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Peltier Effect in Waste Heat Reclamation

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Conference

ASEE 2021 Gulf-Southwest Annual Conference

Location

Waco, Texas

Publication Date

March 24, 2021

Start Date

March 24, 2021

End Date

March 26, 2021

Page Count

9

Permanent URL

https://peer.asee.org/36392

Download Count

18

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Paper Authors

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David Walden

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I am David Walden. I am currently pursuing technologies that act in a way that is modular. These technologies would remove the need for high interdependence between entities such as people, states, and countries. It my vision that by implementing such technology we can allow for more people to experience greater freedom without detriment to the global environment. This is my guiding principle for the various research topics I seek to explore.

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Kenneth R. Leitch P.E. West Texas A&M University Orcid 16x16 orcid.org/0000-0003-3322-779X

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Kenneth R. Leitch holds a Ph.D. in civil engineering from New Mexico State University and M.B.A. from Colorado Christian University. He is an Associate Professor of civil engineering at West Texas A&M University in Canyon, Texas. He is a registered P.E. in Texas and Indiana and a LEED Green Associate. His primary interests are in sustainable development, construction materials, photogrammetry, structural analysis, transportation safety and structures, STEM outreach, and engineering instruction.

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Roy Jean Issa P.E. West Texas A&M University

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Dr. Issa is a professor of Mechanical Engineering at West Texas A&M University. He joined the School of Engineering, Computer Science and Mathematics in 2004. His background is in the area of thermal-fluid sciences, particularly in single and multi-phase heat transfer. He received his B.S. and M.S. degrees in Mechanical Engineering from University of Tennessee, Knoxville, and Ph.D. degree in Mechanical Engineering from University of Pittsburgh. Dr. Issa has 4 years of prior work experience in the aerospace industry and 8 years of experience in the steel rolling industry. His work experience in the aerospace industry included lift-off load studies on the shuttle system, assembly of space station Freedom, hydraulic line model developments of the thrust vector control system, and robot programming for foam and paint stripping of the SRB tunnel covers. While working in the steel industry, he conducted extensive studies on the cooling of rolls and flat products in the hot strip mill, and mill torsional vibration and torque amplification studies. He is a co-inventor on a US patent on the rolling of flat products. His academic activities focus on conducting research in areas that are important to the industry but is fundamental in nature such as using multiphase (air-mist) cooling in the quenching of metals for the steel industry, tempering of glass for the auto industry, and chilling of beef carcasses for the meat processing industry. In addition, he has conducted studies on sustainable energy systems such as wind towers for indoor cooling, green roofs, active solar distillation systems, and the incorporation of phase change materials in conventional building walls. His recent studies focused on the enhancement of the thermal transport in heat exchanger systems using nanofluids. Dr. Issa is an author and co-author of over 50 journal and conference papers in the area of heat transfer and fluid dynamics. He was selected as a Fulbright Scholar to Austria in 2016.

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Abstract

The thermoelectric generators have no moving parts, are low maintenance, long material life, and could be readily serviced. The ratio of tile area to cladding area is optimized which allows for similar heat flux to the original system but some of the heat losses can be reclaimed to improve the overall efficiency of the system. Each TEG generates a marginal amount of power based on upon the convective heat forces and the kilowatt hours varies erratically based upon the convective forces. The cost of the generators is negligible at a few dollars on the low end which would be ideal for cladded surfaces. This would allow for a recapture rate of based on other documentation of around 4.6 % of the waste heat, and while the performance is not that high this is largely due to the lower price TEGS that can be purchased in bulk were used rather than high price TEGs. Given the efficiency of powerplants ranges between 30-50% then the efficiency of the whole system can be improved by around 1-2% which is approximately 300-600 Btu/Hr. Based on the outcome further investigations into this subject could prove highly valuable in the long-term prospect of energy efficiency and sustainability

Walden, D., & Leitch, K. R., & Issa, R. J. (2021, March), Peltier Effect in Waste Heat Reclamation Paper presented at ASEE 2021 Gulf-Southwest Annual Conference, Waco, Texas. https://peer.asee.org/36392

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