  We propose the rotating thermoelectric (TE) device comprising of the single
TE conductor operating in two periodical steady state modes: the switching
periodical mode (P-mode) when hot and cold ends of the TE conductor are
periodically instantly reversed and the continuous sinusoidal mode (S-mode)
when the temperature of TE conductor edges varies continuously according to
sine wave. Power generation and cooling regimes of rotating (TE) device in the
periodic steady state was studied analytically. The efficiency and the cooling
temperature of rotating TE device was found to depend not only on the
dimensionless TE figure of merit, but also upon an additional dimensionless
parameter comprising of the rotation period, the size and the thermal
diffusivity of the TE conductor. The proposed analytical method can be
generalized to even more complex timing modes and allows to solve the
optimization problem for TE device parameters. We investigated whether it is
possible to achieve better performance for rotating TE device comparing to
conventional stationary steady state, the S-mode was shown to demonstrate
deeper cooling at certain times.
