Effect of Temperature on Thermoelectric Generator (TEG) Voltage Output through Characterization for Mobile Phone Charging Application
Authors: *Igwilo, O.C., Mathurine, G., Onyegbadue, I.A., Azike, R.U., Onoroh, F. And Eze, M.J.
DOI Info: http://doi.org/10.5281/zenodo.10441914
ABSTRACT
The lack of uninterrupted power supply has caused a quagmire in the telecommunication sector in rural areas in Nigeria. This work focused on evaluating the effect of temperature on thermoelectric generators (TEG) to generate voltage by characterization of the TEG to charge mobile phone with a view to determining the best temperature for high-quality voltage performance for a certain load. This work used two thermoelectric modules connected in series while maintaining the interface at different temperatures in the range of 28.7 to 128.7 °C to produce the desired voltage at 10 °C intervals. The cooling start temperature was pegged at 132.1 °C and dipped at 124.6 ºC. It was observed from the result that the optimal temperature for the heating trial experiment was 88.7 ºC and the optimal cooling temperature was between 132.1 and 132.6 ºC which resulted in a charging voltage of 6.19 to 7.26 V. This indicates that below the given temperature and voltage for both heating and cooling profile, the phone will not charge due to poor current and voltage levels. This suggests that maximum power point tracking is recommended in order to adjust the temperature to achieve the appropriate voltage. The TEG1-241-1.4-1.2, however, is unable to withstand temperatures higher than 200 °C.
Affiliations: Department of Electrical/Electronics Engineering, College of Engineering, Igbinedion University, Okada, Nigeria.
Keywords: Temperature, Voltage, Thermoelectric Generator, Mobile Phone, TEG1-241-1.4-1.2
Published date: 2023/12/30
