Effect of Longitudinal Vortex Generator Location on Thermoelectric-Hydraulic Performance of a Single-Stage Integrated Thermoelectric Power Generator
| Autor: | Samruddhi Deshpande, Bharath Viswanath Ravi, Jaideep Pandit, Srinath V. Ekkad, Scott T. Huxtable, Ting Ma |
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| Rok vydání: | 2018 |
| Předmět: |
Fluid Flow and Transfer Processes
Pressure drop Materials science 060102 archaeology 020209 energy General Engineering Reynolds number 06 humanities and the arts 02 engineering and technology Mechanics Vortex generator Condensed Matter Physics Vortex symbols.namesake Thermoelectric generator Heat transfer Thermoelectric effect Heat exchanger 0202 electrical engineering electronic engineering information engineering symbols 0601 history and archaeology General Materials Science |
| Zdroj: | Journal of Thermal Science and Engineering Applications. 10 |
| ISSN: | 1948-5093 1948-5085 |
| DOI: | 10.1115/1.4040033 |
| Popis: | Vortex generators have been widely used to enhance heat transfer in various heat exchangers. Out of the two types of vortex generators: Transverse vortex generators (TVGs) and longitudinal vortex generators (LVGs), LVGs have been found to show better heat transfer performance. Past studies have shown that the implementation of these LVGs can be used to improve heat transfer in thermoelectric generator systems. Here a built in module in COMSOL Multiphysics® was used to study the influence of the location of LVGs in the channel on the comprehensive performance of an integrated thermoelectric device (ITED). The physical model under consideration consists of a copper interconnector sandwiched between p-type and n-type semiconductors and a flow channel for hot fluid in the center of the interconnector. Four pairs of, LVGs are mounted symmetrically on the top and bottom surfaces of the flow channel. Thus, using numerical methods, the thermo-electric-hydraulic performance of the ITED with a single module is examined. By fixing the material size D, the fluid inlet temperature Tin, and attack angle β; the effects of the location of LVGs and Reynolds number were investigated on the heat transfer performance, power output, pressure drop and thermal conversion efficiency. The location of LVGs did not have significant effect on the performance of TEGs in the given model. However, the performance parameters show a considerable change with Reynold’s number and best performance is obtained at Reynold number of Re = 500.Copyright © 2015 by ASME |
| Databáze: | OpenAIRE |
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