Industry News
Exploring the working principle of energy-saving heaters
- ReleaseTime: 2024-12-27
1. Principle of heat pump technology (applicable to some heating equipment such as air conditioners)
-A heat pump heater is like a 'porter' of heat. It mainly consists of components such as compressor, condenser, expansion valve, and evaporator. During operation, it uses refrigerant to absorb heat from the external environment (such as outdoor air) in the evaporator, causing the refrigerant to evaporate into a gaseous state. Then, the gaseous refrigerant is compressed by the compressor, and its temperature and pressure increase before entering the condenser.
-In the condenser, the high-temperature and high-pressure refrigerant gas releases heat into the room, causing the indoor temperature to rise while the refrigerant liquefies itself. The liquefied refrigerant passes through the expansion valve, reducing its pressure and temperature, and then enters the evaporator for the next round of heat absorption. In this way, by consuming a small amount of electrical energy to drive the compressor, heat transfer from a low-temperature environment to a high-temperature environment is achieved. The consumed electrical energy is mainly used to transport heat, rather than directly generating heat, making it more energy-efficient than traditional electric heaters.
-For example, a high-performance air source heat pump can transport 3-4 kWh of heat for every 1 kWh of electricity consumed, resulting in an energy efficiency ratio (COP) of around 3-4.
2. Principle of Far Infrared Heating (Far Infrared Heater)
-Far infrared heaters emit far-infrared radiation by heating internal heating elements such as carbon fiber heating tubes. Far infrared is an invisible light with a wavelength between 4-1000 micrometers. When far-infrared radiation is irradiated onto objects and human bodies, it can cause vibrations and rotations of their molecules.
-After water molecules, organic molecules, and other substances in the human body and objects absorb far-infrared radiation, their internal energy increases and the temperature rises. When heating in this way, instead of heating the air first, it directly heats the object and the human body, reducing the heat loss during air convection. Moreover, because it directly acts on objects and the human body, it can also make people feel warm at lower power, thus achieving energy-saving effects.
3. Principle of Graphene Heating (Graphene Heater)
-Graphene is a two-dimensional carbon nanomaterial composed of carbon atoms in sp ² hybridized orbitals, forming a hexagonal honeycomb lattice. It has an extremely high thermal conductivity, even higher than that of copper. In graphene heaters, when current passes through the graphene heating film, due to the excellent electrical and thermal properties of graphene, it can quickly convert electrical energy into thermal energy.
-Moreover, the heating of graphene heating film is relatively uniform, which can effectively dissipate heat. It can quickly heat up, reducing the energy consumption during the preheating stage of the heater. At the same time, its efficient heating performance can achieve better heating effect at relatively low power, thereby saving electricity. For example, some graphene heaters can reduce power by about 20-30% compared to traditional electric heaters under the same heating area.
4. Intelligent control energy-saving principle (intelligent heater)
-Smart heaters are typically equipped with temperature sensors and intelligent control systems. The temperature sensor can monitor the indoor temperature in real time and provide feedback to the control system. When the indoor temperature reaches the user set temperature, the control system will automatically reduce the power of the heater or pause its operation.
-For example, when the user sets the temperature of the smart heater to 20 ℃, when the indoor temperature rises to 20 ℃, the power of the heater will automatically decrease, possibly from 2000 watts to 1000 watts or stop working directly. After the indoor temperature drops to a certain extent, the heating will be restarted to avoid energy waste caused by continuous high-power operation. At the same time, some smart heaters can also be remotely controlled through mobile apps and other methods. Users can turn on or off the heater in advance before returning home according to their actual needs, further optimizing the usage time of the heater and achieving energy-saving goals.
