Publications by authors named "Rabeya Bosry Smriti"
Thermoelectric Energy Harvesting for Exhaust Waste Heat Recovery: A System Design.
ACS Appl Mater Interfaces
January 2025
Thermal energy harvesting for high-speed moving objects is particularly promising in providing an efficient and sustainable energy source to enhance operational capabilities and endurance. Thermoelectric (TE) technology, by exploiting temperature gradients between a heat source and ambient temperature, can provide a continuous power supply to such systems, reducing the reliance on conventional batteries and extending operation times. However, the integrated thermoelectric generator (TEG) system design research is far behind materials development.
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- AgSbTe is a promising p-type thermoelectric material that has seen improvements focused on reducing lattice thermal conductivity, but its low power factor limits device performance.
- Recent research shows that doping AgSbTe with Sn creates a new impurity band, enhancing electrical properties and achieving a record-high power factor of 27 μWcmK and a peak thermoelectric figure of merit zT of 2.5 at 673 K.
- The improved performance is due to increased hole concentration and reduced bipolar conductivity, resulting in an efficient thermoelectric device with energy conversion efficiencies of 12.1% and a power density of 1.13 Wcm.
The aim of the present study is to explore heat transfer and pressure drop characteristics in a pulsating channel flow due to wall-mounted flexible flow modulators (FFM). Cold air in pulsating fashion is forced to enter through the channel having isothermally heated top and bottom walls with one/multiple FFMs mounted on them. The dynamic conditions of pulsating inflow are characterized by Reynolds number, non-dimensional pulsation frequency and amplitude.
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