<html><body bgcolor="#FFFFFF"><div><div><span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.296875); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); font-size: medium; ">Then, a tall skinny, cyclone</span><span class="Apple-style-span" style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.296875); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); font-size: medium; "> </span><br> </div><div>Hi mark</div><div>I was wondering if you or some one on the list has the math for the efficiency ratios for cyclones ie. Tall skinny vrs short fat cfm, volume? Particulates?</div><div>Thanks</div><div>Henri<br>Sent from my iPhone</div><div><br>On Aug 25, 2011, at 10:14 PM, "Mark E. Ludlow" <<a href="mailto:mark@ludlow.com"><a href="mailto:mark@ludlow.com">mark@ludlow.com</a></a>> wrote:<br><br></div><blockquote type="cite">Then, a tall skinny, cyclone </blockquote><div></div></div><div><span></span></div></body></html>