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Microwave generator manufacturers tell you the difference between microwave heating and traditional heating

Industry news

2022-09-27 01:17:14


When it comes to microwaves, people's mind is the microwave oven, after all, this has been widely known, since the emergence of the microwave oven, we can use the microwave oven to quickly heat the food they want, no longer need to place the food on the stove fire heating, so that everyone's life convenient a lot, it can be said that the microwave oven is a must-have kitchen appliances.

So, what is the difference between microwave heating and traditional heating? As a professional microwave generator manufacturer, today, Wattsine Microwave Source brings you to understand the difference between the two!

Microwave heating is different from traditional heating, traditional heating is through radiation, convection, conduction three ways to heat from the outside to the inside, while microwave heating material is in the electromagnetic field by dielectric loss caused by the body heating, which has the following characteristics:

(1) heating uniformity: microwave heating, microwave into the medium inside, directly with the medium, heating depends on the dielectric loss of microwave energy, there is volume heating, so you can generate heat in different depths of the material being heated, uniform heating, and small temperature gradient, which is conducive to the curing reaction.

(2) selective heating: as the ability of the material to absorb microwave energy depends on its own dielectric properties, different media have different microwave absorption capacity, and for good conductors, microwaves are almost always reflected, so good conductors are difficult to be microwave heating. For low conductivity, polarization loss of microwave insulator media, microwave is basically full penetration, and generally not easy to heat. For those with moderate conductivity and polarization loss of the medium, it is easy to absorb microwaves and be heated, so microwaves can selectively heat the various components of the mixture. In some gas-solid phase reactions, there is a gas-solid interface reaction and gas-phase reaction, gas-phase reaction is likely to reduce the selectivity, the use of microwave selective heating characteristics can make the gas-phase temperature is not too high, thereby improving the selectivity of the reaction.

(3) unique temperature control: traditional heating methods, such as steam heating, electric heating, infrared heating, etc., to reach a certain temperature, it takes a certain amount of time, in the event of failure or stop heating, the temperature drop and longer. While microwave heating is generated or disappeared with the microwave to start or terminate, microwave heating without hysteresis effect, when the microwave source is closed, the microwave energy transfer to the heated material in the behavior will be immediately terminated, we use this feature can be carried out on the temperature control requirements of the response.

(4) microwave heating also has a high thermal effect, no pollution, simple and safe operation, and other characteristics.


The emergence of microwave heating technology, the development of the food industry has also brought unlimited possibilities, at present, microwave technology can play an active role in food sterilization, preservation, drying, ripening, baking, puffing, modification, accelerating chemical reactions, etc., especially in the role of food sterilization and preservation is more attention. The application of microwave technology to treat food has the advantages of fast, efficient, energy-saving, uniform heating, low temperature, no pollution, easy to automate the operation, and can effectively preserve the colour, flavour and nutrients in food.

These are the differences between microwave heating and traditional heating as collated by Wattsine Microwave Source, I hope they can be helpful.

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