Figure 4.

(a) TGE efficiency for hollow and filled thermoelectric legs as a function of the cross-sectional area. (b) Relative increase percentage in the TEG efficiency for the hollow compared with the filled case.

(a) TGE efficiency for hollow and filled thermoelectric legs as a function of the cross-sectional area. (b) Relative increase percentage in the TEG efficiency for the hollow compared with the filled case.