English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

CO 2  emission control is of great urgency, and the decrease of heavy-duty diesel engines’ CO 2  emission is one of the significant methods to reduce CO 2  emission. This paper uses a full-flow constantvolume dilution sampling system to experiment on the China VI heavy-duty diesel engine in order to measure CO 2  emissions under WHTC and WHSC cycles and different loads, with studying the instantaneous emissions characteristics of CO 2 , post-processing effects on CO 2  emissions, influence factors of CO 2  emissions. The study found that the CO 2  emissions before the post-treatment of the WHSC cycle are 37% higher than that of the WHTC cycle, while emissions of CO 2  are 3.45% higher than that before post-treatment. Simultaneously, cold start increases the CO 2  emissions of the heavy-duty diesel engines by more than 1%. Post-treatment still increases the CO 2  emissions of heavy-duty diesel engines by 3.5%. In addition, CO 2  emissions have different trends with power at different speeds. CO 2  emissions get an incremental within 600rpm and 900rpm, which gradually becomes slower until it reaches the peak, as engine power increases; the CO 2  emissions initially increase, followed by a decrease, and then continue to increase within 1000rpm and 1400rpm; the CO 2  emissions are almost not affected by the speed within 1500rpm and 1900rpm.

Study on CO2 Emission Characteristics of China VI Heavy Duty Diesel Engine