article thumbnail

Study finds engines emit exhaust nanoparticles even when not fueled during engine braking

Green Car Congress

Exhaust particle size distributions measured by ELPI (color map) and particle concentration measured by CPC (white line) during individual engine braking conditions (speed change from 32 km/h to 0 km/h). The exhaust sample was taken from the exhaust manifold. The exhaust sample was taken from the exhaust manifold.

Exhaust 319
article thumbnail

EU investing >€3M in research into ultra-efficient aero engines; ULTIMATE project

Green Car Congress

Core exhaust loss. The “Core exhaust” loss is primarily due to thermal energy lost to the surroundings, although some excess kinetic energy and fluid friction associated pressure losses contribute as well. Core exhaust loss. Bypass flow loss.

Engine 150
article thumbnail

EEA Report: Trends in European Transport Are Heading in the Wrong Direction

Green Car Congress

Despite a reduction in road transport exhaust emissions across Europe, there have been no significant improvements in concentrations of fine particulates (PM 10 ) and nitrogen oxides (NO x ), which have a major impact on air quality and human health. Transport at a crossroads. EEA Report No 3/2009 ).

article thumbnail

DNV GL paper suggests near-term success for LNG in shipping; alternative fuel mix to diversify over time

Green Car Congress

In this case GHG and other pollutants will still be emitted, but they can be reduced through exhaust gas cleaning systems or carbon capture and storage. For example, the availability of land to grow biofuels is a significant barrier to its widespread use, with an area the size of Greece required to produce 50 million tonnes of biodiesel.