How to choose electric floor heating system?

Electric floor heating is now divided into four categories: electric heating film, heating cable, carbon crystal floor heating and carbon fiber. The edge of the electric heating film is made of polyester film. When working, the electrothermal film is used as the heating element, which sends heat into the space in the form of radiation, so that the human body and objects can be warmed first, and its comprehensive effect is better than the traditional convection heating method. The low-temperature radiation electrothermal film system consists of power supply, temperature controller, connector, insulation layer, electrothermal film and decorative layer. The power supply is connected with the electrothermal film through wires to convert electric energy into heat energy. Because the electrothermal film is a pure resistance circuit, its conversion efficiency is high, except for a small part of the loss (2%), most (98%) is converted into heat energy. Electric heating film can't be directly used for floor radiant heating, so it is necessary to use patented PVC vacuum envelope for floor heating to ensure the use effect and service life. You can know the related information of electric heating film by logging in Baidu and checking. Low-temperature radiation heating system with heating cable takes electric power as energy source and heating cable as heating body, which converts 100% electric energy into heat energy, and sends the heat into the room in the form of low-temperature radiation through the floor (or wall or top surface) of the heating room. Among the three modes of heat transfer: conduction, convection and radiation, people feel the radiation heat best. Therefore, the heating cable low-temperature radiation heating system is recognized as one of the most ideal and advanced heating methods in the field of HVAC engineering in the world. The system has the advantages of long life, no pollution, energy saving, easy construction, room control, low investment cost, convenient management, hygiene and comfort, and has become another new way to build the heating market. Wanjia heating cable is the biggest brand product of electric floor heating in China. You can check it at. The heating principle of carbon crystal floor heating is to lay and install a plane carbon crystal plate under the floor decoration material. Under the action of electric field, carbon crystal molecules do Brownian motion and generate heat by friction, which makes the surface temperature of carbon crystal plate rise, and continuously transfers heat to the surface of floor or floor tile through ground materials close to carbon crystal plate. At the same time, the carbon crystal plate will generate a large number of upward far-infrared waves, heating indoor objects. The reason why carbon crystal plate can heat objects quickly is that its 100% electric energy input is effectively converted into more than 60% conductive heat energy and more than 30% infrared radiation energy. This double heating principle makes the heated object: the first one heats up faster and the second one absorbs more heat energy. Carbon crystal floor heating works the same as graphite. Why does graphite conduct electricity? Because graphite is layered. Each layer has free electrons other than carbon atoms moving at high speed, and the current is generated by the directional flow of free electrons (of course, the direction of electron movement is physically defined as the opposite direction of current); In addition, carbon itself can actually be considered as a resistor. Therefore, according to physical knowledge, the current flowing through the resistor will inevitably generate heat. So, I have a fever. The so-called carbon crystal floor heating uses this heating principle. There are many people who do carbon crystal floor heating now, but the industry evaluation is not very good. Because the effective flow of current between carbon particles depends on the close connection between carbon particles and adjacent carbon particles after the completion of carbon crystal floor heating. The problem is that it is difficult to ensure the close connection between carbon particles after a long time (because people walk on it in use and bear different gravity changes everywhere). Then once the carbon particles can't be closely connected, the current can't flow, and the resistance can't heat up, the carbon crystal floor heating will "fail". Carbon fiber is a new material with excellent mechanical properties, and its specific gravity is less than that of steel 1/4. The tensile strength of carbon fiber resin composites is generally above 3500Mpa, which is 7~9 times that of steel, and the tensile elastic modulus is 230~430Gpa, which is also higher than steel. Therefore, the specific strength of CFRP, that is, the ratio of material strength to density, can reach more than 2000Mpa/(g/cm3), while the specific strength of A3 steel is only about 59Mpa/(g/cm3), and its specific modulus is also higher than that of steel. The higher the specific strength of the material, the smaller the weight of the component, the higher the specific modulus and the greater the stiffness of the component. In this sense, it indicates the broad application prospect of carbon fiber in engineering.