thermoelectric module used cooling is made of p-n couples Document Preview: Problem 1 Thermoelectric module used for cooling is made of p-n couples made from Bi2Te3. Each couple is made of two semiconductor thermo-elements having square cross-section a x a 1mm x 1 mm and length L=1.5 mm. The semiconductor thermo-elements are located between two square, ceramic plates. Each side of the plate has dimension ac=30 mm and allows to mount 14 semiconductor thermo-elements, i.e., in total N=7 x 14 p-n couples on the plate surface. Find: (a) Maximum cooling power at Th-Tc=0øC, (b) Maximum cooling power at Th-Tc=50øC, (c) Current intensity corresponding to maximum cooling power.Cold plate temperature Tc= 290 K. Electrical resistivity of Bi2Te3 for both types of p and n elements: 1,0?10-5 O m Seebeck coefficient aSp=2,3 x 10-4 V/øC, aSn=-2,1 x 10-4 V/øC Thermal conductivities: ?p=1.70 W/(m K), ?n=1.45 W/(m K),Problem 1 Thermoelectric module used for cooling is made of p-n couples made from Bi2Te3. Each couple is made of two semiconductor thermo-elements having square cross-section a x a 1mm x 1 mm and length L=1.5 mm. The semiconductor thermo-elements are located between two square, ceramic plates. Each side of the plate has dimension ac=30 mm and allows to mount 14 semiconductor thermo-elements, i.e., in total N=7 x 14 p-n couples on the plate surface. Find: (a) Maximum cooling power at Th-Tc=0øC, (b) Maximum cooling power at Th-Tc=50øC, (c) Current intensity corresponding to maximum cooling power.Cold plate temperature Tc= 290 K. Electrical resistivity of Bi2Te3 for both types of p and n elements: 1,0?10-5 O m Seebeck coefficient aSp=2,3 x 10-4 V/øC, aSn=-2,1 x 10-4 V/øC Thermal conductivities: ?p=1.70 W/(m K), ?n=1.45 W/(m K), Attachments: Topic-15-AHT.doc