Journal
GLOBAL CHALLENGES
Volume 4, Issue 8, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/gch2.201900080
Keywords
candle soot; energy harvesting; solar power; thermoelectric power
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This article reports the thermoelectric-based solar energy harvesting. The effect of candle soot (CS) coating on solar energy harvesting potential of thermoelectric modules is studied. To compare the performance, uncoated/coated modules are exposed to solar radiations (through Fresnel lens) and the other side is kept at lower temperature using continuous water flow. Substantial enhancements in electrical outputs are observed due to CS coating on the upper surface of the thermoelectric module. The open-circuit voltage and short-circuit current across coated module improve more than six times in comparison to the uncoated module with maximum voltage and current reaching up to 1.5 V and 14 mA. Similarly, the generator can deliver a maximum power of 10 mW across a resistance of 50 omega. Results indicate that the CS coating is an effective technique to improve the performance of thermoelectric materials for running sensors and other low-power electronic devices.
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