Watts Hot
If a hot plate has a power of 1200 watts how long will it take to heat to 450ºC?
If a hot plate has a power of 1200 watts, a max temp of 450ºC and operorates on a 240V 50Hz supply how long will it take to heat to 450ºC max plate temp?
The parts of your question that are missing:
Initial temperature
Specific Heat Capacity of the Material in question.
Assuming 20 Degrees Celsius…
The equation you need to solve is:
[(450-20) * (Specific Heat Capacity)]/1200 Watts = X Seconds
The terms are explained as follows:
(450-20) gives you the difference in temperature you are attempting to achieve. Units: Degrees Celsius
Specific Heat Capacity tells you how much energy, in joules, is required to heat up an object by one Degree Kelvin (1 Kelvin = 1 Celsius) Units: Joules/Degree Celsius
Multiplying the Difference in temperature (Degrees Celsius) by the Specific Heat Capacity (Joules/Degree Celsius) gives you the amount of energy to be added to the material. Unit: Joules
A watt is defined as one Joule per second. Unit: Joules/Second
By dividing the amount of energy to be added (Joules) by the RATE of energy addition (Watts, or Joules/Second) you are given the amount of time required. Unit: Seconds.
I’ll trust you can convert Seconds into any time-scale you desire.
Chamillionaire featuring Dj Michael Watts-Hot Girl
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