Quantitative observation of co-current stratified two-phase flow in a horizontal rectangular channel
The main objective of this study is to investigate experimentally the two-phase flow characteristics in terms of the direct contact condensation of a steam–water stratified flow in a horizontal rectangular channel. Experiments were performed for both air–water and steam–water flows with a co-current...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2015-04-01
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| Series: | Nuclear Engineering and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1738573315000133 |
| _version_ | 1819236276017037312 |
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| author | Seungtae Lee Dong-Jin Euh Seok Kim Chul-Hwa Song |
| author_facet | Seungtae Lee Dong-Jin Euh Seok Kim Chul-Hwa Song |
| author_sort | Seungtae Lee |
| collection | DOAJ |
| description | The main objective of this study is to investigate experimentally the two-phase flow characteristics in terms of the direct contact condensation of a steam–water stratified flow in a horizontal rectangular channel.
Experiments were performed for both air–water and steam–water flows with a co-current flow configuration. This work presents the local temperature and velocity distributions in a water layer as well as the interfacial characteristics of both condensing and noncondensing fluid flows.
The gas superficial velocity varied from 1.2 m/s to 2.0 m/s for air and from 1.2 m/s to 2.8 m/s for steam under a fixed inlet water superficial velocity of 0.025 m/s. Some advanced measurement methods have been applied to measure the local characteristics of the water layer thickness, temperature, and velocity fields in a horizontal stratified flow. The instantaneous velocity and temperature fields inside the water layer were measured using laser-induced fluorescence and particle image velocimetry, respectively. In addition, the water layer thickness was measured through an ultrasonic method. |
| first_indexed | 2024-12-23T13:01:51Z |
| format | Article |
| id | doaj.art-3f5874b47421477b9282955912840dbe |
| institution | Directory Open Access Journal |
| issn | 1738-5733 |
| language | English |
| last_indexed | 2024-12-23T13:01:51Z |
| publishDate | 2015-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Engineering and Technology |
| spelling | doaj.art-3f5874b47421477b9282955912840dbe2022-12-21T17:45:59ZengElsevierNuclear Engineering and Technology1738-57332015-04-0147326728310.1016/j.net.2014.11.007Quantitative observation of co-current stratified two-phase flow in a horizontal rectangular channelSeungtae Lee0Dong-Jin Euh1Seok Kim2Chul-Hwa Song3Department of Advanced Nuclear System Engineering, Korea University of Science & Technology (KUST), Gajungro 217, Yuseong-Gu, Daejeon, 305-350, Republic of KoreaDepartment of Advanced Nuclear System Engineering, Korea University of Science & Technology (KUST), Gajungro 217, Yuseong-Gu, Daejeon, 305-350, Republic of KoreaThermal Hydraulics Safety Research Division, Korea Atomic Energy Research Institute (KAERI), Daedeok-Daero 989-111, Yuseong-Gu, Daejeon, 305-353, Republic of KoreaDepartment of Advanced Nuclear System Engineering, Korea University of Science & Technology (KUST), Gajungro 217, Yuseong-Gu, Daejeon, 305-350, Republic of KoreaThe main objective of this study is to investigate experimentally the two-phase flow characteristics in terms of the direct contact condensation of a steam–water stratified flow in a horizontal rectangular channel. Experiments were performed for both air–water and steam–water flows with a co-current flow configuration. This work presents the local temperature and velocity distributions in a water layer as well as the interfacial characteristics of both condensing and noncondensing fluid flows. The gas superficial velocity varied from 1.2 m/s to 2.0 m/s for air and from 1.2 m/s to 2.8 m/s for steam under a fixed inlet water superficial velocity of 0.025 m/s. Some advanced measurement methods have been applied to measure the local characteristics of the water layer thickness, temperature, and velocity fields in a horizontal stratified flow. The instantaneous velocity and temperature fields inside the water layer were measured using laser-induced fluorescence and particle image velocimetry, respectively. In addition, the water layer thickness was measured through an ultrasonic method.http://www.sciencedirect.com/science/article/pii/S1738573315000133Direct-Contact CondensationFlow VisualizationHorizontal Stratified FlowLaser Induced FluorescenceParticle Image VelocimetryUltrasonic |
| spellingShingle | Seungtae Lee Dong-Jin Euh Seok Kim Chul-Hwa Song Quantitative observation of co-current stratified two-phase flow in a horizontal rectangular channel Nuclear Engineering and Technology Direct-Contact Condensation Flow Visualization Horizontal Stratified Flow Laser Induced Fluorescence Particle Image Velocimetry Ultrasonic |
| title | Quantitative observation of co-current stratified two-phase flow in a horizontal rectangular channel |
| title_full | Quantitative observation of co-current stratified two-phase flow in a horizontal rectangular channel |
| title_fullStr | Quantitative observation of co-current stratified two-phase flow in a horizontal rectangular channel |
| title_full_unstemmed | Quantitative observation of co-current stratified two-phase flow in a horizontal rectangular channel |
| title_short | Quantitative observation of co-current stratified two-phase flow in a horizontal rectangular channel |
| title_sort | quantitative observation of co current stratified two phase flow in a horizontal rectangular channel |
| topic | Direct-Contact Condensation Flow Visualization Horizontal Stratified Flow Laser Induced Fluorescence Particle Image Velocimetry Ultrasonic |
| url | http://www.sciencedirect.com/science/article/pii/S1738573315000133 |
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