文化大學機構典藏 CCUR:Item 987654321/39363
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    Please use this identifier to cite or link to this item: https://irlib.pccu.edu.tw/handle/987654321/39363


    Title: Experimental and theoretical investigation of regenerative total heat exchanger with periodic flow for air-conditioning systems
    Authors: Chang, CC (Chang, Chih-Chung)
    Chen, SL (Chen, Sih-Li)
    Lin, TY (Lin, Tzu-Yuan)
    Chiang, YC (Chiang, Yuan-Ching)
    Contributors: 機械系
    Keywords: Periodic total heat exchanger
    Heat effectiveness
    Heat and mass transport
    Date: 2017-09
    Issue Date: 2018-01-29 10:29:41 (UTC+8)
    Abstract: This study experimentally investigates the theoretical performance of the periodic total heat exchanger. The total heat exchanger has a double flow-circuit heat exchange function for periodic positive-and reverse-directional pumping. The operating period parameters are 2 minutes, 3 minutes, 4 minutes, 6 minutes, and 8 minutes. Under the temperature and humidity ratio differences, 10 degrees C and 4 g kg(-1), the operating period of 3 min results in optimal performance of sensible heat effectiveness, latent heat effectiveness, and total heat effectiveness. This study also proposes the lumped system, with dimensionless analysis assumption applied to the whole, and solves it in a one-dimensional model involving the heat and mass transport equations. The dimensionless operating period dominates latent heat effectiveness, while the latent heat effectiveness decreases when the dimensionless operating period increases. (C) 2017 Elsevier Ltd and IIR. All rights reserved.
    Relation: INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID 卷: 81 頁碼: 123-133
    Appears in Collections:[Department of Mechanical Engineering ] journal articles

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