The effect of nozzle diameter on the flow characteristics of air entrainment phenomenon in vertical plunging jets

Warjito, Budiarso, Irvanda Adam Pramono, Mario Laurensus Samosir, Dendy Adanta

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Bubble has an important role in separation processes such as desalination and flotation. The one way to produce bubble is air entrainment. Air entrainment phenomenon on vertical plunging jet has been studied with the aim to know the effect of nozzle and downcomer size on bubble penetration depth, gas entrainment rate, and bubble dispersion area. Experimental setup is in the form of water piping system consisting of pump, nozzle, downcomer, water flowmeter, air flowmeter and water pool. The visual data in the form of video and photograph taken by using digital camera and high speed camera with backlighting method. The visual data is then processed with the image processing program to obtain quantitative data. The results show that the nozzle diameter affects the air entrainment. Depth of bubble penetration, area of bubble dispersion, air entrainment rate, and liquid height entering into downcomer values are affected by the nozzle size.

Original languageEnglish
Title of host publication10th International Meeting of Advances in Thermofluids, IMAT 2018 - Smart City
Subtitle of host publicationAdvances in Thermofluid Technology in Tropical Urban Development
EditorsArdiyansyah Yatim, Nasruddin, Muhammad Arif Budiyanto, Nyayu Aisyah, Muhamad Idrus Alhamid
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735417908
DOIs
Publication statusPublished - 25 Jan 2019
Event10th International Meeting of Advances in Thermofluids - Smart City: Advances in Thermofluid Technology in Tropical Urban Development, IMAT 2018 - Kuta, Bali, Indonesia
Duration: 16 Nov 201817 Nov 2018

Publication series

NameAIP Conference Proceedings
Volume2062
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference10th International Meeting of Advances in Thermofluids - Smart City: Advances in Thermofluid Technology in Tropical Urban Development, IMAT 2018
Country/TerritoryIndonesia
CityKuta, Bali
Period16/11/1817/11/18

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