In this study, the multiphase temperature distributions and volume fractions through wet exhaust system were investigated as 3D by using comprehensive numerical model in a yacht diesel engine. For purpose, Volume of Fluid was selected model. Fuel exhausts are generally located underwater to ensure modern appearance minimize noise. To manage water pressure, gases, cooling flow distribution, scoo...

Ecological approach to transport including the fuel which is used in combustion engines involves a necessity of alternative solution application. The study shows test result analysis amount exhaust gases affecting natural environment. tests were performed for 81W self-ignition engine with direct injection. experiment was conducted mixture containing 70% diesel oil 30% fatty acid methyl esters. ...

Several components of air pollution have been linked to asthma. In addition to the well-studied critera air pollutants, such as nitrogen dioxide, sulfur dioxide, and ozone, diesel exhaust and diesel exhaust particles (DEPs) also appear to play a role in respiratory and allergic diseases. Diesel exhaust is composed of vapors, gases, and fine particles emitted by diesel-fueled compression-ignitio...

As a lunar lander approaches the surface, the impinging exhaust gases entrain regolith into a high velocity spray. This two-phase spray can be damaging to nearby structures, such as a lunar outpost. One way of mitigating this damage is to use a berm or fence to shield nearby structures from the dust spray. In this work, we use a coupled continuum – DSMC (direct simulation Monte Carlo) solver to...

The purpose of the present study was to design and assess the efficiency of a local exhaust ventilation system used in a foundry operation to control inhalable dust and particles, microcrystal particles, and noxious gases and vapours affecting workers during the foundry process. It was designed based on recommendations from the American Conference of Governmental Industrial Hygiene. After desig...

In recent years, the automotive sector has been focused on emission reductions using hybrid and electric vehicles. This was mainly caused by political trends promoting “green energy”. However, that does not mean internal combustion engines (ICEs) should be forgotten. The ICE still potential of recovering energy from exhaust gases. One promising ways to recover is turbocharging. Over years engin...

The article presents the results of research on impact feeding marine reciprocating internal combustion engines with blends diesel fuel and n-butanol their performance parameters. study includes a plan empirical results, in which engine efficiency emissions harmful compounds exhaust gases were determined. indicates that it is resonable to use containing n-butanol. N-butanol positively affect co...

Transportation assume no liability for the contents or use thereof. The contents do not necessarily reflect the official views or policies of the State of California or the Department of Transportation. This report does not constitute a standard, specification, or regulation. Abstract The effects of ring injectors on the performance of a selective catalytic reduction (SCR) system have been inve...

Ammonia emissions were measured for six months at a modern 250,000-hen high-rise egg laying house using the chemiluminescence method along with multi-point extractive gas sampling. The ammonia analyzer was sequenced through twelve sampling locations including nine exhaust fans every two hours and calibrated at least weekly with certified calibration gases. Fan operation was monitored along with...