淡江大學機構典藏:Item 987654321/100089
English  |  正體中文  |  简体中文  |  Items with full text/Total items : 62830/95882 (66%)
Visitors : 4156350      Online Users : 716
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/987654321/100089


    Title: Upward-type flat-plate solar air heaters attached with fins and operated by an internal recycling for improved performance
    Authors: Yeh, Ho-Ming
    Contributors: 淡江大學化學工程與材料工程學系
    Keywords: Solar air heater;Upward type;Flat-plate;Collector efficiency;Internal recycle;Attached fins
    Date: 2012-03-11
    Issue Date: 2015-01-28 11:07:06 (UTC+8)
    Publisher: Amsterdam: Elsevier BV
    Abstract: The effect of internal recycle on the collector efficiency in upward-type flat-plate solar air heaters attached with fins has been investigated theoretically. The equations for predicting the outlet air temperature and the collector efficiency were derived from the energy balances on the absorbing plate and flow air. Considerable improvement in collector efficiency is obtainable if collector is attached with fins to extend the heat-transfer area, and if the operation is carried out with an internal recycle to increase the fluid velocity, leading to improved heat transfer coefficient. The enhancement in collector efficiency increases with increasing reflux ratio, especially for operating at lower air flow rate with higher inlet air temperature. It is found that more than 100% of improvement in collector efficiency is obtained by recycling operation. Furthermore, the performance in the device operated with internal recycle overcomes that in the same-size device operated with external recycle.
    Relation: Journal of the Taiwan Institute of Chemical Engineers 43(2), pp.235-240
    DOI: 10.1016/j.jtice.2011.10.008
    Appears in Collections:[Graduate Institute & Department of Chemical and Materials Engineering] Journal Article

    Files in This Item:

    File SizeFormat
    index.html0KbHTML248View/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