Fig. 2: Classification of the temperature distribution and heat flow induced by the Peltier effect.
From: Reverse heat flow with Peltier-induced thermoinductive effect
Schematic of the temperature distribution T(x) and heat flow Q(x) in the sample at the time under the applied rms ac current. The situation is classified by the characteristic dimensionless parameter F representing the product of the thermal time constant of the sample and the current frequency (F ≡ (l/2)2f/2α, where f and α are the current frequency and the thermal diffusivity of the sample, respectively), as (a)–(c) F ≪ 0.05, (d)–(f) ~ 1, and (g)–(i) \(\gtrsim\) 15. (a), (d), (g) The schematic of the temperature distribution corresponding to each F region in the material are shown. The relationship (b), (e), (h) between T(x) and relative position in the sample 2x/l, and (c), (f), (i) between Q(x) and 2x/l are also shown, here l is the length of the sample. In the case of F ~ 1, the thermoinductive effect (reverse heat flow) occurs because of the Peltier effect.
