Performance of temperature and humidity independent control air-conditioning system in an office building
Performance of temperature and humidity independent control air-conditioning system in an office building
复制标题
某办公楼温湿度独立控制空调系统性能
DOI：
10.1016/j.enbuild.2011.03.041
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发表时间：
2011-08-01
影响因子：
6.7
通讯作者：
Jiang, Yi
中科院分区：
文献类型：
--
作者：
Zhao, Kang;Liu, Xiao-Hua;Jiang, Yi
温湿度独立控制(THIC)系统分别控制室内温度和湿度，在系统整体性能和低品位能源利用率方面具有显著的优势，是现有传统暖通空调系统的一种有吸引力的替代方案。为了验证THIC系统的有效性，在深圳的一栋写字楼中国进行了试点。在该系统中，利用热泵驱动的液体除湿新风处理机组来消除整个建筑的新风供应的全部潜在负荷，并将来自冷水机组的17.5℃的冷水抽出并分配到干燥的风机盘管和散热板中，以控制室内温度。本文介绍了该系统的现场测试结果，结果表明，该系统即使在炎热潮湿的天气下也能提供舒适的室内环境。整个THIC系统的COP可以达到4.0。根据2009年记录的能耗数据，测试办公楼THIC系统的能耗为32.2kWh/(m(2)yr)，与常规空调系统(约49kWh/(m(2)yr)相比，显示出巨大的节能潜力。(C)2011爱思唯尔B.V.保留所有权利。
The temperature and humidity independent control (THIC) system, which controls indoor temperature and moisture separately, may be an attractive alternative to existing conventional HVAC systems for its prominent improvement on the overall system performance and utilization of low grade energy resources. In order to verify the effectiveness of THIC system, a pilot project has been implemented in an office building in Shenzhen, China. In the system, liquid desiccant fresh air handling units driven by heat pumps are utilized to remove the entire latent load of outdoor air supplied for the whole building, and chilled water at the temperature of 17.5 degrees C from chiller is pumped and distributed into dry fan coil units and radiant panels to control indoor temperature. This paper presents the results of field test of the system, which shows that the system can provide a comfortable indoor environment even in very hot and humid weather. The COP of the entire THIC system can reach 4.0. According to the energy usage data recorded from the year 2009, the energy consumption of the THIC system in the tested office building was 32.2 kWh/(m(2) yr), which demonstrates magnificent energy-saving potential compared with the conventional air-conditioning system (around 49 kWh/(m(2) yr)). (C) 2011 Elsevier B.V. All rights reserved.