The Pyrex SS hybrid Wick
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I ordered on the 21st but on the other side of the country.....hopefully soon
I'll let you get back to it....good luck
Not to interrupt the discussion....but:
Time to get busy....
Continue on gentleman.
Lucky! what sizes did you end up going with? Pyrex or FQ?
Der it says right in the pic
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Exactly. it is meant to take heat away from the heat source, and spread it out where it can dissipate slowly. As heat sink implies, it sinks the heat within itself.
While our application differs from the intended purpose, it there in fact information which supports the notion that the material doesn't pass sufficient heat along the Z axis for our situation?
Not to interrupt the discussion....but:
Time to get busy....
Continue on gentleman.
Hurry it up, we're droolin', here!
I believe he said he researched this. Besides, a heat sink is not a radiator - sure most metal ones have fins, but they are designed to soak up a large amount of heat and dissipate it slowly. Ever feel the back of your stereo amplifier - you can touch it without getting seriously burnt. Don't even try to touch the transistors it is cooling, though!
If it passed heat straight through it, then it would not be a heat sink; and the description says heat sink..
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Not to interrupt the discussion....but:
Time to get busy....
Continue on gentleman.
The smallest ones in the storeroom at work are 5mm, figured I'd just wait on the FQ
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Not to mention being used in applications such as freezer defrost heaters. From sub 0 degrees to whatever heat 480 watts at 120v would be.
Universal 11-3/8" Quartz Tube Defrost Heater GH265
Hey that may make one heck of a hookah !
Thermal Conductivity (W/m K) <-- I lack the proper context to understand that and the associated information in the circumstance of a flat sheet.
What does w/m.k mean in heat conduction terms?
Heat transfer by Conduction,
Q = k A dT dt/x
k = (Q/dt) * (1/A) * (x/dT)
Heat conduction is defined as the quantity of heat, ΔQ, transmitted during time Δt through a thickness x, in a direction normal to a surface of area A, per unit area of A, due to a temperature difference ΔT, under steady state conditions and when the heat transfer is dependent only on the temperature gradient.
Alternatively, it can be thought of as a flux of heat (energy per unit area per unit time) divided by a temperature gradient (temperature difference per unit length)
k = Q x / A dt dT
In physics, thermal conductivity, k, is the property of a material that indicates its ability to conduct heat. It appears primarily in Fourier's Law for heat conduction. Thermal conductivity is measured in watts per kelvin per metre (W·K−1·m−1). Multiplied by a temperature difference (in kelvins, K) and an area (in square metres, m2), and divided by a thickness (in metres, m) the thermal conductivity predicts the power loss (in watts, W) through a piece of material.
Great. Now I don't have any better understanding of it either.
Regardless what the units are if the units are the same between comparable items then what the unit means is somewhat irrelevant.
W/m K = watts per kelvin per meter......just like the above post states
Regardless of how the documentation is interrupted the video shows a lighter being used on one side and temp indicating tape on the other. Showing how fast the PGS heats and cools compared to copper which is one of the best.
W/m K = watts per kelvin per meter......just like the above post states
Regardless of how the documentation is interrupted the video shows a lighter being used on one side and temp indicating tape on the other. Showing how fast the PGS heats and cools compared to copper which is one of the best.
What does w/m.k mean in heat conduction terms?
Heat transfer by Conduction,
Q = k A dT dt/x
k = (Q/dt) * (1/A) * (x/dT)
Heat conduction is defined as the quantity of heat, ΔQ, transmitted during time Δt through a thickness x, in a direction normal to a surface of area A, per unit area of A, due to a temperature difference ΔT, under steady state conditions and when the heat transfer is dependent only on the temperature gradient.
Alternatively, it can be thought of as a flux of heat (energy per unit area per unit time) divided by a temperature gradient (temperature difference per unit length)
k = Q x / A dt dT
In physics, thermal conductivity, k, is the property of a material that indicates its ability to conduct heat. It appears primarily in Fourier's Law for heat conduction. Thermal conductivity is measured in watts per kelvin per metre (W·K−1·m−1). Multiplied by a temperature difference (in kelvins, K) and an area (in square metres, m2), and divided by a thickness (in metres, m) the thermal conductivity predicts the power loss (in watts, W) through a piece of material.
Great. Now I don't have any better understanding of it either.
You have to simplify the formula before it can be grasped as a relative concept.
Fig. 1
Mé = W┬ƒ¿
I hope this clears things up, hopefully in the mean time someone can find a calculator with those buttons on it.
480 watts is 480 watts; the voltage is immaterial - W = V * I = V2 / R = I2 * R. Watts is power and power is heat - the heat produced would depend on the properties of the element in question. But that is a very interesting property of Fused Quartz.
It would be 1638.924455866 Btu/hour Quite significant. A typical clothes dryer or electric furnace heating element is 5000 watts or 17072.1297486 Btu/hr. Neverless, it is enough to melt ice through radiant heat.
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Maybe I am the one that is mistaken but a heat sink itself (typically thought of as finned aluminum object) by itself does not dissipate heat. It will absorb the heat and spread it out, but without a method of extracting the heat (usually air supplied by a fan) the heat sink temp will eventually stabilize with the source heat.
How I understand the PGS is that it is not necessarily a heat sink by itself but an efficient method of transferring heat to another object. I envision something like PGS in my phone sandwiched between the processor and the aluminum panel that is the back of my phone, thus transferring the heat from the processor inside my phone to the aluminum panel on the outside of the phone.
How I understand the PGS is that it is not necessarily a heat sink by itself but an efficient method of transferring heat to another object. I envision something like PGS in my phone sandwiched between the processor and the aluminum panel that is the back of my phone, thus transferring the heat from the processor inside my phone to the aluminum panel on the outside of the phone.
Interesting - I did not think of it in that way. I see what your saying - like the heat sink compound you sandwich between a processor and the fan. Although they do state that it is a heat sinking material, they do not fully explain its use in a heat sinking application. But then again, it has been said that on one axis it insulates. Hmmm? Perhaps a re-read is in order...
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That is how I interrupted the documentation as well, but the video and my understanding of a heat sink contradicts that.
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