Foreseeing the reliability indexes of two-cascade thermo-electric cooling device in the mode of ΔTmax

Abstract

There has been offered a correlation model of reliability indexes for two-cascade TED of set design with basic meaningful parameters at successive electric connection of cascades. The model allows to estimate both cooling possibilities and reliability indexes of the TED of set design, working in the mode of ΔTmax, taking into account the relation of amount of thermo-couples in cascades and temperature dependence of parameters. The offered approach allows to forecast the reliability indexes to the TED of set design under various conditions of exploitation and to conduct the optimized planning of REA with the use of two-cascade TED.

Keywords

• failure rate
• probability of failure-free operation
• cascade thermoelectric device