Towards compliance with the prospective EURO VII NOx emissions limit using a thermoelectric aftertreatment heater

In this study, the use of a thermoelectric aftertreatment heater (TATH) to reduce NOx emissions in low demanding regimes diesel-powered Heavy-Duty vehicles (HDV) has been analysed. This system is composed by an Exhaust Gas Heater (EGH) that heats up exhaust gases engine regimes, order shorten time urea injected. Besides, TATH fed Automotive Thermoelectric Generator (ATEG) converts waste heat from into electricity, so can work energetically autonomous. Experimental results show under low-speed Euro VI certified HDV emits 5 times above limit value. Results demonstrate reduces 97.2% long-haul MAN TGX 18.480 Efficient Line 2 and may help fulfil prospective EURO VII regulation. Apart that, it also demonstrated ATEG produce energy required EGH mission profile. However, added weight back pressure caused expected increase fuel consumption vehicle 0.35%.