LAMINAR FORCED CONVECTION AND PERFORMANCE EVALUATION IN A SQUARE DUCT HEAT EXCHANGER PLACED WITH WAVY THIN RIB

被引：0

作者：

Boonloi A. ^{[1
]}

Jedsadaratanachai W. ^{[2
]}

机构：

[1] Department of Mechanical Engineering Technology, College of Industrial Technology, King Mongkut’s University of Technology North Bangkok, Bangkok

[2] Department of Mechanical Engineering, Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok

来源：

Frontiers in Heat and Mass Transfer | 2020年 / 15卷

关键词：

heat exchanger; heat transfer; numerical investigation; thermal performance; Wavy thin rib;

D O I：

10.5098/HMT.15.13

中图分类号：

学科分类号：

摘要：

Simulated examinations on convective heat transfer and flow topology in a square duct heat exchanger placed with wavy thin rib (WTR) are presented. The influences of WTR heights, pitch distances and flow directions on flow and heat transfer characteristics are investigated for the laminar flow regime at the inlet condition (Re = 100 – 2000). The finite volume method (SIMPLE algorithm) is picked to analyze the numerical problem. The numerical validations; grid independence and verification of the smooth duct, are presented. The simulated results of the heat exchanger duct placed with WTR are reported in terms of flow and heat transfer visualizations. The relations of the Nu/Nu0, f/f0 and TEF with Re and P/H in the heat exchanger square duct inserted with WTR are also plotted. The numerical result reveals that the heat transfer and friction loss increase when augmenting the Reynolds number and WTR height. The optimum pitch spacing ratio may give the highest heat transfer rate and thermal performance. © 2020, Tech Science Press. All rights reserved.

引用

共 50 条

[21] THEORETICAL ANALYSIS OF FORCED LAMINAR CONVECTION HEAT-TRANSFER IN ENTRANCE REGION OF AN ELLIPTIC DUCT
GILBERT, DE
LEAY, RW
BARROW, H
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1973, 16 (07) : 1501 - 1503
[22] THERMAL BOUNDARY-CONDITIONS FOR LAMINAR DUCT FLOW FORCED CONVECTION HEAT-TRANSFER
SHAH, RK
LONDON, AL
MECHANICAL ENGINEERING, 1973, 95 (06) : 61 - 61
[23] Laminar forced convection heat transfer from a heated square cylinder in a Bingham plastic fluid
Nirmalkar, N.
Chhabra, R. P.
Poole, R. J.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2013, 56 (1-2) : 625 - 639
[24] NUMERICAL SIMULATION OF LAMINAR FORCED CONVECTION HEAT TRANSFER OF TWO SQUARE PRISMS INSIDE NANOFLUIDS
Jayhooni, S. M. H.
Nowzari, M. H.
Jafarpur, K.
Baharanchi, A. Abbasi
INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION - 2012, VOL 9, PTS A AND B, 2013, : 735 - 742
[25] Mathematical optimisation of laminar forced convection heat transfer through a vascularised solid with square channels
Olakoyejo, O. T.
Bello-Ochende, T.
Meyer, J. P.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2012, 55 (9-10) : 2402 - 2411
[26] Comparison between laminar and turbulent heat transfer in a stationary square duct with transverse or angled rib turbulators
Murata, A
Mochizuki, S
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2001, 44 (06) : 1127 - 1141
[27] Thermohydraulic Performance Improvement in Heat Exchanger Square Duct Inserted with 45° Inclined Square Ring
Boonloi, Amnart
Jedsadaratanachai, Withada
MODELLING AND SIMULATION IN ENGINEERING, 2020, 2020
[28] Experimental studies on mixed convection heat transfer in laminar flow through a plain square duct
Patil, S. V.
Babu, P. V. Vijay
HEAT AND MASS TRANSFER, 2012, 48 (12) : 2013 - 2021
[29] Experimental studies on mixed convection heat transfer in laminar flow through a plain square duct
S. V. Patil
P. V. Vijay Babu
Heat and Mass Transfer, 2012, 48 : 2013 - 2021
[30] Numerical study of laminar forced convection fluid flow and heat transfer from a triangular cylinder placed in a channel
De, Arnab Kumar
Dalai, Amaresh
JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 2007, 129 (05): : 646 - 656

← 1 2 3 4 5 →