English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

For example, I would like to have something like a square aluminum pad or something that can take in heat from a source and transfer it some way to another location without getting too hot. Maybe through an insulated wire of some sort? Possible?

2007-05-25 09:44:48 · 5 answers · asked by heatseeker 2 in Science & Mathematics Physics

I was thinking more of a small plate, maybe 4x4" or something quite small. Possible to connect that with something inconspicuous to cloth heating pad.

Say, a pad then connected to the bottom of a tent.

2007-05-25 10:55:43 · update #1

5 answers

Sure, 3 methods of heat transfer:

convection (move the hot stuff)

conduction (heat moves by touching)

and radiation (hot stuff radiates photons).

Convection is usually the quickest way to move a lot of heat--heat up something and physically move it. You can use a lot of metal to take the heat away by conduction. Big panels with lots of surface area can transfer heat by radiation.

2007-05-25 09:48:54 · answer #1 · answered by Anonymous · 0 0

I don't necessarily understand what you are trying to achieve. If you mean you want a plate to absorb heat, then transfer it to another plate through a small wire, I know of no simple way to do that.
The plate absorbibg heat will transfer the heat absorbed until the second plate is warmed to the same temperature as the first plate. If the two plates are in contact and no additional heat load is being added to the firse plate, the temperature of the first plate will fall while the second plate sees a rise in temperature. They will both end up being at the same temperature. The second plate will not become hotter than the first plate. (Assuming there no other undescribed environmental factors influencing the temperatures.)
A small heat conductor such as a wire cannot do a very efficient job of transferring the heat between the two plates.
A heat pump (basicly a type of refrigeration system) could change all that but it is a mechanical device that uses energy. Your question did not include the addition of mechanical devices.
With a heat pump you would have a first plate with liquid refrigerant under high pressure flowing to it through a tube. There would have to be a flow control device (such as a valve) at the inlet to the refrigerated plate. Leaving the refrigerated plate would be a second tube.
That second tube would connect to a pump that would move the refrigerant gas at a low pressure away from the refrigerated plate. That plate would be called an "evaporator" in the refrigration industry.
When the refrigerant gas moves through the pump the gas leaving the pump will be at high pressure and will also be hot.
That gas will have to flow over to your second plate that you are trying to move the heat to. That second plate will become a "condenser". It will get hot and the act of transfering the heat from the refrigerant gas to the plate will cause the gas to condense back into a liquid.
The liquid refrigerant can re driven by the pressure from the pump and allowed to flow through another tube from the second plate back to the first plate, replinishing the suply of liquid refrigerant at the valve device that controls the flow of the refrigerant.
That valve is called an expansion valve.
When the liguid refrigerant flows through the valve (a restricting device) the pressure falls and the reduction in pressure lowers the boiling point of the liquid. As the liquid boils, it absorbs the heat from the first plate.
The cycle will contonue and the absorbed heat will be moved back to the pump.
A bit complex, but you now have a device that can move the heat from the first plate to the second plate.
That is essentially what is happening when you use a "heat pump" system to heat your home, or an air conditioner to cool your home.
You literally move heat from one place to another.

2007-05-25 12:34:07 · answer #2 · answered by Philip H 7 · 0 0

Sure, it's possible. Maybe even practical, depending on exactly how much heat you want to transfer, temperature difference between heat source and heat sink, and certain other factors. What you need is an amazing device called a heat pipe. Attach one end to the warming plate in your tent, throw the other end into your camp fire, and enjoy the warmth as the fire dies down overnight.

See this web site for more information:

http://www.cheresources.com/htpipes.shtml

2007-05-25 13:35:26 · answer #3 · answered by hevans1944 5 · 0 0

Of course check that the power supply matches the volts, phase and frequency requirements on the name plate data, etc. The motor is cooled by the ambient air passing through it and may even have a small "fan" attached to the motor shaft. The air flow path must remain clean to permit sufficient air flow and to promote heat transfer from metal surfaces. Check the nameplate data (technical manual?) for any ambient air temperature limits and check the ambient air temperature during various operating conditions. It may be necessary to pipe in cooler air. Also check the motor current under various loads to be sure steady state name plate data current is not exceeded. Good luck.

2016-05-17 22:15:55 · answer #4 · answered by Anonymous · 0 0

yes. heat is transferred from the sun to the earth.

2007-05-25 09:49:14 · answer #5 · answered by Kyle B 2 · 0 0

fedest.com, questions and answers