Akademik Veri Yönetim Sistemi
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, cilt.40, sa.4, ss.3125-3138, 2026 (SCI-Expanded, Scopus)
This study investigated the electrical energy generation capacity of a thermoelec tric generator (TEG) using various cooling techniques under artificial solar radiation. Solar thermoelectric generators (STEGs) are attracting interest as a source of clean energy. However, despite various experimental parameters, their energy production capacity is only realised under specific laboratory conditions. In the study, an infrared lamp was used to generate artificial solar radiation at levels of 750 W/m2, 1000 W/m2 and 1250 W/m2. This provided a hot side surface temperature for the TEG's energy production. To produce energy efficiently using a TEG, a finned heat sink with a fluid tunnel inside was used. Cooling was performed using a wind fan under wind speeds of 1 m/s, 2 m/s and 3 m/s, and in the other case using a water pump under cooling water flow rates of 10 g/s and 20 g/s. Experimental results have shown that, as the value of artificial solar radiation increases, so do the voltage and power produced by the TEG. The highest voltage value recorded was 1.34 V, which was obtained under conditions of a 1250 W/m2 artificial solar radiation source and within a water-cooled system. This maximum voltage was determined while operating under a load of approximately 200 Ω. The calculated output power value in this case is approximately 12 mW. Additionally, a numerical model was incorporated into the study to examine the thermal and electrical performance of the air-cooled TEG system under various operating conditions. The results revealed that hot side and ambient temperature had a significant effect on the output of the TEG, but the effect of air velocity decreased significantly after a certain point.