Testing of an automobile exhaust thermoelectric generator in a light truck

Thacher, Eric Forsta; Helenbrook, Brian T.; Karri, Madhav A.; Richter, Clayton

doi:10.1243/09544070jauto51

Cited by 163 publications

(69 citation statements)

References 2 publications

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“…1e2% can be recovered today e.g. through thermal electric generators (Thacher et al, 2007), fuel economy improvements of up to 5% are projected (Friedrich et al, 2007).…”

Section: Improving Drivetrain Efficiencymentioning

confidence: 99%

Transport impacts on atmosphere and climate: Land transport

Uherek¹,

Halenka²,

Borken‐Kleefeld³

et al. 2010

Atmospheric Environment

307

151

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a b s t r a c tEmissions from land transport, and from road transport in particular, have significant impacts on the atmosphere and on climate change. This assessment gives an overview of past, present and future emissions from land transport, of their impacts on the atmospheric composition and air quality, on human health and climate change and on options for mitigation.In the past vehicle exhaust emission control has successfully reduced emissions of nitrogen oxides, carbon monoxide, volatile organic compounds and particulate matter. This contributed to improved air quality and reduced health impacts in industrialised countries. In developing countries however, pollutant emissions have been growing strongly, adversely affecting many populations. In addition, ozone and particulate matter change the radiative balance and hence contribute to global warming on shorter time scales. Latest knowledge on the magnitude of land transport's impact on global warming is reviewed here.In the future, road transport's emissions of these pollutants are expected to stagnate and then decrease globally. This will then help to improve the air quality notably in developing countries. On the contrary, emissions of carbon dioxide and of halocarbons from mobile air conditioners have been globally increasing and are further expected to grow. Consequently, road transport's impact on climate is gaining in importance. The expected efficiency improvements of vehicles and the introduction of biofuels will not be sufficient to offset the expected strong growth in both, passenger and freight transportation. Technical measures could offer a significant reduction potential, but strong interventions would be needed as markets do not initiate the necessary changes. Further reductions would need a resolute expansion of low-carbon fuels, a tripling of vehicle fuel efficiency and a stagnation in absolute transport volumes. Land transport will remain a key sector in climate change mitigation during the next decades.

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“…1e2% can be recovered today e.g. through thermal electric generators (Thacher et al, 2007), fuel economy improvements of up to 5% are projected (Friedrich et al, 2007).…”

Section: Improving Drivetrain Efficiencymentioning

confidence: 99%

Transport impacts on atmosphere and climate: Land transport

Uherek¹,

Halenka²,

Borken‐Kleefeld³

et al. 2010

Atmospheric Environment

307

151

View full text Add to dashboard Cite

show abstract

“…1,2) A number of studies have addressed the TEG systems as a thermal energy recovery method in automobiles. [3][4][5][6] According to previous research achievements, it can be concluded that a high-efficiency heat exchanger is necessary to increase the amount of heat energy extracted from the exhaust gas. Continuous efforts have been made to maximize their efficiency, with methods mainly concentrating on changing the structure of the heat exchanger and introducing different heat transfer enhancement measures.…”

Section: Introductionmentioning

confidence: 99%

“…Continuous efforts have been made to maximize their efficiency, with methods mainly concentrating on changing the structure of the heat exchanger and introducing different heat transfer enhancement measures. Although a lot of types of heat exchanger for exhaust gas have been proposed, [7][8][9][10][11][12][13][14][15][16] little has been reported on waste heat recovery, such as radiant heat from steel products.…”

Section: Introductionmentioning

confidence: 99%

Influence of Heat Collection Plate Structure on Thermoelectric Generation Unit Performance for Radiant Waste Heat Recovery in Continuous Casting Process

Kuroki¹,

Tsutsumi²,

Murai³

et al. 2017

ISIJ Int.

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In recent years, environmental issues such as global warming and the energy resource depletion have become serious matters. Waste heat recovery can be one of the key technologies to solve these issues. Thermoelectric generator (TEG) is one of the promising technologies expected to play an important role for steel plant's waste heat recovery, particularly radiant heat from steel products which had not been used yet efficiently. Despite the improved performances of thermoelectric materials, more effort on a TEG unit is needed to maximize TEG system performance. In optimizing the TEG unit performance, the influence of the surface shape of the TEG units has been investigated. Two types of the heat collection plate have tested. The first one was with a fin structure and the second one was with plain plate structure. Based on the results of the simulation and the experiments, it can be concluded that a better performance will be achieved by the TEG unit which has plain type heat collection plate because of larger total heat flux input to TEG modules of the TEG unit with plain type heat collection plate structure compared to the fin type heat collection structure.

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“…5 Further, many research teams have successfully embedded thermoelectric generators in vehicles, which recycle the waste heat generated by the heat exchanger. 6,7 However, the low conversion efficiency of current thermoelectric power generation systems, coupled with the high cost of modules, has limited their applications. If these shortcomings are addressed, TE modules could see greater use and lead to a significant reduction in waste energy in the form of heat.…”

Section: Introductionmentioning

confidence: 99%

Interfacial reactions between PbTe-based thermoelectric materials and Cu and Ag bonding materials

Drymiotis

Liao

et al. 2015

J. Mater. Chem. C

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The development of reliable bonding materials for PbTe-based thermoelectric modules that can undergo long-term operations at high temperature is carried out. Two cost-effective materials, Cu and Ag, are isothermally hot-pressed to PbTe-based thermoelectric materials at 550 1C for 3 h under a pressure of 40 MPa by the rapid hot-pressing method. Scanning electron microscopy, electron probe micro-analysis, and X-ray diffraction analysis are employed to identify intermetallic compounds, chemical reactions, and microstructure evolution after the initial assembly and subsequent isothermal aging at 400 1C and 550 1C. We find that Cu diffuses faster than Ag in PbTe. Neither Cu nor Ag is a good bonding material because they both react vigorously with Pb 0.6 Sn 0.4 Te. In order to be able to use Cu electrodes, it would be necessary to insert a diffusion barrier to prevent Cu diffusion into PbTe.

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Testing of an automobile exhaust thermoelectric generator in a light truck

Cited by 163 publications

References 2 publications

Transport impacts on atmosphere and climate: Land transport

Transport impacts on atmosphere and climate: Land transport

Influence of Heat Collection Plate Structure on Thermoelectric Generation Unit Performance for Radiant Waste Heat Recovery in Continuous Casting Process

Interfacial reactions between PbTe-based thermoelectric materials and Cu and Ag bonding materials

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