Матеріали конференцій
Постійне посилання колекціїhttps://dspace.nuft.edu.ua/handle/123456789/7498
Переглянути
2 результатів
Результати пошуку
Документ Energy-saving technology of mass transfer in tray columns with separate phase movement(2010) Maleta, Vladimir; Taran, Vitaly; Maleta, BogdanThe comparison of formalized models, describing the operation of mass transfer column devices allows determining the type of equipment with the lowest power consumption in processes. For tray columns, the most widespread model is the model of theoretical contact phase, offered by McCabe-Thiele [1]. This model is based on the column material balance by distributed component and can be summarized in two postulates. 1. The concentration of volatile component in the contact phase is constant. 2. Vapor removing from the phase is in balance with liquid leaving the phase. In this case, the hydrodynamic indices of liquid and vapor flows are reduced to the perfect mixing models. The use of combinations of the other hydrodynamic models for liquid and vapor phases allowed Lewis to draw conclusions on significant enhancement of component separation. The greatest effect is achieved upon perfect displacement by vapor and liquid and single-direction movement of liquid in adjacent contact phases. All subsequent studies in this segment were aimed at industrial implementation of W.K. Lewis[2] conclusions. In particular, M.R. Cannon [3] suggested the following phase interaction mode. While the vapor passes through the column, the liquid doesn’t flow from tray to tray, and if the liquid overflows, it is not mixed on adjacent trays. The aim of the present paper is to determine the correlation between all offered models from the prospective of energy consumption during the separation process.Документ Computer modelling of movement of meat raw material on pipelines(2011) Litovchenko, Igor; Taran, Vitaly; Beseda, Sergey; Hadzhіyskі, Vіlhelm; Stefanov, StefanIn the present study we investigated methods for determining the design parameters of the pipeline for pneumatic transport with the use of modern computer systems engineering analysis. An integrated approach is proposed for the determination of geometric and strength parameters of the process equipment. Based on the previously established three-dimensional model of the pipeline is proposed by means of CAD systems to model the movement of the product at different sites. Using a simulation based on computer calculation methods, improving the accuracy of the results. Modeled dvidenie raw materials in several tribes of the radius from 80 mm to 250 mm with a certain step of the radius. As a result, modeling the values of pressure. With their help, we can determine the required compressor power.