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Fabrication of thermoelectric generator using local minerals at Loei Province, Thailand |
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| รหัสดีโอไอ | |
| Creator | Areerat Dawongsa |
| Title | Fabrication of thermoelectric generator using local minerals at Loei Province, Thailand |
| Publisher | Sakon Nakhon Rajabhat University |
| Publication Year | 2559 |
| Journal Title | SNRU Journal of Science and Technology |
| Journal Vol. | 8 |
| Journal No. | 1 |
| Page no. | 204-210 |
| Keyword | Local minerals, p-Fe2O3-SO3-SiO2-others, n-Fe2O3-SiO2-CuO-others, Thermoelectric material,Thermoelectric property and efficiency, Thermoelectric generator |
| ISSN | 1906-5966 |
| Abstract | Local Thermoelectric mineral specimens at Loei Province, in the northeastern part of Thailand, wereprepared as powders and bulk solids form by crushing, calcination and annealing, pressure and sintering, cuttingand polishing. Mineral samples were used to analyze the composition and phase, determine the thermoelectricproperty and efficiency, design and construct a thermoelectric generator. Chemical composition and phaseidentification of powder samples were analyzed by the x-ray fluorescence (XRF) and x-ray diffraction (XRD),respectively. XRF and XRD results indicated that the mineral samples comprised the Fe2O3-SO3-SiO2-others, andFe2O3-SiO2-CuO-others. From the thermoelectric property and efficiency determinations, the p-Fe2O3-SO3-SiO2-others and n-Fe2O3-SiO2-CuO-others bulks were found to exhibit the thermoelectric figure of merit in orders of10?11 and 10?13 K?1, respectively. A fabricated thermoelectric generator made from twenty pairs of p-Fe2O3-SO3-SiO2-others and n-Fe2O3-SiO2-CuO-others legs that can be provided the open circuit voltage and short circuitcurrent up to 71.7 mV and 0.08 ?A for a temperature difference of 38 K at room temperature, respectively. |
