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

Ximinis, Joan; Massaguer, A.; Massaguer, E.

doi:10.1016/j.csite.2022.102182

Cited by 8 publications

(1 citation statement)

References 30 publications

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“…After a cold start of the engine [107], using only waste heat recovery rather than electricity from a generator and battery for extended periods of low rotation operation can boost the SCR purification efficiency to 55%, significantly lowering the NOx emission level without increasing fuel consumption. According to the team's most recent paper [108], the thermoelectric recovery unit causes a similar 0.35% increase in fuel consumption because of the vehicle's additional weight and the generation of some exhaust pressure. However, it is still far less than the 4-6% loss in fuel consumption needed to power an electric heater using a generator.…”

Section: Electric Power Sourcementioning

confidence: 99%

Applications of Electric Heating Technology in Vehicle Exhaust Pollution Control

Li,

Xiao,

Wang

et al. 2024

Processes

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Motor vehicle exhaust is an important cause of atmospheric pollution. Nowadays, mainstream exhaust emission aftertreatment technologies, such as TWC, DOC, SCR, and DPF, usually require sufficient temperature to perform good purification or maintain normal working conditions. Compared with exhaust gas heating technologies such as engine enrichment and fuel injection, electric heating technology can quickly increase the temperature of exhaust gas aftertreatment devices without adverse effects on engine operating conditions. This article introduces the research and progress of electric heating technology combined with traditional aftertreatment devices on major types of vehicles, such as gasoline vehicles, diesel vehicles, motorcycles, and hybrid vehicles, to improve exhaust purification efficiency and its accompanying fuel consumption impact. In addition, the common structure and characteristics of electric heaters, as well as the current status and development trend of electric heating unit technologies such as electric heating power supply are introduced.

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Section: Electric Power Sourcementioning

confidence: 99%