Simulation Analysis And Durability Study On Electrical Heating Performance For Cement-based Flooring Heating System Utilizing Carbon Fiber Tape

With the development of technology and science, various in-door electrical heating systems were created and used. However, the existing electrical heating systems has already not been satisfied in people's life for its application convenience, environmental friendly issues and cost performance with the development of living standard. Thus it is necessary to study the innovative electrical heating system by using new materials and concept. The article firstly concludes the performance characteristics of different existing in-door electrical heating systems and research status. On the base of summary, we proposed an innovative in-door electrical heating system that uses commercially available carbon fiber tape (CFT). The CFT electrical heating system is based on the principle that temperature increases with CFT connected to power supply. In addition, marketization, relatively cheap price, performance stability, good durability and construction convenience of carbon fiber makes it can be used as heat carrier material.In the article, theory analysis and optimization of the electrical heating system have been conducted by FEM software, such as ANSYS, and we summarized the factors affecting the effect of warming and improved the heating effect of CFT electrical heating system. Finally, durability of the system was studied later.1. In the article, a theoretical analysis of the model was made by using ANSYS, and the comparison of theoretical results and experimental data was made as well, including comparison of theoretical value and experimental results of all temperature sensors, in addition, we introduce analysis for material parameters sensitivity of cement mortar and optimization design of the entire model in detail.2. In the FEM analysis, we analyze the temperature cycle test through the method of load step file, study the effect of warming at different initial temperatures, and investigate the influence of difference between boundary conditions and the actual environment to the temperature rise.3. Using ANSYS software to design some parameters, such as heating power, floor tiles, and the different buried depth of CFT, then we study their influence to the effect of warming. Comparing and analyzing the surface temperature and interface temperature of the model with various parameters, summarizing the characteristics of temperature rising in different environments.4. Studying the durability of CFT electrical heating system, and testing the mechanical properties of carbon fiber and CFT. In addition, we design different heating time to explore the resistance change of CFT, and test the flexural mechanical performance of the specimen, studying the effects of CFT resistance by deflection.5. The study in the article shows that the FEM software ANSYS can simulate the temperature rise of the test well, and the theoretical values fitted well with experimental data; Research on optimization design, analysis of parameters sensitivity, the simulation of temperature control and multi parameters provide guidance for the actual project, and save a large number of test time and materials, improving the efficiency of the work. The test also shows that the CFT electrical heating system is a new type of durable, green, environmental protection and electrical resistance of the system is stable, which can satisfy the needs of modern home life.