Design and implementation of a new portable thermoelectric generator for low geothermal temperatures

Abstract

In this study, the design and implementation of a new portable thermoelectric generator of 100 W for low geothermal temperatures has been carried out. For this system, a new SCADA-based testing and measuring system equipped with special software has been developed and employed for the first time. Thus, effects of the hot-cold water flow rates, the temperature differences between the surfaces and the load resistance affecting output power and efficiency of the thermoelectric generator have been investigated by a single testing and measuring system device. In the established SCADA-based testing and measuring system, the hot-cold water flows passed throughout the surfaces of the thermoelectric generator were increased by up to 3.7 and 12.8 l/min, respectively. Then, the temperature difference between the surfaces of the thermoelectric generator was measured as 67°C. When the load resistance of the thermoelectric generator was about 15 Ω, the maximum power of the thermoelectric generator was obtained as 41.6 W and the conversion efficiency was calculated as 3.9%. Also, the SCADAbased testing and measuring system will open up a new stage in examination of various thermoelectric generators.

Overview of Power Management for Triboelectric Nanogenerators

“…With the arrival of the fourth industrial revolution, that is based on the internet of things (IoTs), wireless sensor networks (WSNs), and artificial intelligence (AI), the desire for numerous, miniature, and distributed wireless power sources is unprecedented . Over the past decades, with huge efforts, several promising new energy technologies based on the effect of the photovoltaic, thermoelectric, piezoelectric, and triboelectric have been invented to meet this urgent demand. Especially, the triboelectric nanogenerators (TENGs), derived from the second term in Maxwell's displacement current and invented by Wang in 2012, can harvest tiny human kinetic energy and ambient mechanical energy, which is omnipresent but usually wasted in our daily life.…”

Prospects of Autonomous Volcanic Monitoring Stations: Experimental Investigation on Thermoelectric Generation from Fumaroles

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Adaptability of grid connected PV inverters with thermoelectric generator as power source: a performance comparison

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