Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/346816
Type: Artigo
Title: Study on exergy recovery in hybrid vehicles via wastegate losses
Author: Lİma, Alessandro José Truta Beserra de
Rufino, Caio Henrİque
Ferreİra, Janito Vaqueİro
Gallo, Waldyr Luİz Ribeİro
Abstract: Vehicle hybridization is considered a promising alternative for pollutant emission mitigation. This type of vehicle combines the use of an internal combustion engine and electrical power. One of the most common layout is the series-parallel hybrid vehicle, which consists of the use of one combustion engine as the main source of power in parallel to electrical sources. Besides propelling the vehicle, the combustion engine has the task of supplying energy to the electrical system. In parallel to hybridization, other technologies, such as the downsizing of an engine via turbocharging, have been adopted to increase thermal efficiency of internal combustion engines. The purpose of this work is to analyse the viability of combining the aforementioned technologies. To improve energy utilisation, part of the energy of the exhaust system is recovered from a free turbine, being directed to the vehicle's battery. To evaluate the viability of the proposal, experimental data was obtained from a turbocharged spark-ignition engine. Efficiency indexes were calculated based on exergetic analyses for the turbo-compressor set and the entire engine system. Thereafter, a virtual free turbine was virtually added, assuming that it operates exactly as the main turbine and the efficiency indexes were re-calculated as also absolute values of the recovered energy. The comparison of results indicates the viability of implementing this proposal
Subject: Veículos elétricos híbridos
Country: Turquia
Editor: International Centre for Applied Thermodynamics
Rights: Fechado
Identifier DOI: 10.5541/ijot.633112
Address: https://dergipark.org.tr/en/pub/ijot/issue/52765/633112
Date Issue: 2020
Appears in Collections:FEM - Artigos e Outros Documentos

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