Home > Search Results: keywords:"counter-current bed"
Search:
Search Tips :: Advanced Search
Search collections:
Sort by: Display results: Output format:
National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Experimentální sledování a model popisující jev překmitu v protiproudé náplňové koloně v okolí bodu zahlcení
 Svoboda, Petr ; Staněk, Vladimír
This paper present the mathematical model of gas-liquid counter-current packed bed column and solves it numerically for conditions of high gas-liquid flow interactions. The results of the solutions exhibiting the overshoots of both liquid holdup, pressure profile and pressure drop are then presented. Some of the results are the compared with the experimentally observed overshoots.
Detailed record
Kvalitativní analýza a řízení v závislosti na vstupních úodmínkách modelu protiproudé plněné kolony
 Akramov, T. A. ; Jiřičný, Vladimír ; Staněk, Vladimír
In recent papers a mathematical model of the transients of the hydrodynamic of counter-current column was formulated. It was used for describing the overshoot phenomenon on the transient profiles of liquid holdup. These overshoots were observed experimentally when the bed was exposed to a sudden increase of either gas or liquid inlet velocity. Another condition for the appearance of the overshoots was that the step change in inlet velocity brings the system in proximity of the flooding point. The formulated model could under some conditions give a good description of the time behavior of the mean liquid holdup. In particular this model is capable of predicting and describing the conditions of the overshoot phenomenon after an imposed change of inlet velocity of liquid or gas. The problem now is to find out the response of the system periodical step changes in inlets velocity of gas or liquid. .
Detailed record

Interested in being notified about new results for this query?
Subscribe to the RSS feed.
Digital Repository :: Search :: Submit :: Personalize :: Help
Powered by Invenio v1.1.2
Maintained by admin.invenio@techlib.cz
This site is also available in the following languages:
Česky  English