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Control of operability of Peltier modules in cooling systems based on the analysis of transient operating modes

Kuzichkin Oleg Rudolfovich, Konstantinov Igor Sergeevich, Vasilyev Gleb Sergeevich, Surzhik Dmitry Igorevich

Archives of Thermodynamics

2021

Vol. 42, no 2

31--42

The paper is devoted to the control of operability of Peltier modules based on the analysis of transient modes of their operation. Advantages of using low-power thermoelectric modules for the development of thermoelectric plants with adaptive control systems for the needs of the agricultural complex, which significantly reduce their cost characteristics, are shown. The problem of using the stationary mode of their operation, associated with the low efficiency of the modules, as well as the dynamic mode, associated with the presence of transient processes, is indicated. It is noted that overcoming this problem requires solution of the task of automation of reliability providing the well-known approaches to its solution are shown, for which the key advantages and disadvantages are given. An approach is proposed to complex control of the operability and quality of thermoelectric modules during their expluatation in three components of the physical process of thermoelectric conversion (Peltier thermoelectric effect, electrical and thermal transfer phenomena) by analyzing transients in the system based on identification algorithms. To justify it, the necessary equations and mathematical relations are given. Aprobating of the proposed approach was carried out experimentally by determining the time constants for operable and defective commercially available modules and showed its significant advantages over the standard verification procedure.

Termoelektryczny system chłodzenia dla zastosowań medycznych

Wartanowicz T.

Prace Naukowe Politechniki Warszawskiej. Mechanika

2003

z. 202

331--336

W pracy przedstawiono koncepcję i wyniki badań niskotemperaturowego źródła zimna, w którym zastosowano termoelektryczny system chłodzenia. Ten system składa się z dwóch ukladów: cztero-stopniowej kaskady wykonanej z modułów Peltiera firmy Melcor i układu chlodzącego złącze gorące kaskady. Badania eksperymentalne przeprowadzone w symulowanych warunkach pracy wykazały możliwość osiągnięcia następujących parametrów: Q'opt = 3.25 W przy t.mn = -75.0 oC. Powyższe źródło zimna zostało opracowane w aspekcie wykorzystania jego do budowy kriodestruktora szczególnie dla potrzeb dermatologii do usuwania nowotworowych zmian skóry.

The paper presents the conception and the investigation results concerning thermoelectric low temperature cooling source. The device consists of four-stage cascade and refrigeration system for cooling cascade hot junction. The experimental investigation carried in simulated performance conditions showed the possibility of obtaining the folIowing parameters: Q' opt = 3.25 W at t.min = -75.0 C (st). The presented cooling source may be used in building of cryo-destructor for dermatology.