This study was to evaluate the feasibility of recycling the solids separated from swine wastewater treatment process as a fuel source for heat production and to provide a data set on the gas emissions and combustion properties. Also, in this study, the heavy metals in ash content were analyzed for its possible use as a fertilizer. Proximate analysis of the solid recovered from the swine wastewa...

To cope with the progressive tightening of the emission regulations, gasoline and diesel engines will continuously require highly improved exhaust after-treatment systems. In the case of diesel engines, the selective catalytic reduction (SCR) appears as one of the widely adopted technologies to reduce NOx (nitrogen oxides) emissions. Thereby, with the help of available heat from exhaust gas, th...

Due to the stringent legislation for emission of diesel engines and also increasing demand on fuel consumption, the importance of detailed 3D simulation of fuel injection, mixing and combustion have been increased in the recent years. In the present work, FIRE code has been used to study the detailed modeling of spray and mixture formation in a Caterpillar heavy-duty diesel engine. The paper pr...

The previously developed kinetic model for droplet heating and evaporation into a high pressure air is generalised to take into account the combined effects of inelastic collisions between molecules in the kinetic region, a nonunity evaporation coefficient and temperature gradient inside droplets. It is pointed out that for the parameters typical for Diesel engine-like conditions, the heat flux...

Selective catalytic reduction (SCR) technique has been widely used for the abatement of the nitrogen oxides (NOX) emissions from diesel engines for decades. The urea-water solution (UWS) spray over the exhaust gases of diesel engines is one of the important methods used for exhaust after-treatment systems. The urea water solution is extensively injected in the upstream of the catalyst to genera...

Bio fuel plays an important role in the energy production of the forest industry. The initial moisture of the fuel typically varies between 50 63 w-%. A multi stage drying concept has been developed for the drying of wet bio fuel. To adjust the temperature levels in the multi stage drying system there must be a simple and fast method to define the fuel initial moisture. A method to define the i...

The mode transition of evaporation for single- and multi-component hydrocarbon fuels is investigated at the molecular level. This study scrutinizes first subcritical supercritical n-hexadecane droplets liquid films by dynamics (MD) simulations. regime map obtained. Then a three-component droplet six-component studied. A critical dimensionless number τ0.9P 0.5 based on average displacement incre...

According to the Korean long-term plan for nuclear technology development, KAERI is conducting a R&D project on the partitioning and transmutation (P&T) of long-lived radionuclides. The study for the partitioning is focused on the development of pyroprocessing based on an electrorefining of actinides because it is a kind of proliferation-resistive technology, where all the transuranic metals ar...

The current socio-economic shift towards electrification of the transport sector and development hybrid thermal-electric propulsion systems provides new opportunities for ‘clean’ aviation technologies. In this work, use electrostatic fields to control location electrically charged fuel droplets is proposed as a novel technology enhance pre-evaporation liquid sprays in confined spaces. An electr...

In this work high temperature evaporation characteristics of isolated, suspended, ≈500 µm size droplets heavy fuel oil/1-pentanol blends are experimentally studied. Flame-like ambient conditions reproduced by developing a new suspended droplet facility such that the influence major external effects is minimum.