Axisymmetric laminar flow of two-phase medium inside the system of two coaxial pipes
Journal Title: Energetika - Year 2018, Vol 0, Issue 0
Abstract
The problem of the axisymmetric laminar flow of a two-phase (liquid-gas) flow inside the infinite system of coaxial tubes with a circular cross-section located vertically is considered. Analysis of the analytical solution showed that increase in velocity of the gas flow leads to the appearance of the hold-up regime (then the velocity of media at the interface is zero) and flooding regime (when volume flow of liquid is zero). It is discovered that these regimes occur at lower values of the velocity of the gas flow for the heated medium in comparison with the cold medium.
Authors and Affiliations
Igor Kuzmenko, Alexandre Gourjii
International MITHYGENE-ETSON benchmark
Lithuanian Energy Institute scientists participated in the international MITHYGENE-ETSON benchmark and provided simulations of hydrogen combustion.In the case of a severe accident in a nuclear power plant,...
ES programos „Horizontas 2020“ projekto „Energetinio efektyvumo tikslų įgyvendinimo praktinis vertinimas (EPATEE)“ tikslai ir uždaviniai
Nuo 2017 m. Lietuvos energetikos instituto (LEI) Atsinaujinančių išteklių ir efektyvios energetikos laboratorija, kartu su partneriais iš septynių Europos šalių (Prancūzijos, Austrijos, Nyderlandų, Kroatijos, Italijos,...
Appreciation of LEI researchers in NUTHOS-12 Conference
Lithuanian Energy Institute researchers working in the area of thermal-hydraulic and nuclear safety, in order to increase awareness, expand international contacts and share their knowledge, take part in different...
Advanced exergetic analysis of a heat pump providing space heating in built environment
In addition to conventional exergy-based methods, advanced exergetic analyses consider the interactions among components of the energy-conversion system and the real potential for improving each system component. The pap...
Dielectric properties of alumina ceramics for fusion applications
The insulating materials for radio frequency (RF) windows and different antenna supports for heating systems and some diagnostics are still an unresolved issue in future fusion machines such as DEMO. Alumina ceramic (Al2...