Increasing energy efficiency in vehicles by harvesting wasted engine heat

Emrah Celik, Mutabe Aljaghtham

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Nearly 75% of energy produced by fuel is eventually rejected to the environment and ultimately goes unused in terms of waste heat in motor vehicles. A promising method of reclaiming energy waste is to use thermoelectric (TE) energy harvesters which are multi-material solid-state devices that convert a thermal gradient directly into electric potential. In current automotive applications, waste heat recovery systems using TE are only limited to integration on exhaust pipes to convert hot exhaust gases into electricity. In this study, we explored the use of TE materials in the shape of a car oil pan to utilize the temperature difference of hot engine oil and cool outside air and convert this temperature gradient into electricity. In this study, we performed finite element simulations to optimize the geometry and the quantity of thermoelectric modules. This optimization was performed to achieve maximum thermoelectric power under the constraints of manufacturability. Using these optimum design parameters, we determined that 2.3 kW output power can be recovered from the flat plate oil pan and 2.6 kW from the oil pan with a single step due to the enhanced surface area. These power amounts were found to be higher than those previously obtained from thermoelectric systems integrated to exhaust pipes.

Original languageEnglish (US)
Title of host publicationEnergy
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791852088
DOIs
StatePublished - Jan 1 2018
EventASME 2018 International Mechanical Engineering Congress and Exposition, IMECE 2018 - Pittsburgh, United States
Duration: Nov 9 2018Nov 15 2018

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Volume6B-2018

Conference

ConferenceASME 2018 International Mechanical Engineering Congress and Exposition, IMECE 2018
CountryUnited States
CityPittsburgh
Period11/9/1811/15/18

Fingerprint

Heat engines
Energy efficiency
Thermal gradients
Electricity
Pipe
Solid state devices
Harvesters
Waste heat
Thermoelectric power
Waste heat utilization
Exhaust gases
Diesel engines
Railroad cars
Geometry
Electric potential
Air
Oils
Temperature

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Celik, E., & Aljaghtham, M. (2018). Increasing energy efficiency in vehicles by harvesting wasted engine heat. In Energy (ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE); Vol. 6B-2018). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE2018-88253

Increasing energy efficiency in vehicles by harvesting wasted engine heat. / Celik, Emrah; Aljaghtham, Mutabe.

Energy. American Society of Mechanical Engineers (ASME), 2018. (ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE); Vol. 6B-2018).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Celik, E & Aljaghtham, M 2018, Increasing energy efficiency in vehicles by harvesting wasted engine heat. in Energy. ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE), vol. 6B-2018, American Society of Mechanical Engineers (ASME), ASME 2018 International Mechanical Engineering Congress and Exposition, IMECE 2018, Pittsburgh, United States, 11/9/18. https://doi.org/10.1115/IMECE2018-88253
Celik E, Aljaghtham M. Increasing energy efficiency in vehicles by harvesting wasted engine heat. In Energy. American Society of Mechanical Engineers (ASME). 2018. (ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)). https://doi.org/10.1115/IMECE2018-88253
Celik, Emrah ; Aljaghtham, Mutabe. / Increasing energy efficiency in vehicles by harvesting wasted engine heat. Energy. American Society of Mechanical Engineers (ASME), 2018. (ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)).
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