Study on indoor thermal environment of office space controlled by cooling panel system using field measurement and the numerical simulation
Study on indoor thermal environment of office space controlled by cooling panel system using field measurement and the numerical simulation
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DOI：
10.1016/j.buildenv.2004.04.010
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发表时间：
2005-03
影响因子：
7.4
通讯作者：
Taeyeon Kim;S. Kato;S. Murakami;Jinah Rho
中科院分区：
文献类型：
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作者：
Taeyeon Kim;S. Kato;S. Murakami;Jinah Rho
本研究的目的是通过现场测量和对流辐射耦合模拟（CFD），分析安装在有冷凝的垂直平面上的冷却板系统（以下简称冷却板系统）的性能。与全空气冷却系统不同，冷却板系统可以通过对流和辐射来消除冷却负荷。由于本研究分析的冷却板表面温度可以控制在露点以下，因此本系统有望实现节能除湿。在本研究的第一步，通过现场测量和CFD分析了采用冷却板空调的办公空间的室内热环境。通过对两种计算结果的比较，验证了CFD计算方法对有冷却板的室内空间的期望精度，并从实际角度对CFD方法进行了验证。接下来，利用CFD对三种HVAC系统（冷却板系统、全风冷系统和由冷却板与自然通风组成的混合风冷系统）冷却的模型办公空间的热环境进行分析。在办公室内安装人体模型，分析人体模型的传热特性。本研究只分析感热。当各类型暖通空调系统各显冷负荷相同时，冷板系统的工作温度低于全风冷系统的工作温度。总之，冷却板系统是非常节能的。
The purpose of this study was to analyze the performance of a cooling panel system installed in the vertical plane with condensation (hereinafter a cooling panel system) using field measurement and coupled simulation of convection and radiation (CFD). Unlike an all-air cooling system, the cooling panel system could remove the cooling load by convection and radiation. Since the surface temperature of the cooling panel analyzed in this study can be controlled under the dew point, this system is expected to be energy-saving and dehumidifying. In the first step of this study, the indoor thermal environment of the office space, which is air-conditioned by a cooling panel system, was analyzed by field measurement and CFD. By comparing both results, the expected precision of CFD for an indoor space with a cooling panel was examined and the CFD method verified from a practical point of view. In the next step, the thermal environment of the model office space, which is cooled by three types of HVAC system (cooling panel system, all-air cooling system, and hybrid air cooling system composed of cooling panel and natural ventilation), was analyzed using CFD. Installing a human model in the office, the characteristics of heat transportation from the human model were also analyzed. The analysis deals with only sensible heat in this study. The operative temperature in the cooling panel system was lower than that in the all-air cooling system when each of the sensible cooling loads of all types of HVAC system was the same. In conclusion, the cooling panel system was found to be very energy-efficient.