Heat Transfer Enhancement of a Modularised Thermoelectric Power Generator for Passenger Vehicles

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dc.contributor.authorLi, Bo
dc.contributor.authorKuo, Huang
dc.contributor.authorYuying, Yan
dc.contributor.authorYong, Li
dc.contributor.authorSsennoga, Twaha
dc.contributor.authorJie, Zhu
dc.date.accessioned2022-06-17T11:31:21Z
dc.date.available2022-06-17T11:31:21Z
dc.date.issued2017
dc.description.abstractTransport represents over a quarter of Europe's greenhouse gas emissions and is the leading cause of air pollution in cities. It has not seen the same gradual decline in emissions as other sectors. Recently, the thermoelectric power generation (TEG) technology emerges as an alternative solution to the emission reduction challenge in this area. In this paper, we present an innovative pathway to an improved heat supply into the concentric shape-adapted TEG modules, integrating the heat pipe technologies. It relies on a phase changing approach which enhances the heat flux through the TEG surface. In order to improve the heat transfer for higher efficiency, in our work, the heat pipes are configured in the radial direction of the exhaust streams. The analysis shows that the power output is adequate for the limited space under the chassis of the passenger car. Much effort can also be applied to obtain enhanced convective heat transfer by adjusting the heat pipes at the dual sides of the concentric TEG modules. Heat enhancement at the hot side of the TEG has an effective impact on the total power out of the TEG modules. However, such improvements can be offset by the adjustment made from the coolant side. Predictably, the whole temperature profile of TEG system is subject to the durability and operational limitations of each component. Furthermore, the results highlight the importance of heat transfer versus the TEG power generation under two possible configurations in the passenger car. The highest power output per repeat unit is achieved at 29.8 W per 0.45 Litre with a ZT value 0.87 for a Bi2Te3-based thermoelectric material in our studies. The study provides an insight into a structurally achievable heat exchanger system for other high-temperature thermoelectric materials.en_US
dc.identifier.citationLi, B., Huang, K., Yan, Y., Li, Y., Twaha, S., & Zhu, J. (2017). Heat transfer enhancement of a modularised thermoelectric power generator for passenger vehicles. Applied Energy, 205, 868-879.en_US
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0306261917311121
dc.identifier.urihttps://nru.uncst.go.ug/handle/123456789/4014
dc.language.isoenen_US
dc.publisherApplied Energyen_US
dc.subjectThermoelectric power generationen_US
dc.subjectHeat enhancementen_US
dc.subjectExhaust heat recoveryen_US
dc.subjectTemperature-dependent material propertiesen_US
dc.subjectHeat pipeen_US
dc.subjectEnergy harvesten_US
dc.titleHeat Transfer Enhancement of a Modularised Thermoelectric Power Generator for Passenger Vehiclesen_US
dc.typeArticleen_US
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