Tomsk Polytechnic University

About: Tomsk Polytechnic University is a education organization based out in Tomsk, Russia. It is known for research contribution in the topics: Combustion & Ignition system. The organization has 9190 authors who have published 13224 publications receiving 103735 citations.

Numerical simulation of ignition of particles of a coal–water fuel

Abstract: The problem of particle ignition of coal–water fuel has been solved. The simultaneous processes of water vaporization and thermal decomposition of the solid fuel are taken into account. The conditions and characteristics of particle ignition of coal–water fuel under typical furnace conditions were determined by numerical simulation. The obtained values of the ignition delay time are in good agreement with published experimental data.

A simple and effective synthesis of aryl azides via arenediazonium tosylates

Abstract: Aromatic azides are formed in high yield from arenediazonium tosylates and sodium azide in water at room temperature or from aromatic amines via diazotization in the presence of p-TsOH. Besides being experimentally simple, these methods do not require any metal catalysis and provide clean products without purification.

Superhard nanocrystalline Ti–Cu–N coatings deposited by vacuum arc evaporation of a sintered cathode

Abstract: Experimental data are presented on the structure and properties of hardening nanocrystalline copper-added titanium nitride coatings produced by plasma-assisted vacuum arc evaporation of sintered cathodes. A model of the nanostructurization of this type of coating is proposed. According to the model, the nanocrystallization in these materials is due to the added atoms, which form an amorphous sheath around a grain that restricts the grain growth.

High resolution analysis of the (111) vibrational state of SO2

Abstract: The high resolution Fourier transform spectrum of the weak ν 1 + ν 2 + ν 3 band was recorded and analyzed for the first time. 1085 transitions with values of quantum numbers J max . = 65 and K a max . = 21 were assigned to that band. The hot band ν 1 + ν 2 + ν 3 − ν 2 was also recorded and analyzed, and 1132 transitions with values of quantum numbers J max . = 77 and K a max . = 20 were assigned. On the basis of the obtained information, 780 ro-vibrational energies of the (111) upper vibrational state were determined. The derived results significantly exceed analogous results known in the literature both in number of the assigned transitions and upper energy levels, and in values of quantum numbers J max . and K a max . .