Wood stove top fans (heat powered)

[Snobdds]

Then why have the distinction of infrared?

Just put a nuke in the living room and say it's safe because it just electromagnetic radiation.

 

[MAX-24-Dean]

were you shocked to see boiling water mixed the dye better?

I assume you realize that the water was visibly no longer boiling when we added the dye. As I recall it was measured to be 208 Degrees F. when we added the drop of red dye.
But yes, it was a little bit of a suprise how well the dye mixed with the hottest water vs the other lower temp beakers.
In the 39 degree beaker the drop of dye just sat there, really no mixing. Dye was at room temperature. The elevation of the dye when dropped into the water was about 1/4" above the surface.

 

[MossRoad]

Then why have the distinction of infrared?

Just put a nuke in the living room and say it's safe because it just electromagnetic radiation.

Because it differentiates between different parts of the entire electromagnetic spectrum.

visible light is electromagnetic
radio waves are eletromagnetic
TV signals.

The Electromagnetic Spectrum​

The electromagnetic (EM) spectrum is the range of all types of EM radiation. Radiation is energy that travels and spreads out as it goes – the visible light that comes from a lamp in your house and the radio waves that come from a radio station are two types of electromagnetic radiation. The other types of EM radiation that make up the electromagnetic spectrum are microwaves, infrared light, ultraviolet light, X-rays and gamma-rays.

 

[MossRoad]

Here's a pretty good graphic of where different things fall, all within the electromagnetic spectrum.

 

[Snobdds]

Because it differentiates between different parts of the entire electromagnetic spectrum.

But the question becomes, why do we need to cloud the waters with parts of the spectrum we're not even talking about?

 

[CalG]

Here's a pretty good graphic of where different things fall, all within the electromagnetic spectrum.

View attachment 733967

Mid-Infrared Instrument (MIRI) - NASA Science

The Mid-Infrared Instrument (MIRI) has both a camera and a spectrograph that sees light in the mid-infrared region of the electromagnetic spectrum. As the

jwst.nasa.gov

5-28 microns. and we will make pretty pictures of the universe ;-)

 

[Cougsfan]

Just to shoot an already dead horse: I remember a professor talking about this subject in my heat transfer and thermodynamics class back a half century ago. "Except in rare instances, the only pure form of radiant heat we see is that from the sun. That is because of the large vacuum that is between us and the sun negates the possibility of any other kind of heat transfer. All of what we commonly see is a combination all all three types of heat transfer with varying degrees of each."

Another thing he pointed out that has stuck with me. You ever notice how sometimes a 72 degree room may feel a wee bit cooler in the winter than it does in the summer? That is because of the change of the amount of radiant heat given off by the walls. That radiant heat is independent of the air in the room.

On a wood stove if you add a fan, you are reducing amount of radiant heat and increasing the amount of convection heating. Unless you change the flue temperature (which can indeed happen when you add a fan), the total amount of energy transferred to the room from the burning of a piece of wood going to be the same, regardless of the method of heat transfer that is dominant.

 

[DGZRT]

I seriously just wasted 10 mins of my life . This interesting thread turned into the Gun Time thread Where everything is so Politically correct .
and 5 people know more than the world combined and They will prove it to you !!!

 

[Snobdds]

and 5 people know more than the world combined and They will prove it to you !!!

Damn straight...

 

[CalG]

But the question becomes, why do we need to cloud the waters with parts of the spectrum we're not even talking about?

Why?

Because ALL wavelengths are emitted from all sources, and all radiant emissions are ultimately absorbed and converted to HEAT, only to be re-emitted again by your wood stove ;-)

Think of it, that little stove top fan takes heat away from the stove (by a combination of mechanisms) Converts the heat to ELECTRICITY, the electricity is converted to mechanical motion, that accelerates (moves) air molecules. The rapidly moving air molecules then strike your skin , the motion is converted back to heat, which warms you. But also triggers a small electrical signal that tells your brain that you are feeling something warmer than whatever you were feeling prior to the impact. ;-)

The NUKE in the front room produces IONIZING radiation. That's a special kind. Deadly to living things, but not to bad for stones and such.

eta Full disclosure....

My professional career was fully consumed in the design and construction of structures composed to alter, control and differentiate the electromagnetic spectrum at frequencies between the Vacuum Ultra-Violet out to 28 microns.

So if I come on as being verbose, it is because the topic is very interesting to me.
I try to move on, but habits are habits ;-)