil

İngilizce

Konular

Makine Mühendisliğinde Optimizasyon Teknikleri , Makine Mühendisliğinde Sayısal Yöntemler

Bölüm

Araştırma Makalesi

Yayımlanma Tarihi

30 Aralık 2025

Gönderilme Tarihi

23 Ekim 2025

Kabul Tarihi

16 Aralık 2025

Yayımlandığı Sayı

Yıl 1970 Cilt: 16 Sayı: 4

Kaynak Göster

IEEE
[1]M. Özkarakoç ve M. N. Kuru, “Multi-objective optimization of axially flat finned cam-shaped and elliptical tube banks based on entropy generation and thermal hydraulic performance”, DÜMF MD, c. 16, sy 4, ss. 1059–1066, Ara. 2025, doi: 10.24012/dumf.1809125.
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