Steady-State Thermal Performance of Radiant Wall Embedded with Capillary-Tubes

被引：1
|
作者：
Qin S. [1 ]
Wang Y. [1 ,2 ]
Li Y. [3 ]
Gao S. [1 ,4 ]
Zhao M. [1 ,5 ]
Lu Z. [1 ]
Kong Q. [1 ]
Jin L. [1 ]
机构：
[1] School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an
[2] Baidu Era Network Technology Co. Ltd., Beijing
[3] School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan
[4] China Academy of Engineering Physics, Jiangyou, 621907, Sichuan
[5] China Northwest Architecture Design and Research Institute Co. Ltd., Xi'an
来源：
Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University | 2018年 / 52卷 / 05期
关键词：
Capillary-tube embedded wall; exchange distribution; Heat flux; Radiant air conditioning system; Scale model of heat;
D O I：
10.7652/xjtuxb201805020
中图分类号：
学科分类号：
摘要：
To explore the performance of the wall embedded with capillary-tubes, a scale model of heat distribution of the capillary wall is established, which delivers the ratio of heat exchange from capillary layer to both indoor and outdoor sides according to the simplified transient RC (resistance and capacity) model. The experimental data including the indoor and outdoor air temperatures, the temperature of the inner surface of the capillary wall, the temperature of the capillary layer and the heat fluxes from capillary layer to indoor and outdoor sides are collected to analyze the characteristics of the capillary wall and the heat exchange crossing indoor and outdoor sides subject to the winter conditions. The reasonability of the present scale model is verified, and the one-dimensional heat exchange process of the capillary wall is then discussed. Experimental results show that the capillary radiant air-conditioning system is endowed with good stability, and the fluctuation of the indoor temperature is relatively small. With the increase in the running time of the system, the calculated values of the model are more consistent with the measured results. The proposed model is capable to handily evaluate the performance of the capillary wall in actual applications and to provide a theoretical basis for the further research on indoor load calculation of the radiant air conditioning system. © 2018, Editorial Department of Journal of Southwest Jiaotong University. All right reserved.
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页码：142 / 148
页数：6
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