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THERMO-ELECTRIC & VORTEX TUBE REFRIGERATION CLASS NOTES

THERMO-ELECTRIC & VORTEX TUBE REFRIGERATION CLASS NOTES Thermo-electric refrigeration uses semi-conductors. A semiconductor is a combination of two materials having high electrical conductivity and low thermal conductivity. The property defining the quality of thermo-couple is  ‘Figure of Merit’. Figure of Merit = Z= α2σ/k Where α is the Seebeck coefficient of the two materials of the semiconductor σ…