Influences of corrugation profiles on entropy generation, heat transfer, pressure drop, and performance in a wavy channel

被引：125

作者：

Akbarzadeh, M. ^{[1
]}

Rashidi, S. ^{[1
]}

Esfahani, J. A. ^{[1
]}

机构：

[1] Ferdowsi Univ Mashhad, Dept Mech Engn, Mashhad 917751111, Iran

来源：

APPLIED THERMAL ENGINEERING | 2017年 / 116卷

关键词：

Wavy wall; Sinusoidal wall; Trapezoidal wall; Triangular wall; Entropy generation; Performance; LAMINAR FORCED-CONVECTION; NATURAL-CONVECTION; PROJECT MANAGERS; FLOW; EXCHANGER; SELECTION; WALL;

D O I：

10.1016/j.applthermaleng.2017.01.076

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A numerical simulation is performed on entropy generation and thermo-hydraulic performance of a wavy channel With three corrugation profiles. Sinusoidal, trapezoidal, and triangular shapes are considered as corrugation profiles for wavy walls of channel. The influences of these profiles and Reynolds numbers on entropy generation and thermo-hydraulic performance of a wavy channel are discussed in details. Moreover, the results of wavy channel are compared with straight one. Simulations are performed for the Reynolds numbers in the range of 400-1400. Governing equations are discretized by using a finite volume method (FVM) and SIMPLE algorithm. It was found that among wavy channels, the triangular channel provides the highest thermal entropy generation and follows by the sinusoidal and trapezoidal channels. There are 111%, 100%, and 116% decrements in thermal entropy generation for sinusoidal, trapezoidal, and triangular channels, respectively at Reynolds number between 400 and 1400. Finally, it is recommended to use a sinusoidal wall in a channel due to the high performance and low entropy generations. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：278 / 291

页数：14

共 27 条

[1] Numerical and experimental investigations on the heat transfer enhancement in corrugated channels using SiO2-water nanofluid [J].

Ahmed, M. A. ;

Yusoff, M. Z. ;

Ng, K. C. ;

Shuaib, N. H. .

CASE STUDIES IN THERMAL ENGINEERING, 2015, 6 (77-92) :77-92

[2] Minimization of exergy losses in a trapezoidal duct with turbulator, roughness and beveled corners [J].

Amirahmadi, S. ;

Rashidi, S. ;

Esfahani, J. Abolfazli .

APPLIED THERMAL ENGINEERING, 2016, 107 :533-543

[3]

[Anonymous], ASCE J CONSTR ENG MA

[4]

[Anonymous], 1980, Numerical heat transfer and fluid flow

[5] THERMODYNAMIC ANALYSIS OF FLUID FLOW IN CHANNELS WITH WAVY SINUSOIDAL WALLS [J].

Bahaidarah, Haitham M. S. ;

Sahin, Ahmet Z. .

THERMAL SCIENCE, 2013, 17 (03) :813-822

[6] Exergy analysis for a plate-fin triangular duct enhanced by a porous material [J].

Bashi, M. ;

Rashidi, S. ;

Esfahani, J. A. .

APPLIED THERMAL ENGINEERING, 2017, 110 :1448-1461

[7]

Bejan A., 1995, Entropy Generation Minimization: The Method of Thermodynamic Optimization of Finite-size Systems and Finite-Time Processes

[8] Influence of wavy wall and non-uniform heating on natural convection heat transfer and entropy generation inside porous complex enclosure [J].

Bhardwaj, Saurabh ;

Dalal, Amaresh ;

Pati, Sukumar .

ENERGY, 2015, 79 :467-481

[9] Effect of nano-particles on forced convection in sinusoidal-wall channel [J].

Heidary, H. ;

Kermani, M. J. .

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2010, 37 (10) :1520-1527

[10] AN AUTOMATED PROCEDURE FOR SELECTING PROJECT MANAGERS IN CONSTRUCTION FIRMS [J].

Jazebi, Fateme ;

Rashidi, Abbas .

JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT, 2013, 19 (01) :97-106

← 1 2 3 →