Karpiesiuk Jacek, Chyży Tadeusz
Faculty of Civil Engineering and Environmental Sciences, Bialystok University of Technology, Wiejska 45A, 15-351 Bialystok, Poland.
Materials (Basel). 2021 Sep 30;14(19):5727. doi: 10.3390/ma14195727.
The lightweight floor system (LFS) with a heating coil is one of many types of radiant heating systems. It differs from most of the others, as it has a much higher thermal efficiency at low flow temperature. To verify whether adhesive mortars can safely connect the ceramic floor with the insulating substrate, the deformations and stresses values of all light system layers under thermal action should be checked and compared to their maximum strengths. For this purpose, an LFS test field was conducted using the strain gauges and digital measurement techniques, and floor displacements and deformations were determined. The results obtained from the tests were confirmed by finite element method calculations. It was also found that the stress of each floor component was much lower than their strength. This proves that the LFS with a heating coil, without metal lamellas, meets the safety regulation for use. The results of the analysis can be useful in the design of heated/cooled LFSs.
带有加热盘管的轻质地板系统（LFS）是众多辐射供暖系统类型之一。它与其他大多数系统不同，因为在低水流温度下具有更高的热效率。为了验证粘结砂浆能否将陶瓷地板与绝缘基板安全连接，应检查热作用下所有轻质系统层的变形和应力值，并与它们的最大强度进行比较。为此，使用应变片和数字测量技术建立了一个LFS测试场，并测定了地板位移和变形。试验结果通过有限元法计算得到了证实。还发现每个地板组件的应力远低于其强度。这证明了不带金属薄板的带加热盘管的LFS符合使用安全规定。分析结果可用于加热/冷却LFS的设计。
