Energy Requirements: Comparing Induction Heating vs. Electric Stove

  • Thread starter Thread starter burnit
  • Start date Start date
  • Tags Tags
    Energy
AI Thread Summary
Induction heating is generally more efficient than traditional electric stoves because it focuses heat directly on the cookware, reducing energy loss to the surrounding environment. While both systems convert energy into heat, an induction heater can achieve the same cooking results with less overall energy input. The discussion highlights that even though both systems may draw similar power, the efficiency in heat delivery makes induction heating preferable for specific applications. Additionally, the conversation touches on the efficiency of other heating methods, like heat pumps, but emphasizes the importance of meeting individual specifications. Overall, induction heating offers a more targeted and efficient heating solution compared to conventional electric stoves.
burnit
Messages
52
Reaction score
0
Hi ALL,

I have been reading up on high frequency Induction Heating & some of the benefits for particular applications.

I was wondering if the total energy input is less than other heat sources.

Eg.

Just say we have an ordinary electric stove element that delivers x amount of heat at say 500w input power, now will a high frequency induction heater deliver more heat via the hot induced metal at the same 500w input power?

Or will they draw the same amount of power for the same overall output?

Thank You
 
Engineering news on Phys.org
Depends on what you are asking. Energy is ALWAYS ultimately converted into heat when it is used (remember that heat is "waste energy"); so in that sense even a 500W light bulb would "generate" as much heat as a 500W induction heater; i.e. both both the bulb and the heater would raise the temperature of the room where they were used by the same amount.

That said, another factor is how well "focused" the heat is; i.e. the induction heater might be more "efficient" than a normal stove in the sense that it delivers heat to where you want it (i.e. to heat the food in the saucepan), a normal stove will presumably radiate slightly more energy into the room.
Hence, an induction heater would presumably use less energy (power X time) than an ordinary stove in order to heat a given amount of food to a temperature T; although I suspect the difference is pretty small.
 
Yes, I think your explanation of Focused Heat hit the nail on the head & answered all the questions i had regarding this subject.
Very good explanation.

Thank you for that.

PS, i'll have to pick my game up a bit so everything i ask has at least more than one straight forward answer to keep a thread going hahaha!
 
have to bear in mind that conversion to RF is typically 60%. An 850 Watts microwave oven will draw 1400 Watts from the mains.
 
i think a heat pump may be the most efficient(can't explain why, i hated thermo), but the real question is does it meet your specifications?
 

Thread 'Underwater piezoelectric sensor array receive sensitivity'

Hi all I have some confusion about piezoelectrical sensors combination. If i have three acoustic piezoelectrical sensors (with same receive sensitivity in dB ref V/1uPa) placed at specific distance, these sensors receive acoustic signal from a sound source placed at far field distance (Plane Wave) and from broadside. I receive output of these sensors through individual preamplifiers, add them through hardware like summer circuit adder or in software after digitization and in this way got an...
View full post »

Thread 'Following up on the recent thread about Earth Resistance measurements'

I have recently moved into a new (rather ancient) house and had a few trips of my Residual Current breaker. I dug out my old Socket tester which tell me the three pins are correct. But then the Red warning light tells me my socket(s) fail the loop test. I never had this before but my last house had an overhead supply with no Earth from the company. The tester said "get this checked" and the man said the (high but not ridiculous) earth resistance was acceptable. I stuck a new copper earth...
View full post »
Thread 'Beauty of old electrical and measuring things, etc.'

Thread 'Beauty of old electrical and measuring things, etc.'

Even as a kid, I saw beauty in old devices. That made me want to understand how they worked. I had lots of old things that I keep and now reviving. Old things need to work to see the beauty. Here's what I've done so far. Two views of the gadgets shelves and my small work space: Here's a close up look at the meters, gauges and other measuring things: This is what I think of as surface-mount electrical components and wiring. The components are very old and shows how...
View full post »

Similar threads

Is Induction Heating More Efficient Than Resistive Heating for Water?
Replies
5
Views
4K
Induction Heater at 50Hz or 60Hz from Kitchen Wall Outlet.
Replies
4
Views
2K
Comparison of Induction Heaters
Replies
2
Views
2K
Questions about induction heating
Replies
5
Views
4K
Optimal values for power in an induction heater?
Replies
2
Views
2K
Induction cooking & heat distribution
Replies
2
Views
2K
Understanding relationships in Induction Heating circuits
Replies
1
Views
3K
I Induction heating vs Current heaing
Replies
1
Views
1K
Energy efficiency Gain or Loss? What do you think?
Replies
10
Views
2K
B Can a Heat Pump and Stirling Engine Create a Perpetual Energy Cycle?
Replies
6
Views
3K

Hot Threads

Recent Insights

Back
Top