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Evaluation of optimal thermal-hydraulic characteristics ratio in microchannel heat exchangers

Evaluation of optimal thermal-hydraulic characteristics ratio in microchannel heat exchangers Abstract In this paper, an analytical method of microchannel heat exchanger characteristics optimization is described. An objective function that combines thermal-hydraulic and constructive parameters of a heat-exchanger such as number, diameter, and length of channels, was developed. Limitations on its application were determined. Influence of these parameters on the function’s value was analyzed. It is demonstrated that for each fixed amount of microchannels and its length, an optimal channel diameter exists. Formulas for optimal ratio of length, diameter, and number of microchannels evaluation were derived. It was shown that the maximum value of the objective function corresponds to a thin heat exchange matrix that consists of a large number of short channels with small diameter. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Thermophysics and Aeromechanics Springer Journals

Evaluation of optimal thermal-hydraulic characteristics ratio in microchannel heat exchangers

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Publisher
Springer Journals
Copyright
2015 Pleiades Publishing, Ltd.
ISSN
0869-8643
eISSN
1531-8699
DOI
10.1134/S0869864315060086
Publisher site
See Article on Publisher Site

Abstract

Abstract In this paper, an analytical method of microchannel heat exchanger characteristics optimization is described. An objective function that combines thermal-hydraulic and constructive parameters of a heat-exchanger such as number, diameter, and length of channels, was developed. Limitations on its application were determined. Influence of these parameters on the function’s value was analyzed. It is demonstrated that for each fixed amount of microchannels and its length, an optimal channel diameter exists. Formulas for optimal ratio of length, diameter, and number of microchannels evaluation were derived. It was shown that the maximum value of the objective function corresponds to a thin heat exchange matrix that consists of a large number of short channels with small diameter.

Journal

Thermophysics and Aeromechanics – Springer Journals

Published: Nov 1, 2015

References

  • Heat exchanger: From micro- to multi-scale design optimization
    L. Luo, Y. Fan, D. Tondeur
  • Concepts and realization of microstructure heat exchangers for enhanced heat transfer
    J.J. Brandner, E. Anurjew, L. Bohn, E. Hansjosten, T. Henning, U. Schygulla, A. Wenka, K. Schubert
  • Thermal-hydraulic performance of small scale microchannel and porous-media heat-exchangers
    P.-X. Jiang, M.-H. Fan, G.-S. Shu, Z.-P. Ren
  • Convective heat transfer in microchannels
    V.K. Samalam
  • Optimization of conduits’ shape in micro heat exchangers
    H.H. Bau
  • Uniform channel micro heat exchangers
    X. Yin, H.H. Bau
  • Optimization of micro heat exchanger: CFD
    K. Foli, T. Okaba, M. Olhofer, Y. Jon, B. Sendhoff
  • Design and fabrication of a cross flow micro heat exchanger
    C. Harris, M. Despa, K. Kelly
  • Optimization of counterflow heat exchanger geometry through minimization of entropy generation
    P.P.P.M. Lerou, T.T. Veenstra, J.F. Burger, H.J.M. ter Brake, H. Rogalla
  • Development and Investigation of Highly Efficient Heat-exchanging Apparatuses of the Matrix and Planar Types for Compact Low-temperature Systems and Setups
  • Microchannel heat exchangers — present and perspectives
    T. Popescu
  • Miniaturization technologies applied to energy systems
    A. Ameel, R.O. Warrington, R.S. Wegeng, M.K. Drost
  • Microchannel heat exchanger — Constructive and Functional Characteristics (in Romanian)
    T. Popescu
  • Fluid flow in microchannels
    G. Hetsroni, A. Mosyak, E. Pogrebnyak, L.P. Yarin
  • Liquid Transport in Micron and Submicron Channels
    J. Pfahler, J. Harley, H. Bau
  • Microchannels for applications in liquid dosing and flow-rate measurement
    M. Richter, P. Woiss, D. Weib
  • Characterization of frictional pressure drop for liquid flows through microchannels
    J. Judy, D. Maynes, B.W. Webb
  • Single-phase flow characteristics and effect of dissolved gases on heat transfer near saturation conditions in microchannels
    P. Balasubramanian
  • Evolution of microchannel flow passages–thermohydraulic performance and fabrication technology
    S.G. Kandlikar, W.J. Grande
  • Single phase pressure drop in microchannels
    P. Hrnjak, X. Tu
  • Proc. 14th Int. Scientific and Practical Conference “Advanced Technologies”
    A.S. Lobasov and A.V. Minakov, Hydrodynamic modelling of fluid flows in channels, in
  • Simulation of hydrodynamics and convective heat transfer in microchannels
    A.V. Minakov, A.S. Lobasov, A.A. Dekterev
  • Numerical simulation of heat and mass transfer processes in microchannels using CFD-package sFlow
    A.S. Lobasov, A.V. Minakov
  • Experimental determination of friction factors for straight and curved microchannels
    V.M. Aniskin, K.V. Adamenko, A.A. Maslov
  • Pressure measurement inside the microchannels of different shape
    V.M. Aniskin, K.V. Adamenko, A.A. Maslov
  • Compact Heat Exchangers
    A.L. London
  • Heat Exchangers of Power Plants. Textbook for Higher Schools, Yu.M. Brodov (Ed.), “Sokrat”, Ekaterinburg, 2003.
    Heat Exchangers of Power Plants. Textbook for Higher Schools, Yu.M. Brodov
  • Heat Exchange and Drag at a Laminar Fluid Flow in Pipes
    B.S. Petukhov