A Hydrodynamic Study of Cylindrical Metal Foam Packings: Residence Time Distribution and Two Phase Pressure Drop.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F17%3A00504617" target="_blank" >RIV/67985858:_____/17:00504617 - isvavai.cz</a>

Výsledek na webu

<a href="http://hdl.handle.net/11104/0296203" target="_blank" >http://hdl.handle.net/11104/0296203</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cep.2017.02.010" target="_blank" >10.1016/j.cep.2017.02.010</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A Hydrodynamic Study of Cylindrical Metal Foam Packings: Residence Time Distribution and Two Phase Pressure Drop.

Popis výsledku v původním jazyce

The present study deals with hydrodynamic characterization of a cylindrical metal foam packings in terms of wetting efficiency, residence time distribution and pressure drop. It was shown that the operation of foam packings in liquid downward flow does not lead to an optimal wetting efficiency according to very high void volume and is very sensitive to the wall issues i.e. fabrication tolerances in the range of 100 mu m, Therefore, the study was performed for an upward flow operation mode. The RTD measurements in liquid upward flow and gas/liquid co-current upward flow revealed that the axial backmixing in the foam packing was less than in a vertical pipe with the same diameter. Furthermore, it was shown that the two phase pressure drop for 30 PPI and 45 PPI pore densities were below 250 Pa m(-1) and 350 Pa m(-1) respectively. The energy dissipation of 30 and 45 PPI foam packings were below 1 W m(-3) indicating a very energy efficient type of packing.

Název v anglickém jazyce

A Hydrodynamic Study of Cylindrical Metal Foam Packings: Residence Time Distribution and Two Phase Pressure Drop.

Popis výsledku anglicky

The present study deals with hydrodynamic characterization of a cylindrical metal foam packings in terms of wetting efficiency, residence time distribution and pressure drop. It was shown that the operation of foam packings in liquid downward flow does not lead to an optimal wetting efficiency according to very high void volume and is very sensitive to the wall issues i.e. fabrication tolerances in the range of 100 mu m, Therefore, the study was performed for an upward flow operation mode. The RTD measurements in liquid upward flow and gas/liquid co-current upward flow revealed that the axial backmixing in the foam packing was less than in a vertical pipe with the same diameter. Furthermore, it was shown that the two phase pressure drop for 30 PPI and 45 PPI pore densities were below 250 Pa m(-1) and 350 Pa m(-1) respectively. The energy dissipation of 30 and 45 PPI foam packings were below 1 W m(-3) indicating a very energy efficient type of packing.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20402 - Chemical process engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Chemical Engineering and Processing: Process Intensification

ISSN

0255-2701

e-ISSN

—

Svazek periodika

115

Číslo periodika v rámci svazku

MAY 17

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

10

Strana od-do

1-10

Kód UT WoS článku

000399850500001

EID výsledku v databázi Scopus

2-s2.0-85014082459