Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Analysis of the thermoelectric potential of a homemade Peltier refrigeration system under different electrical operating conditions.
Submission Author:
Claysson Campos Soares , SP
Co-Authors:
Claysson Campos Soares, Jessica Martha Nunes, Marcelo Marques da Silva
Presenter: Jessica Martha Nunes
doi://10.26678/ABCM.COBEM2023.COB2023-0387
Abstract
Peltier Effect cells and tablets represent a modern application of semiconductors. These thermoelectric components, when traversed by an electric current, transfer heat from one of their faces, dissipating it on the opposite face and promoting a thermal gradient widely explored in compact cooling systems, combined with ventilation and heat dissipation devices. Such refrigeration systems have a good service life and do not require the use of conventional refrigerants. A compact homemade thermoelectric cooling system was developed to analyze the influence of different voltages (9 V, 12 V and 15 V) on three models of commercial Peltier tablets (TEC1-12708, TEC1-12710 and TEC1-12715). Designing thermoelectric systems requires considering, in addition to the heat transfer phenomena involved, the cooling power provided which, in turn, is associated with the electric current and potential difference applied. The tests carried out expose the suitability of system as a refrigerator, operating, in the best test, with a temperature reduction of 11.7°C over 25 minutes, with the TEC1-12708 combination, 12 V and 3.45 A. Others results, negatively affected by the technical unreliability of the tablets and individual incompatibility of ventilation and thermal dissipation system, present significant resolutions, although with inferior results.
Keywords
Peltier effect, Electric Current, Heat transfer, refrigerator, Experimental tests
