Induction heating uses electricity to create heat from magnetic energy. It can be used in the home for many things, including cooking, cleaning, and more.
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Induction heating is the process of generating heat by electromagnetic induction. It uses electricity and magnetism to create heat through a coil.
This form of heating is used in various industrial applications, but it's also beneficial for household use.
In addition to its widespread usage in the kitchens of both homes and restaurants, induction heating is also used in a wide variety of industrial and scientific contexts, including melting, heat treatment, preheating for welding, soldering, brazing, curing, sealing, and shrink fitting.
The following are five common home induction heating uses:
Induction cooking has been around for a while. It is a type of cooking that uses electromagnetic energy to heat an empty pot or pan with no contact from the stovetop. To illustrate how this works, let's say you want to boil water on your stovetop.
You would place your pot or pan on top of the burner, which sits over a flame that heats the bottom of the vessel until the boiling point is reached. With induction cooking, you place your pot or pan on top of a circular surface containing coils.
If you don't have an induction stovetop, that's not a problem. There are portable versions available that can be used anywhere there's an outlet nearby.
Induction heaters are a cost-effective and energy-efficient way to heat your home. They're also surprisingly versatile.
You can warm your bathroom faster using induction heating. Instead of using an electric heater, you can put an induction heater under the sink for instant warmth.
If your pet has been shivering all day, it might be because they're cold. You can purchase a small induction heater and set it underneath their bed to keep them warm while they sleep.
An induction dishwasher is a green appliance that does not use water, detergent, or power. The dishes are cleaned with a heated surface that kills all bacteria and germs.
This is perfect for people who have sensitive skin or allergies. Plus, it's easier on the environment because no water is used!
An induction clothes dryer uses a third of the energy of a traditional electric clothes dryer. This is because it heats using electromagnetic waves instead of direct heat, meaning there is no need for an external heat source like gas or electricity.
The absence of these two energy sources also means the clothes dryer will not release emissions, making this an excellent option for green living.
Induction heating may be a good choice for those looking to improve their health while saving money and improving efficiency.
Induction lighting is a great way to make your home safer and more energy efficient. It also adds style and sophistication to any room.
This energy-efficient technology heats the metal coils built into the light fixtures, which creates the light. This design also helps keep your home cooler in summer and warmer in winter.
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Induction heating is a precise, repeatable, non-contact method for heating electrically-conductive materials like brass, aluminum, copper or steel or semiconducting materials like silicon carbide.
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Solving Your Process Heating Problems
An induction heating system includes a special power supply which converts line power to a high frequency alternating current. This energy is delivered over a cable assembly to a workhead - or tank circuit - which creates an electromagnetic field within the attached coil. A work piece is placed in the coil, inducing a current, friction and heat in it.
Induction heating is used very effectively in many processes like brazing, soldering and shrink fitting, from something as small as a hypodermic needle to a large wheel on a military tank. Many companies in the automotive industry, medical device industry and aeronautics make efficient use of induction heating in their processes.
More about how it works:
If your work piece material is magnetic, such as carbon steel, it will be heated easily by induction's two heating methods, eddy current and hysteretic heating. Hysteretic heating is very efficient up to the Curie temperature (for steel 600°C (°F)) when the magnetic permeability reduces to 1 and the eddy current is left to do the heating.
The relationship of the current flow in the work piece and the distance between the work piece and the induction coil is key; the closer the coil, the more current in the work piece.
But the distance between the coil and the work piece must first be optimized for the heating required and for practical work piece handling. Many factors in the induction heating system can be adjusted to match to the coil and optimize the coupling efficiency.
Heat losses and uneven, inconsistent application of heat result in increased scrap and diminished product quality, driving up per-unit costs and consuming profits. Best manufacturing economies are seen when the application of energy is controlled.
To bring a batch oven up to temperature and to hold the entire chamber at the required temperature for the process time demands much more energy than is required to process the parts. Flame-driven processes are inherently inefficient, losing heat to the surroundings. Electrical resistance heating can also result in the wasteful heating of surrounding materials. Applying only the energy needed to process your parts is ideal.
Induction selectively focuses energy only on the area of the part that you want to heat. Each part in a process enjoys the same efficient application of energy. Since the energy is transferred directly from the coil to a part, there is no intervening media like flame or air to skew the process.
The precision and repeatability of induction heating help to reduce process scrap rate and to improve throughput. The selective application of heat to the targeted area of a part enables very tight control of the heating process, also cutting the heating time and limiting energy requirements.
Read: Induction Heating is a Green Technology
Delivering the highest quality parts for the least expense in the least time is accomplished with an efficient process, in which the input elements of materials and energy are tightly and precisely controlled. Induction heating's targeted application of heat to the part or an area of the part, as well as repeatability, provides the most uniform results for the least cost. Repeatability and throughput are two things that can be greatly improved with induction compared to resistance or flame heating.
Induction heating delivers savings primarily from significant reductions in process scrap rates, improved throughput and from the thrifty use of energy. There is no need for process ramp-up; heat is applied and stopped instantly. In comparison, batch heating in an oven requires an investment of time and energy that serves only the process, not the product. Throughput and efficiency are increased by induction heating with the careful application of energy (heat) in amounts no more than required by the product.
Any heating process carries a risk of operator contact with the heated materials. A technology like induction heating that limits the extent of operator-contacted surfaces does reduce the overall risk. If heating can be limited to only the part and further limited to a zone of the part, safety is improved even more.
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