blueroomelectronics
Well-Known Member
Ok it melts at 600.65K
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At the North Pole.Ok it melts at 600.65K
Sparky I can appreciate your enthusiasm with this. However, being sort of new to all of this there is more to heat than toasting bread. Now I don't know your final objective, maybe in melting lead to cast bullets I caught a few too many fumes?
I think you really need to read up on all of this a little. When anything is designed to do anything (profound statement) considerable effort is placed into things like sensors and control for heating applications. Everything from hot plates to small ovens to large furnaces running at 2,000 degrees F. requires considerable planning and design thought. This is especially true when you decide to splitting degrees into .1 degree increments from a control point of view. I think what you need to do is well define your project, not to this forum but to yourself. Then study a little on your objective. Yes, it is a time consuming affair to do that but less that, not much will happen. I am not trying to dissuade you, rather encourage you to think this through. Block diagrams are a good start but need things filled in.
Ron
With Peltiers you must remember if you cannot remove the cold that is generated then the hot side will stop making further heat and vice versa.
To get a effective heating and cooling range from a plate you need to have as bigger differance of thermal change on the oppersite side as possiable.
Pete.
I hope this isn't another one of Sparky_s's free energy experiments...
No theory. I rely on guesswork and speculation.Please elaborate on your theory about metals and temperature.
Why do you think you need 10 or 20 watts? A USB cup warmer gets a lot hotter than 43C.So, a good solution could be to get an USB cup warmer and use a DC source instead the usb connection to heat the metals? The usb warmer is designed to run at 2.5 watts and the liquid can be heated to around 50 or 60 º C. If I use that device using 10 or 20 Watts, can I destroy the internal resistances? or maybe it will work?
Yeah, I would really like to know what this is all about also.So what is the point of putting lead in a comfy bath for hours?
So what is the point of putting lead in a comfy bath for hours?
Why do you think you need 10 or 20 watts? A USB cup warmer gets a lot hotter than 43C.
I guess that depends on how big your piece of lead is. With enough insulation and enough time, you could do it with a milliwatt.Just only curiosity and some free time to be used in something interesting.
2.5 Watt is enought to heat a metal around 43C?? I thought I had to use more power. But it was only a thought, without searching before about the power requirements
I guess that depends on how big your piece of lead is. With enough insulation and enough time, you could do it with a milliwatt.
BTW, if you think I (we?) believe your reason for doing this, think again.![]()
It's more family friendly than the Jean Luc Picard version![]()
I can save you a lot of time and effort. After you heat lead at 43.2C for any length of time, it will still be a solid chunk of lead. After a loooonnng time, it might have oxidized a little more, if in the presence of oxygen.The piece of metal is around 5 grams, so it's little. I will try it with the usb warmer.