Work

Towards Compliance with the Prospective Euro Vii Nox Emissions Limit Using a Thermoelectric Aftertreatment Heater

Year: 2022

Type: article

Abstract: In this study, the use of a thermoelectric aftertreatment heater (TATH) to reduce NOx emissions in low demanding regimes of diesel-powered Heavy-Duty vehicles (HDV) has been analysed. This system is composed by an Exhaust Gas Heater (EGH) that heats up the exhaust gases at low engine regimes, to shorten the time that urea is injected. The TATH is fed by an Automotive Thermoelectric Generator (ATEG) so it can work energetically autonomous. Experimental results show that under low-speed regimes, a EURO VI certified HDV emits NOx 5 times above the EURO VI limit value. Results demonstrate that the use of a TATH reduces NOx emissions by up to 97.2%. TATH allows to a long-haul diesel-powered to fulfil the current EURO VI and even the prospective EURO VII regulation when driving at low-speed regimes. Finally, an ATEG can produce the energy required by the EGH in a long-haul mission profile.

Source: Case Studies in Thermal Engineering

DOI: 10.1016/j.csite.2022.102182

Authors: J. Ximinis, A. Massaguer, E. Massaguer

Institution: Universitat de Girona

Language: English

Topic: Engine and Fuel Emissions

Subfield: Automotive Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: gold

Estimated APC paid: $820