Category Archives: Jenike Blog

The Physical Properties of Bulk Solids; or How to Get Through Airport Security

  Gathering physical properties of liquids or gases is usually straightforward. For example, if I needed a fluid’s viscosity and specific gravity to design a system for handling a liquid or gas, I need only to perform a Google search … Continue reading

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Segregation – Another Breakfast Table Horror Story

  “Hey kids, what happened to all the fruit flakes in the cereal? It looks like you all got the dried strawberries and large flakes and Dad and I got all the crumbs at the end of the box with … Continue reading

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Silo Design – Getting it Right the First Time – Part 4

  In the continuing story of how to design bins and silos, here is an item that attracts little thought or analysis. Non-axisymmetric hoppers Let us look at some difficult flow behavior and unsatisfactory results found in non-axisymmetric hoppers. An … Continue reading

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Temperature and the Caking of your Product

  Caking of powders or granular bulk solids is a very common problem with consequences that could be devastating for your business. In short, your customer will see your caked material as a poor-quality product, resulting in multiple complaints. We … Continue reading

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Where Did the Senior Technical Project Managers and Experienced Decision-Makers Go?

  Over the past 25 years or so, I’ve noticed a distinct change in how high level decision-makers expect technical projects to be managed. When I joined the engineering workforce, projects were nearly always led by senior technical staff who … Continue reading

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Snowboarding vs. Skateboarding: Or a Tale of Two Friction Angles

I am excited that winter has arrived in New England. Last winter, my nephew taught me how to snowboard. I figured that I would be able to pick up the sport rather quickly. After all, I was an avid skateboarder … Continue reading

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The Value of Getting it Right the First Time

  Commonly, we are known as the bulk solids “problem solvers.” Believe me, we’re happy to have that reputation, but even better for us (and our clients), would be to prevent problems in the first place. Many times every year, … Continue reading

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Death of a Bulk Solids Pioneer

  I just learned that Abraham Goldberg was killed in Jerusalem last month. The BBC news item link below gives details: http://www.bbc.co.uk/news/uk-30100918 Abraham initiated conferences on silos, bulk solids and pneumatic conveying in the UK, Chicago and elsewhere in the … Continue reading

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Looking At Jenike & Johanson From Many Perspectives

Originally as an employee of Apollo Technologies in 1976, and ultimately one of the founding owners of a Dallas based engineering services company (1982), Guardian Utility Services, Inc. (GUS, Inc.), I remember well discovering Jenike & Johanson’s (J&J) revolutionary “mass … Continue reading

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If You’ve Seen one Sample, You’ve Seen ‘em all – Right?

Some people ask that, “If J&J tested one sample of say sugar, we must have tested it all – can’t we just use historical data?” This question has come up for many materials such as iron ore, limestone, bran, flour, and microcrystalline cellulose, … Continue reading

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