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Arabian Journal for Science and Engineering
Published in: Arabian Journal for Science and Engineering 3/2021

02-11-2020 | Research Article--Mechanical Engineering

Selection of Optimum Heat Flux Distribution in Pipe Flow Under Laminar Forced Convection

Authors: Muhammad Ahmad Jamil, S. Z. Shuja, Syed M. Zubair

Published in: Arabian Journal for Science and Engineering | Issue 3/2021

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Abstract

The concept of non-uniform heat flux distributions has emerged because of its potential to make the design of thermal systems more flexible. Therefore, the current study highlights the impact of non-uniform heat flux distributions on the thermal characteristics of a high Prandtl number fluid for forced convective laminar flow regime in a horizontal pipe. The steady-state 2-D simulations have been employed using ANSYS Fluent. The variations in heat flux distributions as a wall boundary condition are systematically analyzed while keeping the total heat transfer constant. The results obtained for various distributions are compared in terms of a dimensionless maximum wall temperature (hot spot), local and average Nusselt numbers, and entropy generation rate. The analysis showed that the heat flux distributions significantly affected the heat transfer pattern. It was found that the hot spot temperature was lower for the descending heat flux boundary conditions compared to the ascending type of distributions. However, a higher entropy generation rate was observed for descending distributions as compared to ascending ones. It was also found that the ascending heat flux distributions provided higher average Nusselt number values than the descending cases of heat flux.
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Literature
1.
Choi, S.U.S.; Eastman, J.A.: Enhancing thermal conductivity of fluids with nanoparticles. In: ASME International Mechanical Engineering Congress & Exposition., San Francisco, CA (1995)
2.
Steam System Opportunity Assessment for the Pulp and Paper, Chemical Manufacturing, and Petroleum Refining Industries, Office of Enrgy Efficiency and Renewable Energy, U.S. Department of Energy (2002)
3.
Juntawong, S.; Charoenteeraboon, J.; Chansiri, G.; Tuntarawongsa, T.; Katewongsa, P.; Phaechamud, T.: Cream prepared from emulsifying polymer: effect of oil content, stirring intensity & mixing temperature. Res. J. Pharm. Biol. Chem. Sci. 1, 360–365 (2010)
4.
Yasuo, M.; Kozo, F.; Shinobu, T.; Masakuni, N.: Forced convective heat transfer in uniformly heated horizontal tubes 1st report: experimental study on the effect of buoyancy. Int. J. Heat Mass Transf. 9, 453–463 (1966)
5.
Bejan, A.; Lorente, S.: Design with Constructal Theory. Wiley, Hoboken (2008)MATH
6.
Eslami, M.; Jafarpur, K.: Thermal resistance in conductive constructal designs of arbitrary configuration: a new general approach. Energy Convers. Manag. 57, 117–124 (2012)
7.
Denton, J.C.: Analytical solution for heat conduction problem in composite slab and its implementation in constructal solution for cooling of electronics. Energy Convers. Manag. 48, 1089–1105 (2007)
8.
Marck, G.; Harion, J.; Nemer, M.; Russeil, S.; Bougeard, D.: A new perspective of constructal networks cooling a finite-size volume generating heat. Energy Convers. Manag. 52, 1033–1046 (2011)
9.
10.
Bejan, A.; Lorente, S.: Constructal law of design and evolution: physics, biology, technology, and society. J. Appl. Phys. 113, 151301 (2013)
11.
Hajmohammadi, M.R.; Poozesh, S.; Hosseini, R.: Radiation effect on constructal design analysis of a T-Y-shaped assembly of fins. J. Therm. Sci. Technol. 7, 677–692 (2012)
12.
Hajmohammadi, M.R.; Poozesh, S.; Campo, A.; Nourazar, S.S.: Valuable reconsideration in the constructal design of cavities. Energy Convers. Manag. 66, 33–40 (2013)
13.
Pouzesh, A.; Hajmohammadi, M.R.; Poozesh, S.: Investigations on the internal shape of constructal cavities intruding a heat generating body. Therm. Sci. 9, 609–618 (2015)
14.
Gen, C.L.: Progress in study on constructal theory and its applications. Sci. China Technol. Sci. 55, 802–820 (2012)
15.
Jun, F.H.; Gen, C.L.; Hui, X.Z.; Rui, F.S.: Constructal optimization for H-shaped multi-scale heat exchanger based on entransy theory. Sci. China Technol. Sci. 56, 299–307 (2013)
16.
Guo, J.; Xu, M.: The application of entransy dissipation theory in optimization design of heat exchanger. Appl. Therm. Eng. 36, 227–235 (2012)
17.
18.
Hajmohammadi, M.R.; Poozesh, S.; Rahmani, M.; Campo, A.: Heat transfer improvement due to the imposition of non-uniform wall heating for in-tube laminar forced convection. Appl. Therm. Eng. 61, 268–277 (2013)
19.
20.
Bejan, A.; Sciubba, E.: The optimal spacings of parallel plates cooled by forced convection. Int. J. Heat Mass Transf. 35, 3259–3264 (1992)
21.
Da Silva, A.K.; Lorente, S.; Bejan, A.: Constructal multi-scale structures for maximal heat transfer density. Energy 31, 620–635 (2006)
22.
Muftuoglu, A.; Bilgen, E.: Natural convection in an open square cavity with discrete heaters at their optimized positions. Int. J. Therm. Sci. 47, 369–377 (2008)
23.
Hajmohammadi, M.R.; Campo, A.; Nourazar, S.S.; Ostad, A.M.: Improvement of forced convection cooling due to the attachment of heat sources to a conducting thick plate. J. Heat Transf. 135, 124504 (2013)
24.
Hajmohammadi, M.R.; Rahmani, M.; Campo, A.; Joneydi Shariatzadeh, O.: Optimal design of unequal heat flux elements for optimized heat transfer inside a rectangular duct. Energy 68, 609–616 (2014)
25.
Sudhakar, T.V.V.; Balaji, C.; Venkateshan, S.P.: Optimal configuration of discrete heat sources in a vertical duct under conjugate mixed convection using artificial neural networks. Int. J. Therm. Sci. 48, 881–890 (2009)
26.
Sahin, A.Z.; Zubair, S.M.; Al-garni, A.Z.: Effect of fouling on operational cost in pipe flow due to entropy generation. Energy Convers. Manag. 41, 1485 (2000)
27.
Bejan, A.: Entropy Generation Minimization: The Method of Thermodynamic optimization of of Finite Size and Finite Time Processess. CRC Press, Boca Raton (1996)MATH
28.
Hermes, C.J.L.; Silva, W.L.E.; Castro, F.G.: Thermal-hydraulic design of fan-supplied tube-fin condensers for refrigeration cassettes aimed at minimum entropy generation. Appl. Therm. Eng. 36, 307–313 (2012)
29.
Guo, J.; Huai, X.: Optimization design of heat exchanger in an irreversible regenerative Brayton cycle system. Appl. Therm. Eng. 58, 77–84 (2013)
30.
Ramos-Alvarado, B.; Feng, B.; Peterson, G.P.: Comparison and optimization of single-phase liquid cooling devices for the heat dissipation of high-power LED arrays. Appl. Therm. Eng. 59, 648–659 (2013)
31.
Oztop, H.F.; Dagtekin, I.; Sahin, A.Z.: Second law analysis of fully developed laminar flow for rectangular ducts with semicircular ends. Int. Commun. Heat Mass Transf. 36, 725–730 (2009)
32.
Dagtekin, I.; Oztop, H.F.; Sahin, A.Z.: An analysis of entropy generation through a circular duct with different shaped longitudinal fins for laminar flow. Int. J. Heat Mass Transf. 48, 171–181 (2005)MATH
33.
Esfahani, J.A.; Shahabi, P.B.: Effect of non-uniform heating on entropy generation for the laminar developing pipe flow of a high Prandtl number fluid. Energy Convers. Manag. 51, 2087–2097 (2010)
34.
Zhu, X.W.; Zhao, J.Q.; Zhu, L.: Heat transfer fluctuation in a pipe caused by axially non-uniform heat distribution. Appl. Therm. Eng. 103, 314–322 (2016)
35.
Aydin, O.; Avci, M.: Laminar forced convective slip flow in a microduct with a sinusoidally varying heat flux in axial direction. Int. J. Heat Mass Transf. 89, 606–612 (2015)
36.
Seetharamu, K.N.; Leela, V.; Kotloni, N.: Numerical investigation of heat transfer in a micro-porous-channel under variable wall heat flux and variable wall temperature boundary conditions using local thermal non-equilibrium model with internal heat generation. Int. J. Heat Mass Transf. 112, 201–215 (2017)
37.
Liu, C.; Yang, S.; Chao, Y.; Ying, K.; Wang, C.: Effect of non-uniform heating on the performance of the microchannel heat sinks ☆. Int. Commun. Heat Mass Transf. 43, 57–62 (2013)
38.
Swain, A.; Das, M.K.: Flow boiling of distilled water over plain tube bundle with uniform and varying heat flux along the height of the tube bundle. Exp. Therm. Fluid Sci. 82, 222–230 (2017)
39.
Joneidi, M.H.; Hosseini, M.J.; Ranjbar, A.A.; Bahrampoury, R.: Experimental investigation of phase change in a cavity for varying heat flux and inclination angles. Exp. Therm. Fluid Sci. 88, 594–607 (2017)
40.
41.
42.
Okafor, I.F.; Dirker, J.; Meyer, J.P.: Asymmetrical non-uniform heat flux distributions for laminar flow heat transfer with mixed convection in a horizontal circular tube. Heat Transf. Eng. 40, 109–127 (2019)
43.
Imtiaz Hussain, M.; Lee, G.H.: Numerical and experimental heat transfer analyses of a novel concentric tube absorber under non-uniform solar flux condition. Renew. Energy 103, 49–57 (2017)
44.
Okafor, I.F.; Dirker, J.; Meyer, J.P.: Influence of non-uniform heat flux distributions on the secondary flow, convective heat transfer and friction factors for a parabolic trough solar collector type absorber tube. Renew. Energy. 108, 287–302 (2017)
45.
46.
Bejan, A.: A study of entropy generation in fundamental convective heat transfer. J. Heat Transf. 101, 718–725 (1979)
47.
Bejan, A.: Entropy Generation Through Heat and Fluid Flow. Wiley, Hoboken (1982)
48.
Hasan, M.Z.: Effects of nonuniform surface heat flux and uniform volumetric heating on blanket design for Fusion Reactor, Department of Mechanical, Aerospace and Nuclear Engineering and Institute for Plasma and Fusion Research, University of California,., Los Angeles (1988)
49.
Kolditz, O.: Finite Volume Method BT: Computational Methods in Environmental Fluid Mechanics. Presented at the (2002)
50.
Tam, L.M.; Ghajar, A.J.; Tam, H.K.: Contribution analysis of dimensionless variables for laminar and turbulent flow convection heat transfer in a horizontal tube using artificial neural network. Heat Transf. Eng. 29, 793–804 (2008)
Metadata
Title
Selection of Optimum Heat Flux Distribution in Pipe Flow Under Laminar Forced Convection
Authors
Muhammad Ahmad Jamil
S. Z. Shuja
Syed M. Zubair
Publication date
02-11-2020
Publisher
Springer Berlin Heidelberg
Published in
Arabian Journal for Science and Engineering / Issue 3/2021
Print ISSN: 2193-567X
Electronic ISSN: 2191-4281
DOI
https://doi.org/10.1007/s13369-020-05053-w

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