Controlling the reliability performance of a thermoelectric cooler under variable heat load

The work is devoted to substantiation of possibility reduction failure rate thermal mode support system when operating with variable load by control reliability indicators thermoelectric cooler. A mathematical model for evaluating the effect on a single-cascade cooler at given temperature level cooling, medium temperature, geometry thermocouple branches various current modes operation considered. relationship between steady-state time and mass heat capacity structure, relative difference presented. results relation current, refrigerating factor, mode, energy input, dissipation radiator, are Calculations have been made cooling level, differential, branch characteristic modes. It shown that decreasing design cooler, value decreases, thus increasing probability no-failure operation. obtained serves as primary information providing thermally loaded elements load. Using change element cold electrode feature, it possible reduce which contributes average