Difference between watts and joules?
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The SX Mini M series also applies Joules in TC mode. From my understanding, and I have tried myself to "get it". Is that Joules and watts are really the same thing. I would love a better explanation too. What I do know is that setting higher Joules only helps with ramp up time of your Nickel coils, but will level out once the set temp is reached.
The way I understand it, watts (power) is equal to joules (energy) per second. Here's a much better explanation of this.
To say that we vape at X joules is meaningless in defining our vape experience. To put it another way, setting joules without a time factor is meaningless.
I don't know why joules are used in vaping, but I suspect it may have something to do with patent issues. But that's just my opinion
The Yihi chip mis-uses the definition of Joules.
A Joule is a Watt Second (NOT Watts per second). A Joule is equal to one watt of power delivered over 1 second of time. That's the correct definition.
However, this means you divide your wattage by the total number of seconds it is applied.
10 Joules applied for 1 second is 10 Watts.
10 Joules applied for 10 seconds is only 1 Watt.
So if you set your mod for 40 Joules and took a 5 second draw you would be vaping at 8 Watts.
Yihi misuses the term and really means Watts PER Second, which is NOT a Joule. To them, 40 Joules is 40 Watts per second regardless of the total duration, which is not how Joules are calculated.
A Joule is a Watt Second (NOT Watts per second). A Joule is equal to one watt of power delivered over 1 second of time. That's the correct definition.
However, this means you divide your wattage by the total number of seconds it is applied.
10 Joules applied for 1 second is 10 Watts.
10 Joules applied for 10 seconds is only 1 Watt.
So if you set your mod for 40 Joules and took a 5 second draw you would be vaping at 8 Watts.
Yihi misuses the term and really means Watts PER Second, which is NOT a Joule. To them, 40 Joules is 40 Watts per second regardless of the total duration, which is not how Joules are calculated.
A Watt-Second is one Watt of work (in this case heat) sustained for one second not delivered over one second.
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A Watt-Second is one Watt of work (in this case heat) sustained for one second not delivered over one second.
Pedantic.
At the end of the second you have only done one watt of work. You're not doing one watt every 0.00000000000000000000000000000000000000000000000000000000000001 of a second sustained for a full second, which would end up being 100,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 watts worth of work in one second. It's a total of one watt worth of work applied over a total of one second of time. However, if the time increases but the Joules do not, then the Joules is divided by the number of seconds.
Watt Second might be easier for most to understand in that aspect. 10 watt seconds over 10 seconds is 1 watt per second.
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If you deliver the voltage and amperage to a coil so that it produces one Watt of heat continusly you are still only getting one watt of heat. But if you count the number of seconds that you were getting one Watt of heat that is the number of Watt-Seconds.
This is misleading at best, and at worst completely wrong. Watts are not a "total" amount, by any means. Watts are a rate or speed at which work is performed (like "miles per hour"). Joules are the total amount of work done (like the total number of "miles" traveled, regardless of how many hours it takes to cross them.)
One "watt" is equal to a rate of "one joule per second."
One "joule" is equal to "one watt-second" (note: "watt-second," not "watt per second"). That is, the amount of work equivalent to a rate of one watt delivered over a duration of one second. Or half a watt for a duration of two seconds. Or five watts for 0.2 seconds. In the end, these all deliver the same amount of work (one joule), just like going 1mph for an hour takes you the same "one mile" as does going 60mph for one minute, of one foot-per-second for 5,280 seconds, etc.
In the end, the key here is that the Yihi chips are misusing the term "joules." What they really mean are joules-per-second, which are exactly the same thing as watts. That's the definition of a watt. They should just call them watts, because that's what they are.
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What I really want to know is do these Joules (be they Chinese or Magic or whatever).......................
Chinese Joules work differently...........maybe they are Magic Joules
Have a lot of
Do they look
Are they
Should I buy them? If so, I say
Can confirm from my physics class. Guy above is right that a watt is one joule per second. I remember calculating stuff. It's work over time equals power m. Would also be a watt second come to think of it in my head. Both of you are right. Yay
They aren't using the word correctly, it is that simple...then people that know joules then try and warp the meaning to fit, is the way I see it
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