Experimental Investigation of Rising Gas Bubble Characteristics from a Vertical Tube under CCFL Condition

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="785157.fig.006a" src="https://static.hindawi.com/articles/stni/volume-2012/785157/figures/785157.fig.006a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>Time variations of pressure</td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="785157.fig.006b" src="https://static.hindawi.com/articles/stni/volume-2012/785157/figures/785157.fig.006b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>Video images of bubble formation and expansion</td></tr></table></td></tr></table>

<table>Time variations of pressure at the upper entry of the tube (PT1) and bubble formation  and expansion process including waiting time (tube diameter <svg height="11.375" id="M23" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 49.512501 11.375" width="49.512501" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,11.112)"><use xlink:href="#x1D437"></use></g><g transform="matrix(.017,-0,0,-.017,18.421,11.112)"><use xlink:href="#x3D"></use></g><g transform="matrix(.017,-0,0,-.017,33.125,11.112)"><use xlink:href="#x32"></use></g><g transform="matrix(.017,-0,0,-.017,41.284,11.112)"><use xlink:href="#x30"></use></g>
</svg> mm,  <svg height="23.025" id="M24" style="vertical-align:-5.76984pt" version="1.1" viewbox="0 0 76.837502 23.025" width="76.837502" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,15.775)"><use xlink:href="#x1D457"></use></g>
<g transform="matrix(.012,-0,0,-.012,7.25,19.863)"><use xlink:href="#x1D454"></use></g><g transform="matrix(.012,-0,0,-.012,7.25,7.613)"><use xlink:href="#x2217"></use></g><g transform="matrix(.012,-0,0,-.012,14.235,7.613)"><use xlink:href="#x30"></use></g><g transform="matrix(.012,-0,0,-.012,19.946,7.613)"><use xlink:href="#x2E"></use></g><g transform="matrix(.012,-0,0,-.012,22.659,7.613)"><use xlink:href="#x35"></use></g>
<g transform="matrix(.017,-0,0,-.017,33.712,15.775)"><use xlink:href="#x3D"></use></g><g transform="matrix(.017,-0,0,-.017,48.416,15.775)"><use xlink:href="#x30"></use></g><g transform="matrix(.017,-0,0,-.017,56.576,15.775)"><use xlink:href="#x2E"></use></g><g transform="matrix(.017,-0,0,-.017,60.452,15.775)"><path d="M456 178h-96v-72q0 -51 12.5 -62.5t72.5 -16.5v-27h-256v27q65 5 78 17t13 62v72h-260v28q182 271 300 426h40v-407h96v-47zM280 225v295h-2q-107 -148 -196 -295h198z" id="x34"></path></g><g transform="matrix(.017,-0,0,-.017,68.611,15.775)"><use xlink:href="#x31"></use></g>
</svg>, indicated as (c) in Figure <a href="../fig3/">3</a>). </table>

Science and Technology of Nuclear Installations

fig6

Figure 6

Figure 6: Experimental Investigation of Rising Gas Bubble Characteristics from a Vertical Tube under CCFL Condition 