POSSIBILITIES FOR INTENSIFYING THE HEAT EXCHANGE IN “DRY” EVAPORATORS THROUGH INFLUENCE ON THE DYNAMICS OF TWO PHASE FLOW

Heat Transfer ◽  
1971 ◽  
pp. 433-441
Author(s):  
Z.R. HUELLE
2017 ◽  
Vol 27 (12) ◽  
pp. 2799-2815
Author(s):  
Ewa Kolczyk ◽  
Zdzisław Miczkowski ◽  
Józef Czernecki

Purpose The purpose of this study is application of a numerical simulation for determination of the influence of geometric parameters of a furnace and hydrodynamics of the gas introduced by a vertical submerged lance on the process of feed mixing and temperature distribution. Design/methodology/approach A numerical simulation with Phoenics software was applied for modeling of liquid phase movement and heat exchange between the gas supplied through a lance and the slag feed in a top submerged lance (TSL) furnace. The simulation of a two-phase flow of a slag–gas mixture based on the inter phase slip algorithm module was conducted. The influence of selected parameters, such as depth of lance submergence, gas flow rate and change of furnace geometry, on the phenomena of movement was studied. Findings Growth of dynamics of mixing with the depth of lance submergence and with increase of gas velocity in the lance was observed. Formation of a recirculation zone in the liquid slag was registered. Movement of the slag caused by the gas flow brought homogenization of the temperature field. Originality/value The study applied the simulation of a two-phase flow in the liquid slag–gas system in steady state, taking into account heat transfer between phases. It provides possibilities for optimization and selection of process parameters within the scope of the developed new technology using a TSL furnace.


1979 ◽  
Vol 46 (6) ◽  
pp. 485-486
Author(s):  
P. A. Ushakov ◽  
A. A. Ivashkevich

2021 ◽  
Author(s):  
V. N. Gushshamova ◽  
A. P. Khomyakov ◽  
S. V. Mordanov ◽  
T. V. Khomyakova

2012 ◽  
Vol 70 (4) ◽  
pp. 773-786
Author(s):  
Sebastiano Giambò ◽  
Giuseppa Muscianisi

1981 ◽  
Vol 40 (5) ◽  
pp. 468-472
Author(s):  
A. A. Khalatov ◽  
A. L. Satanovskii ◽  
R. Sh. Vainberg

1997 ◽  
Vol 119 (4) ◽  
pp. 893-897 ◽  
Author(s):  
J. De Ruyck ◽  
S. Bram ◽  
G. Allard

A new evaporative cycle layout is disclosed that is shown to have a performance similar to the HAT cycle, but where the saturation tower has been eliminated. This new cycle is a result of a combined exergetic and composite curve analysis discussed in a previous paper, assuming one intercooler and no reheat (De Ruyck et al., 1995). The new cycle uses two-phase flow heat exchange in the misty regime, which is a well-known process. Existing aeroderivative gas turbine equipment can be adapted for application of this cycle, which therefore needs a minimum of development.


Sign in / Sign up

Export Citation Format

Share Document