Abstract
This paper presents a numerical investigation on the flow and heat-transfer characteristics of liquid lithium and helium in printed circuit heat exchanger (PCHE) channels with pulsating flow introduced. The effects of the mass flowrate of helium, frequency, and amplitude of pulsating flow were examined, respectively. The findings indicate that the introduced pulsating flow has a positive effect on heat transfer at a lower Reynolds number. With the increase of pulsating frequency, the heat-transfer enhancement may decline, and the pressure drop is reduced, with Colburn factor (j) and Fanning friction factor (f) varying marginally. In the flow state with enhanced heat transfer, keeping a lower pulsating frequency, the heat-transfer enhancement ratio E(h) exhibits an approximately linear increase with the pulsating amplitude. Meanwhile, the average pressure drop, Colburn factor (j) and Fanning friction factor (f) also increase with the amplitude, with the fluctuation amplitude of each parameter directly proportional to the amplitude.
References
1.
Baek
, S.
, Kim
, J.-H.
, Jeong
, S.
, and Jung
, J.
, 2012
, “Development of Highly Effective Cryogenic Printed Circuit Heat Exchanger (PCHE) With Low Axial Conduction
,” Cryogenics
, 52
(7–9
), pp. 366
–374
. 2.
Huang
, C.
, Cai
, W.
, Wang
, Y.
, Liu
, Y.
, Li
, Q.
, and Li
, B.
, 2019
, “Review on the Characteristics of Flow and Heat Transfer in Printed Circuit Heat Exchangers
,” Appl. Therm. Eng.
, 153
, pp. 190
–205
. 3.
Lu
, P.
, Yang
, Q.
, Wei
, J.
, Wu
, P.
, and Huang
, H.
, 2022
, “Comprehensive Numerical Analysis on Flow and Heat Transfer Characteristics of Printed Circuit Heat Exchanger With Fins
,” ASME J. Therm. Sci. Eng. Appl.
, 14
(7
), p. 071015
. 4.
Shi
, H.
, Di Miceli Raimondi
, N.
, Cabassud
, M.
, and Gourdon
, C.
, 2022
, “Experimental Study of Heat Transfer Coefficient in Heat Exchanger Reactors With Square Millimetric Zigzag Channels
,” Chem. Eng. Process-Process Intensification
, 182
, p. 109194
. 5.
Sheikholeslami
, M.
, Gorji-Bandpy
, M.
, and Ganji
, D. D.
, 2015
, “Review of Heat Transfer Enhancement Methods: Focus on Passive Methods Using Swirl Flow Devices
,” Renew. Sust. Energy Rev.
, 49
, pp. 444
–469
. 6.
Kim
, S. Y.
, Kang
, B. H.
, and Hyun
, J. M.
, 1993
, “Heat Transfer in the Thermally Developing Region of a Pulsating Channel Flow
,” Int. J. Heat Mass Transfer
, 36
(17
), pp. 4257
–4266
. 7.
Kurtulmuş
, N.
, and Sahin
, B.
, 2020
, “Experimental Investigation of Pulsating Flow Structures and Heat Transfer Characteristics in Sinusoidal Channels
,” Int. J. Mech. Sci.
, 167
, p. 105268
. 8.
Huang
, H.
, Bian
, Y.
, Liu
, Y.
, Zhang
, F.
, Arima
, H.
, and Ikegami
, Y.
, 2018
, “Numerical and Experimental Analysis of Heat Transfer Enhancement and Pressure Drop Characteristics of Laminar Pulsatile Flow in Grooved Channel With Different Groove Lengths
,” Appl. Therm. Eng.
, 137
, pp. 632
–643
. 9.
Guo
, Z.
, and Sung
, H. J.
, 1997
, “Analysis of the Nusselt Number in Pulsating Pipe Flow
,” Int. J. Heat Mass Transfer
, 40
(10
), pp. 2486
–2489
. 10.
Elshafei
, E. A. M.
, Safwat Mohamed
, M.
, Mansour
, H.
, and Sakr
, M.
, 2008
, “Experimental Study of Heat Transfer in Pulsating Turbulent Flow in a Pipe
,” Int. J. Heat Fluid Flow
, 29
(4
), pp. 1029
–1038
. 11.
Wantha
, C.
, 2016
, “Effect and Heat Transfer Correlations of Finned Tube Heat Exchanger Under Unsteady Pulsating Flows
,” Int. J. Heat Mass Transfer
, 99
, pp. 141
–148
. 12.
Moschandreou
, T.
, and Zamir
, M.
, 1997
, “Heat Transfer in a Tube With Pulsating Flow and Constant Heat Flux
,” Int. J. Heat Mass Transfer
, 40
(10
), pp. 2461
–2466
. 13.
Xu
, C.
, Xu
, S.
, Wei
, S.
, and Chen
, P.
, 2020
, “Experimental Investigation of Heat Transfer for Pulsating Flow of GOPs-Water Nanofluid in a Microchannel
,” Int. Commun. Heat Mass Transfer
, 110
, p. 104403
. 14.
Lovik
, R.
, Abraham
, J.
, Minkowycz
, W.
, and Sparrow
, E.
, 2009
, “Laminarization and Turbulentization in a Pulsatile Pipe Flow
,” Numer. Heat Transfer, Part A: Appl.
, 56
(11
), pp. 861
–879
. 15.
Gebreegziabher
, T.
, Sparrow
, E.
, Abraham
, J.
, Ayorinde
, E.
, and Singh
, T.
, 2011
, “High-Frequency Pulsatile Pipe Flows Encompassing All Flow Regimes
,” Numer. Heat Transfer, Part A: Applications
, 60
(10
), pp. 811
–826
. 16.
Mehta
, B.
, and Khandekar
, S.
, 2015
, “Local Experimental Heat Transfer of Single-Phase Pulsating Laminar Flow in a Square Mini-Channel
,” Int. J. Therm. Sci.
, 91
, pp. 157
–166
. 17.
Hemida
, H.
, Sabry
, M.-N.
, Abdel-Rahim
, A.
, and Mansour
, H.
, 2002
, “Theoretical Analysis of Heat Transfer in Laminar Pulsating Flow
,” Int. J. Heat Mass Transfer
, 45
(8
), pp. 1767
–1780
. 18.
Mehta
, B.
, and Khandekar
, S.
, 2010
, “Effect of Periodic Pulsations on Heat Transfer in Simultaneously Developing Laminar Flows: a Numerical Study
,” International Heat Transfer Conference
, Washington, DC
, Aug. 8–13
, pp. 569
–576
, Paper No. HTC14-22519.19.
Nandi
, T. K.
, and Chattopadhyay
, H.
, 2016
, “Numerical Simulation of Heat Transfer on Simultaneously Developing Flow in Microchannel Under Inlet Pulsation
,” Int. J. Fluid Mech. Res.
, 43
(3
), pp. 218
–233
. 20.
Liu
, B.
, Lu
, M.
, Shui
, B.
, Sun
, Y.
, and Wei
, W.
, 2022
, “Thermal-Hydraulic Performance Analysis of Printed Circuit Heat Exchanger Precooler in the Brayton Cycle for Supercritical CO2 Waste Heat Recovery
,” Appl. Energy
, 305
, p. 117923
. 21.
Wijayanta
, A. T.
, Yaningsih
, I.
, Aziz
, M.
, Miyazaki
, T.
, and Koyama
, S.
, 2018
, “Double-Sided Delta-Wing Tape Inserts to Enhance Convective Heat Transfer and Fluid Flow Characteristics of a Double-Pipe Heat Exchanger
,” Appl. Therm. Eng.
, 145
, pp. 27
–37
. Copyright © 2023 by ASME
You do not currently have access to this content.
