Characteristics of Pressure and Liquid Holdup Overshoot Following a Sudden Increase of Gas Flow

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F99%3A0003358" target="_blank" >RIV/60461373:22340/99:0003358 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Characteristics of Pressure and Liquid Holdup Overshoot Following a Sudden Increase of Gas Flow

Original language description

The paper presents results of an experimental study of the hydrodynamics of counter-current packed bed column undergoing a step change of gas phase velocity. The existence of the earlier observed pressure overshoots has been confirmed. The oversh have been observed also on corresponding transient profiles of liquid holdup. The overshoots have appeared for step changes of gas rate from zero as well as non-zero gas rate if the change brings the system close to the flooding. No flooding, temporarily, has been proven to appear and be thus the cause of the overshoots. The magnitude and time of appearance of the overshoots have been evaluated from experimental transient date using a simple two-para obtained results indicates that the probable cause for the overshoot is the extra energy dissipation, needed for the flow redistribution near the gas inlet end of the bed, after the imposed gas velocity chan

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CI - Industrial chemistry and chemical engineering

OECD FORD branch

—

Project

—

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

1999

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Chemical and Biochemical Engineering Quarterly

ISSN

03529568

e-ISSN

—

Volume of the periodical

13

Issue of the periodical within the volume

2

Country of publishing house

HR - CROATIA

Number of pages

7

Pages from-to

—

UT code for WoS article

—

EID of the result in the Scopus database

—