The Ship uses the MTU 16V956 TB 92 propulsion engine with a piston-type Mexican Hat combustion chamber. In general, crown is used on machines large torque. Besides that, shape in chamber also very influential formation of mixture fuel and air before process occurs. So it necessary to know about spray pattern biodiesel enviromental things (castor, coconut, cooking oil/MGB) this study, using Hat-...

Freeze drying was compared with spray regarding feasibility to process wild thyme drugs in order obtain dry formulations at laboratory scale starting from liquid extracts produced by different extraction methods: maceration and heat-, ultrasound-, microwave-assisted extractions. Higher total powder yield (based on the weight prior extraction) achieved freeze than lower loss of polyphenol conten...

A detailed chemistry-based CFD model was developed to simulate the diesel spray combustion and emission process. A reaction mechanism of n-heptane is coupled with a reduced NOx mechanism to simulate diesel fuel oxidation and NOx formation. The soot emission process is simulated by a phenomenological soot model that uses a competing formation and oxidation rate formulation. The model is applied ...

Cryptococcus is an emerging global health threat that is annually responsible for over 1,000,000 infections and one third of all AIDS patient deaths. There is an ongoing outbreak of cryptococcosis in the western United States and Canada. Cryptococcosis is a disease resulting from the inhalation of the infectious propagules from the environment. The current and most frequently used animal infect...

The performances of four different designs for a pilot-scale spray dryer have been evaluated and compared based on experimentally measured particle residence time distributions (RTD), recovery rates physical properties spray-dried fresh skim milk. RTDs using dye pulse injection method, the measurements fitted to models continuous stirred-tank reactors in series (CSTR-TIS) quantitative performan...

The operating conditions of injectors in spark ignition engines with direct fuel injection make them susceptible to coking, which leads a reduced quality atomization. This can be observed by drop performance and an increase exhaust emissions, especially particulate matter. One effective method reducing injector coking is using detergentdispersing gasoline additives. article describes the effect...

This paper presents the results of numerical simulations for developed and discussed conical two-phase atomizers with swirl flow, differing in ratio height chamber to its diameter. Experiments were carried out SAN-1 HS/DS = 1 SAN-2 4 atomizers. The study was conducted over a range Reynolds number liquid ReL (1400; 5650) gas ReG (2970; 9900). Numerical calculations performed use computational fl...

Abstract The pollutant emissions of aircraft engines are strongly affected by the fuel injection into combustion chamber. Hence, precise description spray is required in order to predict these more reliably. characteristics a determined during atomization process, especially primary breakup vicinity atomizer nozzle. Currently, Euler-Lagrangian approaches used droplet trajectories combustor simu...

The features of the formation an intermetallic Ni 3 Al coating by cold spraying a Ni-Al powder mixture mechanically processed in planetary mill and prepared V-shaped mixer are presented. It is shown that deposition efficiency 1.5 times higher when coatings obtained from treated components. Subsequent high-temperature treatment furnace chamber creates condition for compound system various stoich...