Efficiency of Induction Heating

A Comparison of Efficiency and Power Consumption for Induction Heating versus other Heating Methods

Hitfar are exported all over the world and different industries with quality first. Our belief is to provide our customers with more and better high value-added products. Let's create a better future together.

UltraFlex Power Technologies often has customers who ask about the potential power savings for using Induction over other common heating methods. The following provides a guide for potential power savings that customers may see.
Heating by Induction has minimal wasted heat, with direct transfer of energy to the part being heated. This high efficiency results in significant power savings. Induction heating proves to be a highly efficient method for industrial heating applications. 

1.) A study conducted by Lawrence Berkeley National Laboratory for the Department or Energy, found induction cooktops to transfer 84% of the power to the load vs. only 71% for electric coils and 40% for gas.

Type of Heating ElementEfficiency FactorElectric &#; Induction84.00%Electric &#; Radiant*71.00%Gas40.00%

Efficiency Chart Source: US Department of Energy ()

*Electric radiant efficiency varies depending on size of heating element relative to part size. If the element is larger than the part to get sufficient power, the efficiency will be much less.

2.) UltraFlex&#;s testing and research is comparable to these results. Below is our more conservative estimate of the efficiency of power delivered to the desired load vs. heat transferred to other parts and environment for a variety of heating methods.

Examples Stated Power vs. Delivered PowerTypeInput Power (kW)EfficiencyDelivered Power (kW)Induction*2.890%2.52Electric &#; Radiant2.055%1.1Gas3.550%1.75

* Into a magnetic steel load below curie.

3.) If we &#;normalize&#; the above data, to show delivered power of 1.0 kW for all methods, we see the difference in required input power. We can then easily calculate the power savings of other Induction vs Electric and Gas.

Required Input Power for 1.0 kW Delivered Power and Associated Power SavingsTypeInput
Power (kW)EfficiencyDelivered Power
(kW)Power Savings of Induction vs AltInduction1.%1.0&#;Electric &#; Radiant1.%1.039%Gas2.%1.044%

4.) For batch heating processes, the efficiency can be even greater since you only spend energy with Induction Heating when you need to heat. There is no wasted energy with Induction Heating versus keeping furnaces and ovens running or delays in pre-heating ovens.

Want more information on induction water heater? Feel free to contact us.

References:
Berkeley, Lawrence. &#;Technical support document for residential cooking products, volume 2: Potential impact of alternative efficiency, Levels for residential cooking products.&#; n.d.

How does it work?

Induction heating is the process of heating a metal (or any material that conducts electricity) by inducing an electric current through it. The primary coil is connected to the AC power source in induction geysers. The alternating current creates a magnetic field that induces a voltage in a different coil, which is also called the secondary coil. The secondary coil is usually submerged in the tank that contains water. When the current flows through the secondary coil, heat is released into the water, therefore raising its temperature. There is no direct AC near the water which makes these geysers much safer than the traditional ones.

Area of usage

Advantages of induction water heating

There are multiple advantages of heating water through the induction process. Some of the advantages are listed below:

• Is claimed to offer better efficiency
• The temperature can be controlled
• Helps saves energy
• Heeating is faster
• Is safer technology vs traditional geysers
• Come in relatively more designs and options, and take less space

Brands that offer induction geysers

There are a number of brands that offer induction geysers in our country which are available both online and offline in India. Some brands that offer these products through the Amazon e-commerce site are -- Crompton, AO Smith, Lifelong, Venus, Racold, Bajaj, Anchor by Panasonic Astra and others. The prices of these appliances range from Rs Rs 6,000 - Rs 15,000 (depending on features) and usually come with a storage capacity that varies from 3-litres to 6-litres. Havells comes with Magnatron water heater. They claim to offer India's first water heater with 'Element Free' induction heat transfer technology.

Induction geysers are apparently a new-gen technology that uses the magnetic induction process to heat water. This induction process helps in heating a larger surface area of water in the tank, compared to a traditional geyser. This technology also allows the water to heat more quickly that eventually reduces the overall electricity usage. Induction geysers can reduce the electricity consumption required to heat water by 33%.Although these geysers don&#;t reduce the electricity cost like the ones that run on solar energy , they do offer more economical and energy-efficient substitute. Induction geysers are commonly divided into two parts, the generator unit and the storage tank.Induction heating is the process of heating a metal (or any material that conducts electricity) by inducing an electric current through it. The primary coil is connected to the AC power source in induction geysers. The alternating current creates a magnetic field that induces a voltage in a different coil, which is also called the secondary coil. The secondary coil is usually submerged in the tank that contains water. When the current flows through the secondary coil, heat is released into the water, therefore raising its temperature. There is no direct AC near the water which makes these geysers much safer than the traditional ones.The smaller induction units are best suited for kitchen and single shower usage, while the bigger ones offer more hot water for the consumption needs of larger families. Induction geysers are also well-suited for holiday homes as they can be turned on during arrival, to get hot water in very little time for its rapid heating mechanism.There are multiple advantages of heating water through the induction process. Some of the advantages are listed below:There are a number of brands that offer induction geysers in our country which are available both online and offline in India. Some brands that offer these products through the Amazon e-commerce site are -- Crompton, AO Smith, Lifelong, Venus, Racold, Bajaj, Anchor by Panasonic Astra and others. The prices of these appliances range from Rs Rs 6,000 - Rs 15,000 (depending on features) and usually come with a storage capacity that varies from 3-litres to 6-litres. Havells comes with Magnatron water heater. They claim to offer India's first water heater with 'Element Free' induction heat transfer technology.

For more Full Bridge Electromagnetic Induction Heaterinformation, please contact us. We will provide professional answers.