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首页> 外文期刊>Energy and Buildings >Validation of a FEM-program (frequency-domain) and a simplified RC-model (time-domain) for thermally activated building component systems (TABS) using measurement data
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Validation of a FEM-program (frequency-domain) and a simplified RC-model (time-domain) for thermally activated building component systems (TABS) using measurement data

机译：使用测量数据验证热激活建筑构件系统（TABS）的FEM程序（频域）和简化的RC模型（时域）

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摘要

In an office building equipped with a thermally activated building component system (TABS) detailed in situ measurements have been performed. The measurements presented in this paper have been concentrated on the concrete core conditioning (CCC) system, which is used for heating and cooling the building. Plastic pipes with circulating water have been placed in the concrete slab. One coil of the thermally activated concrete slab has been measured in detail using 80 measurement points. The measurements include temperature measurements at different heights of the concrete slabs as well as in the suspended floor and in both adjacent rooms. Furthermore the supply and return water temperature, the volume flow for the coil as well as the heat flow at the surface of the concrete slab have been measured. The measurements have been analyzed in the frequency-domain with help of a Fourier-transform. The temperature measurements and the volume flow have been utilized to validate a FEM-program working in the frequency-domain and a simplified RC star network placed in the time-domain simulation environment TRNSYS. The simplified RC-network has been previously validated with help of the FEM-program working in frequency-domain. For the validation of the FEM-program the measured time series have been transformed into Fourier-series and then used as input to the FEM-program performing the calculation in frequency-domain.
机译：在配备有热激活建筑构件系统（TABS）的办公大楼中，已进行了详细的现场测量。本文介绍的测量方法主要集中在混凝土核心调节（CCC）系统上，该系统用于加热和冷却建筑物。将装有循环水的塑料管放置在混凝土板中。使用80个测量点详细测量了一个线圈的热活化混凝土板。测量包括在混凝土板的不同高度以及悬浮地板和两个相邻房间中的温度测量。此外，还测量了供水和回水温度，盘管的体积流量以及混凝土板表面的热量流量。借助于傅立叶变换在频域中对测量进行了分析。温度测量和体积流量已用于验证在频域中工作的FEM程序以及置于时域仿真环境TRNSYS中的简化RC星形网络。简化的RC网络先前已通过在频域中运行的FEM程序进行了验证。为了验证FEM程序，已测量的时间序列已转换为Fourier级数，然后用作FEM程序的输入，以在频域中执行计算。

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