The Light Green Machine Institute

1 Jun 16: Should we be thinking about weight in terms of production?
As we mature as an institution, it is likely we should refine our critical examination of what constitutes a lightweight paper machine.

There has been something implicit in our thoughts through the years to this point in time--we have made an assumption that we are running at the same speed and producing the same production, just with a lighter weight machine.

However, there is more to it than this.  We know for instance, in most cases we design a machine at a certain speed, all else being equal, it will have a fourdrinier of a given length, assuming we are using fourdrinier technology.  However, if, for a given width, we design the machine for x speed plus y incrementally higher speed, the fourdrinier will lengthen.  So will the dryer section.  Perhaps some other unit operations will become larger as well.

I suspect those increases in production, induced by speed will produce a machine that weighs less per annual ton produced than the one designed at the lower speed.

Any one have any thoughts or data on this?
We would like to hear from you. Please send an email to [email protected] 
with "LGMI Frontiers" in the subject line. 

As always, your comments will be appreciated.

Think light!

Brian Brogdon, Ph.D.
Executive Director


Jim Thompson

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