Journal
ADVANCED MATERIALS
Volume 34, Issue 41, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.202204508
Keywords
adjustable and precise cooling; cooling capacity; flexible thermoelectric coolers; temperature change; thermoelectric materials
Categories
Funding
- Australian Research Council
- HBIS-UQ Innovation Centre for Sustainable Steel project
- QUT Capacity Building Professor Program
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In this study, a flexible thermoelectric cooler technology is developed to achieve a temperature drop of 10 degrees C and a cooling capacity of 256 W m(-2). By utilizing innovative design and induced air vortices, this technology ensures human comfort at inconsistent ambient temperatures while also saving energy consumption.
In this study, flexible thermoelectric coolers (FTECs) are used to develop an alternative personalized cooling technology to achieve a large temperature drop of 10 degrees C and cooling capacity of 256 W m(-2). Such an excellent cooling performance is attributed to the innovative design of the quadra-layered Ag2Se/poly(3,4-ethylenedioxythiophene) polystyrene sulfonate structure in FTECs and the induced air vortices by the vortex generator attached to the hot surface of the device. The applied pulse-width modulation technique guarantees human body comfort at inconsistent ambient temperature by modulating the duty ratio of the power source, which also saves 35% of the power consumption. As a result, the as-prepared FTECs only consume 68.5 W so as to maintain a comfortable skin temperature (32 +/- 0.5 degrees C) when the ambient temperature is at 31 degrees C. This technology provides a reliable and adjustable solution for personalized cooling in environments where comfortable temperatures are exceeded.
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