PENGARUH PERBANDINGAN BAHAN HEATSINK TERHADAP TEGANGAN LISTRIK YANG DIHASILKAN TERMOELEKTRIK GENERATOR SEBAGAI ENERGI TERBARULKAN

Alifiansyah, La Roy Bhavi (2025) PENGARUH PERBANDINGAN BAHAN HEATSINK TERHADAP TEGANGAN LISTRIK YANG DIHASILKAN TERMOELEKTRIK GENERATOR SEBAGAI ENERGI TERBARULKAN. Sarjana (S1) thesis, Universitas Islam 45.

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Abstract

The need for environmentally friendly alternative energy sources is becoming increasingly urgent due to the rising energy consumption and the depletion of fossil fuel reserves. One promising solution is the utilization of a thermoelectric generator (TEG), a device capable of directly converting heat energy into electrical energy through the Seebeck effect. This study aims to examine the effect of different heatsink materials on the output voltage generated by TEG as an application of renewable energy. Two types of heatsink materials used in this research are aluminum and copper, each with different thermal conductivities. The TEG setup is arranged with one side exposed to a heat source (hot side), while the other side is cooled using a heatsink made from the tested material. The experiment was conducted by keeping the cold side temperature constant, while the hot side temperature was influenced by the heat transfer efficiency of the heatsink. Temperature and voltage data were recorded using an infrared thermometer and a digital multimeter. The results show that the heatsink material significantly affects the voltage output. The TEG with a copper heatsink produced the highest voltage, followed by the aluminum heatsink. This corresponds to the thermal conductivity values of each material, where copper has the highest heat transfer capability, thus creating a greater temperature gradient across the TEG module. Based on these results, it can be concluded that the choice of heatsink material greatly affects TEG performance. A TEG with a copper heatsink has greater potential for optimal heat-to-electricity conversion and can be integrated into small-scale renewable energy systems. This study contributes to the development of clean and efficient energy technologies.

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