Analysis of the Performance of a Solar Thermoelectric Generator for Variable Leg Geometry with Nanofluid Cooling

In this study, the impact of nanofluid use in solar-thermoelectric generators (Solar-TEG) on thermal performance is investigated through analysis and simulation methodology. For conventional cooling analysis, we air as a coolant graphene nanoplatelet aqueous nanofluids (GNAN) for cooling. We make comparison between traditional to find best performance. GNAN at dispersion 0.025, 0.05, 0.075, 0.1-wt% are added system. has been used technological development energy conversion. It proposed material achieve better efficiency Solar-TEG. Five different geometries developed analyze Solar-TEG optimal design. The concentration relationship, substrate area, convective transfer coefficient investigated. To simplify speed up simulations, equivalent models based FEM. considering properties temperature-dependent semiconductors. thermoelement materials, lead-tellurium. Lead-tellurium an excellent thermoelectric study supports large temperature ranges (up 750 K). relationship depends which affects maximum five geometry types 5.53%, with 110 × 100 mm2. output power using 0.1% wt refrigerant enhanced by 14.74% 26.39%. improves compared fluid Different convection coefficients verify fact.