Published in Chemical and Petroleum Engineering
Experimental data on high-temperature vaporization of heterogeneous water drops, obtained by high-speed video recording, and Ansys Fluent software package were used to develop a predictive mathematical model of heat and mass transfer. An assessment was made of the influence of the key process parameter, namely, the temperature of a gaseous medium (...
Published in Chemical and Petroleum Engineering
12Cr18Ni10Ti steel is widely used in the production of heat exchangers that function under high temperatures in corrosive environments. The technological process involved in the production of heatexchanger tubes with tube plates from this brand of steel, which includes the use of arc welding, is greatly complicated by the need to carry out thermal ...
Published in Chemical and Petroleum Engineering
A laboratory-scale setup with a centrifugal mass-transfer apparatus intended for intensifying technological processes in a liquid–liquid system is presented and described. In the design of the apparatus, the principle of a preliminary controllable dispersion of one of the phases in a neutral medium is realized with the subsequent supply of the spra...
Published in Chemical and Petroleum Engineering
Apparatuses with a suspended transportable bed (ASTB), despite a number of important advantages over the known constructions of convective dryers, have not yet found wide application due to the limited understanding of some of the features of their operation. In this article, the results of laboratory studies of some hydrodynamic features of ASTB o...
Published in Chemical and Petroleum Engineering
Recycling to recover Xe from its mixtures is proposed because of its shortage and high price. The simplest recycling scheme involves several consumers connected to a common centralized Xe enrichment and purification complex. However, such a scheme has limited applicability because it can cover only small regions. A versatile recycling scheme is bas...
Published in Chemical and Petroleum Engineering
The experimental dependencies of the quantity of liquid in the discharge line of the compressor section on the discharge pressures of the compressor and pump sections of a piston hybrid energy-generating machine having stepped slot seal are presented and analyzed. The dependencies of the characteristics of the studied machine on the slot seal gap s...
Published in Chemical and Petroleum Engineering
Inert gases are in great demand by industry. Neon is produced as a by-product of air-separation plants in the form of a crude Ne–He mixture. Downstream Ne production technology includes several stages accomplished in separate installations. The Ne extraction coefficient and specific energy consumption per product unit were adopted as criteria for a...
Published in Chemical and Petroleum Engineering
The basic techniques of computer-aided 3D variant design of an ultrasonic device based on a proposed technique of structuro-parametric simulation of a dosing cavitation device with rectangular radiative plate are described. The proposed approach assures effective determination of the required rational dimensions of the radiative plates and ultrason...
Published in Chemical and Petroleum Engineering
The basic principles and methods of drill string vibration control are studied. The prospects of development of a semiactive vibration damping method are shown. The principle of semiactive vibration damping developed by the authors using the Matlab Simulink graphical programming environment for modeling is studied. Analytical correlations of the eq...
Published in Chemical and Petroleum Engineering
The hydrodynamic regime used in apparatuses with suspended transportable bed of granular material (ASTB) occupies an intermediate place between fluidization and pneumatic transport. To select the basic method of calculation of ASTB, it is essential to determine which apparatuses they are close to in flow structure. In this context, studies of the f...
