Cavitation in De-Ionized Water

A preceding blog discussed the possible effect of too many available sites for the formation of cavitation bubbles to the point that there isn’t enough energy available to grow a significant enough portion of them to sufficient size to implode.  This leads to the question that the reverse may be possible as well.  In short, …

The Case for Micro-Bubbles in Cavitation Enhancement

In 2010, a patent was issued to Kaijo Corporation (US 7,726,325) for a method to efficiently and rapidly “degas” liquids.  In short, the process involves passing a liquid through a restriction such as the narrowing of a pipe at a sufficient velocity that rarefication downstream from the restriction (ala Bernoulli’s principle) creates negative pressure to draw …

Stable vs. Transient Cavitation

I have talked about cavitation extensively in previous blogs.  But what I have neglected to address through an omission on my part is the fact that all cavitation does not produce the effect needed to enhance cleaning – namely, the catastrophic collapse of the cavitation bubble in implosion.  Before reading further, please take a minute …

What Is A Clean Room All About?

Clean rooms are an integral and necessary part of many manufacturing operations.  The goal of a clean room is to provide an environment without airborne contaminants including common dust, aerosols, particles and other contaminants that are suspended in the air everywhere around us.  Although we are relatively unaware of these contaminants in our everyday lives, most …

The Route to Being an Engineer

As one grows older it is impossible to not occasionally reflect on life and ask, “How did I get here?”  I have been on this earth for a little over 70 years, and, I am convinced that, except for infancy, I have probably been an engineer for my entire life.  I don’t think it is …

Automatic Chemical Makeup – Will it Work for You?

Automatic chemical addition and makeup is an attractive on feature on today’s sophisticated cleaning machines.  Who wouldn’t appreciate eliminating the drudgery of taking samples, titrating, refractometer readings, or whatever and adding chemistry to a cleaning or rinsing bath manually?  The trouble is that automatic chemical makeup is just not possible or applicable in all cases. Although there are …

Filter Smart!

When particles are the enemy, my general rule is filter, filter, filter!  The cost of filtration is small compared to the overall benefit even if it is only “insurance.”  There is, of course, the initial cost of installation (filter housings, pumps, plumbing, etc.) but the cost after that is going to be pretty much fixed provided …