Abstract. We studied ice-nucleating abilities of particulate emissions from a modern heavy-duty diesel engine using three different types fuel. The polydisperse particle were sampled during operation and introduced to continuous-flow diffusion chamber (CFDC) instrument at constant relative humidity RHwater=110 %, while the temperature was ramped between ?43 ?32 ?C (T scan). tested fuels EN 590 ...

Kinetic modeling of NH3 Selective Catalytic Reduction (NH3-SCR) NOx in Cu-chabazite washcoated monolithic reactors has recently become an important task for design, control and calibration heavy-duty engine aftertreatment systems. Development detailed accurate kinetic models rely on the correct simulation NO2 storage at different conditions. Here, schemes adsorption desorption were developed co...

We evaluated the chromosomal aberration (CA) frequencies in the peripheral blood lymphocytes of ten female patients, age average 43.7 +/- 12.9, with thyroid cancer (TC) who had been exposed to 100-200 mCi therapeutic doses of 131I. The blood samples were obtained before-treatment and at 2 and 24 h after-treatment. Radiation was measured in the samples by means of dysprosium-activated calcium su...

Passenger cars are the primary means of transportation in Europe. Over the past decade, a great deal of attention has therefore been paid to reducing their emissions. This has resulted in notable technical progress, leading to unprecedentedly low exhaust emissions. In the meantime, emissions from motorcycles have been ignored due to their subordinate role in traffic. Even though the motorcycle ...

In this paper we demonstrate the potential of combining electric hybridization with a dual-fuel natural gas-Diesel engine. We show that carbon dioxide emissions can be reduced to 43 gram per kilometer with a subcompact car on the New European Driving Cycle (NEDC). The vehicle is operated in charge-sustaining mode, which means that all energy is provided by the fuel. The result is obtained by ha...

A 6.2 L diesel engine that meets China VI emission standard was selected to run world harmonized transient cycle (WHTC) and California Low Load Cycle (LLC) measure the pollutants. The brake specific under two cycles were compared, nitrogen oxides (NOx) analyzed carefully. results show NOx of LLC this is about 15 times than hot WHTC, 4.7 limitation current standard. low inlet temperature selecti...

Fuel type and composition affect tailpipe emissions secondary aerosol production from mobile sources. This study assessed the influence of gasoline fuels with varying levels aromatics ethanol on primary formation a flexible fuel vehicle equipped port injection engine. The was exercised over LA92 US06 driving cycles using chassis dynamometer. Secondary potential measured fast oxidation flow reac...

Additive manufacturing (AM) can revolutionise engineering by taking advantage of unconstrained design and overcoming the limitations traditional capabilities. A promising application AM is in catalyst substrate manufacturing, aimed at enhancement catalytic efficiency reduction volume weight reactors exhaust gas aftertreatment systems. This work addresses fabrication innovative, hybrid monolithi...

Rich burn industrial natural gas engines offer best in class post catalyst emissions by using a non-selective reduction aftertreatment technology. However, they operate with reduced power density when compared to lean engines. Dedicated exhaust recirculation (EGR) offers possible pathway for rich use technology without sacrificing density. In order achieve emissions, the precious metals and was...