A very cold start to 2025 and the growing power demands of data centres and cryptocurrencies saw US emissions of ...

The in-line hydrocarbon (HC) adsorber is a passive after-treatment technology to address cold-start hydrocarbons in automotive engine exhaust gas. A major technical challenge of the in-line HC ...

This is a preview. Log in through your library . Abstract A completely passive cold-start emissions control system, without any secondary air source, was developed to reduce cold start hydrocarbon (HC ...

The results show that cold starts are challenging, especially for diesel-powered vehicles under cold winter conditions. During the measurement campaign conducted in Finland, outdoor temperatures ...

The researchers focused on vehicle fuel consumption and emissions under cold winter conditions. Of particular interest were cold start emissions and their relation to preheating. The results show that ...