Timeline for First law of thermodynamics applied to a electrical conduction
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 24, 2019 at 22:04 | vote | accept | some_math_guy | ||
| Nov 24, 2019 at 1:13 | comment | added | Chet Miller | If it were conduction, it would be $kS\frac{\Delta T}{\Delta x}$, where $\Delta x$ is the distance over which the temperature changes. The convective heat transfer rate can be alternately interpreted as conduction of sorts if we set the heat transfer coefficient equal to $h=k/\delta$, where k is the thermal conductivity of the gas surrounding the wire and $\delta$ is the thickness of the thermal boundary layer. We would then have $\dot{Q}=kS\frac{T_0-T}{\delta}$ | |
| Nov 23, 2019 at 20:29 | comment | added | some_math_guy | so , the reason why is hS(T0−T) and not hSdT is because it is convective heat transfer instead of conductive heat transfer? | |
| Nov 23, 2019 at 2:24 | history | answered | Chet Miller | CC BY-SA 4.0 |