淡江大學機構典藏:Item 987654321/106135
English  |  正體中文  |  简体中文  |  Items with full text/Total items : 62805/95882 (66%)
Visitors : 3913351      Online Users : 610
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
    •  Adv. Search
    Home ‧ Login ‧ Upload ‧ Help ‧ About ‧ Administer Goto mobile version


    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/106135


    Title: Improvement in Device Performance of Power-Law Fluids in Double-pass Concentric Circular Heat Exchangers
    Authors: Ho, Chii-Dong;Lin, Gwo-Geng;Ku, Kaung-Kai;Lin, Cheng-yi
    Keywords: Shear Thinning Fluid;Power-Law Fluids;Concentric Circular Heat Exchanger;Conjugated Graetz Problem;Orthogonal Expansion Technique
    Date: 2015-07
    Issue Date: 2016-04-22 13:21:18 (UTC+8)
    Abstract: Conjugated Graetz problems in considering the heat transfer behavior of power-law fluids flowing through a double-pass concentric circular tube with uniform wall temperature are studied theoretically and experimentally. The analytical solution was obtained using an orthogonal expansion technique in terms of power series. The mathematical formulation of such a heat transfer flow problem is developed assuming fully developed laminar velocity distribution in both inner and annular channels with ignoring axial conduction. The theoretical predictions show that the outlet temperature and average Nusselt number decrease with decreasing power-law index. A qualitative agreement is achieved between the analytical solutions and the experimental results. Comparisons made between the results from the double-pass concentric circular heat exchanger and those of a single pass (open conduit) were presented graphically. Considerable improvement in heat transfer is obtainable by employing double-pass devices instead of using single-pass ones. The effect of power-law index on the heat-transfer efficiency enhancement of the double-pass device has also been discussed.
    Relation: JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 48(7), p.533-537
    DOI: 10.1252/jcej.14we398
    Appears in Collections:[Graduate Institute & Department of Chemical and Materials Engineering] Journal Article

    Files in This Item:

    File Description SizeFormat
    index.html0KbHTML200View/Open

    All items in 機構典藏 are protected by copyright, with all rights reserved.

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - Feedback