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math111
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1 Watt = 1 Joule/Second
So does that mean if I input 4000 watts for 30 seconds that will output 12000 Joules?
So does that mean if I input 4000 watts for 30 seconds that will output 12000 Joules?
mrmiller1 said:Almost. 120,000 J.
mrmiller1 said:Yeah, I was just messing.
So in general power (P) is similar to energy (E) the same way velocity (V) is similar to displacement (x). The derivative of energy with respect to time is equal to power.
dE/dt = P vs. dx/dt = Vx
HallsofIvy said:First, how energy translates to temperature depends upon the material and exactly how you are "inputting" the energy. If the tempearture does, in fact, increase as you keep adding the energy, the material will eventually melt.
math111 said:Inputting the energy: a bolt is connected to the material and a wire is connected to the bolt from a power source of 208V. When plugged in does energy keep being added over time or is this constant? This might help me understand it more because all I know is...
1. More time = more energy = higher temperature to infinifnty
or
2. This energy input is constant and will increase the temperature of the S/S up to a certain temp and hold it. If so how do I find that temp where 4.0 KW = ?
uart said:If something is unable to cool itself by radiating or conducting away energy then yes it will continue to heat up as long as you supply power. Your stainless steel sheet however can obviously radiate away excess energy once it's sufficiently hot.
math111 said:Inputting the energy: a bolt is connected to the material and a wire is connected to the bolt from a power source of 208V. When plugged in does energy keep being added over time or is this constant? This might help me understand it more because all I know is...
1. More time = more energy = higher temperature to infinifnty
or
2. This energy input is constant and will increase the temperature of the S/S up to a certain temp and hold it. If so how do I find that temp where 4.0 KW = ?
RonL said:uart beat me to the answer, and he is correct.
Let me give another example for you to consider...an incandescent light bulb has a filament inside that will reach a temperature of close to 5,000 F degrees, it does not melt, nor does the glass around it.
It is a matter of thermal discharge rate.
Ron
math111 said:Is it possible to find out how much heat/temperature is given off while s/s is being heated via 4Kw. Would that be considered the finding the natural convection of s/s??
To calculate the number of Joules from Watts and time, you can use the formula: Joules = Watts x Seconds.
The conversion factor between Watts and Joules is 1 Watt = 1 Joule/second. This means that for every second, 1 Watt of power is equal to 1 Joule of energy.
Watts and Joules are both units of measurement for energy. Watts measure the rate at which energy is used or transferred, while Joules measure the amount of energy itself.
Using 4000 Watts for 30 seconds represents a specific amount of power and time, which can be used to calculate the amount of energy (in Joules) consumed or transferred. It can also be used to determine the power output of a device or system.
Aside from power (Watts) and time, other factors that may affect the calculation of Joules include the efficiency of the system or device, as well as any losses or gains of energy during the transfer or usage process.