Experimental and theoretical investigation of regenerative total heat exchanger with periodic flow for air-conditioning systems

被引：6

作者：

Chang, Chih-Chung ^{[1
]}

Chen, Sih-Li ^{[2
]}

Lin, Tzu-Yuan ^{[2
]}

Chiang, Yuan-Ching ^{[3
]}

机构：

[1] China Steel Corp, Kaohsiung, Taiwan

[2] Natl Taiwan Univ, Dept Mech Engn, Taipei 10617, Taiwan

[3] Chinese Culture Univ, Dept Mech Engn, Taipei, Taiwan

来源：

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID | 2017年 / 81卷

关键词：

Periodic total heat exchanger; Heat effectiveness; Heat and mass transport; ENERGY EFFICIENCY; PERFORMANCE; VENTILATION; ENVIRONMENT; VALIDATION; WHEEL;

D O I：

10.1016/j.ijrefrig.2017.05.015

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

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.

引用

页码：123 / 133

页数：11

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