Numerical Investigation on Double Shell-Pass Shell-and-Tube Heat Exchanger with Continuous Helical Baffles

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="839468.fig.007a" src="https://static.hindawi.com/articles/jther/volume-2011/839468/figures/839468.fig.007a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>Double shell-pass STHXCH</td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="839468.fig.007b" src="https://static.hindawi.com/articles/jther/volume-2011/839468/figures/839468.fig.007b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>Single shell-pass STHXCH</td></tr></table></td></tr><tr class="fig-image" id="c"><td><img alt="839468.fig.007c" src="https://static.hindawi.com/articles/jther/volume-2011/839468/figures/839468.fig.007c.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(c) </b>STHXSG</td></tr></table></td></tr></table>

<table>Velocity distributions (<svg height="11.375" id="M50" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 45.0625 11.375" width="45.0625" 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)"><path d="M998 650l-8 -28q-71 -4 -86 -16t-22 -69l-50 -397q-3 -28 -4.5 -44t2 -29t6.5 -18.5t17 -10.5t24.5 -6.5t37.5 -3.5l-8 -28h-271l7 28q63 6 78 22t25 90l60 415h-2l-353 -552h-23l-130 536h-2l-70 -254q-44 -158 -47 -188q-5 -38 9 -51t71 -18l-6 -28h-241l8 28
q45 4 67 18.5t35 45.5q16 38 74 233l52 173q24 79 11.5 98t-89.5 26l6 28h177l136 -508l337 508h172z" id="x1D440"></path></g><g transform="matrix(.017,-0,0,-.017,22.127,11.112)"><path d="M535 323h-483v50h483v-50zM535 138h-483v50h483v-50z" id="x3D"></path></g><g transform="matrix(.017,-0,0,-.017,36.831,11.112)"><path d="M447 623l8 -12l-283 -613l-74 -10l-7 11q174 283 297 551h-216q-48 0 -62.5 -12t-33.5 -63h-29q10 60 18 148h382z" id="x37"></path></g>
</svg> kg·s<sup>−1</sup>) (unit: m·s<sup>−1</sup>).</table>

Journal of Thermodynamics

fig7

Figure 7

Figure 7: Numerical Investigation on Double Shell-Pass Shell-and-Tube Heat Exchanger with Continuous Helical Baffles 