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Estefanía Hervás Blasco

Estefanía Hervás Blasco

Universitat Politècnica de València, Spain

Title: Development of a new powertrain concept based on the integration of electric generation, energy recovery and storage


Estefanía Hervás Blasco is an Engineer from the Politechnical University of Valencia (UPV). She is a PhD student (on optimization of thermal systems consumption) at the Energy Engineering Institute within a team composed by Emilio Navarro Peris (he completed his PhD in 2006, is an assistant professor at the UPV and a experienced researcher who has a great number of publications) and José Miguel Corberán (he completed his PhD in 1984, a professor at the UPV, has published several books, has a great number of contributions to the science, is the main researcher for more than 25 years, the director of the Institute and, among others, the spanish represant of different International Institutions).


The present concern in the reduction of C02 emissions occasioned by heavy duty trucks is leading to a technological evolution in powertrain electrification as well as to the use of cleaner fuels. Towards this objective, the EU has funded in the frame of the 7th framework program the project GASTone. This is a collaborative project between several private and public companies and institutions: CRF, FTP, Continental, GENTHERM, MAGNA and U. Politécnica de Valencia, targeting the development of a new powertrain concept based on the integration of electric generation, energy recovery and storage with engine system and control strategies The main features of this beltless engine concept are: - The energy recovery from the exhaust gases heat with a cascade approach thanks to the adoption of an advanced thermoelectric generator and a turbo-generator. - The integration of a smart kinetic energy recovery system to substitute the alternator and generate electricity during decelerations. - The electrification of the main auxiliaries by using the produced electric energy. The current average performance in a Natural Engine is about 38%; with this new concept is expected to rise this number by 4% thanks to the engine improvement, by 1% due to the modification of the liquid charge air cooler, by 2% from the reduction of the belt drive and gear losses, by 1% from the system strategy and management optimization and by 7% from the exhaust heat recovery (thermo-electric generator and turbo-generator).

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