Displaying 1–25 of 213 results for Andrew Sloley, contributing editor

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Carefully check vendor references

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Determine the differences between a cited installation and yours, Andrew Sloley, contributing editor, says in this month's Plant InSites column.

Column configuration can cripple performance

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The importance of having the inherent capability to meet operating requirements and enable proper instrumentation performance is stressed by Contributing Editor Andrew Sloley.

Make jacketing your strong suit

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Small details in jacketed-pipe configuration can have a big impact, according to Chemical Processing's Contributing Editor Andrew Sloley.

Keep others from making “classic” mistakes

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A heat exchanger problem provides a textbook example of design limitations, according to Contributing Editor Andrew Sloley.

Consider changing the speed not the pump

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Chemical Processing's Contributing Editor Andrew Sloley advises that instead of reflexively resorting to brute force to provide enough head, adjusting the pump speed might make for a better solution.

Understand and Control Hot Vapor Bypass

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Contributing Editor Andrew Sloley says pressure control technique works well if implemented properly, in this month's Plant InSites column.

Do some heavy thinking about light loads

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ejector, vacuum, pressure

Letters To The Editor

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Letters to the Editor -- Readers respond to the merits of helping youth to the dangers of running pumps dry.

Take the pressure off pressure control

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Linkage of other variables can stymie hot vapor bypass schemes, according to Andrew Sloley's Plant InSites column.

Vacuum System Equipment: Make Sure You've Got a Good Flange Match

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Standard large-diameter flanges don't necessarily mate. Andrew Sloley provides insight in this month's Plant Insites column.

Don’t let parallel pumps cross you up

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Small differences with parallel pumps can lead to big difficulties, according to Andrew Sloley in this month's Plant InSites column.

Don’t look at precondensers in a vacuum

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Consider the impact of the downstream vacuum ejector on precondenser performance, advises Andrew Sloley, in this month's Plant InSites column.

Correct those disturbing lapses

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Keeping liquid in a reflux drum still can prevent problems, says Andrew Sloley, in this month's Plant InSites column.

Teaming two solutions can be counterproductive

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Sometimes things just don’t add up as expected. Andrew Sloley discusses how sometimes two solutions aren't always better than one solution.

Software: Show Some Skepticism

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Software: Show Some Skepticism -- Calculated results require critical analysis.

Plant InSites: Cast a cold eye on columns

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Subcooling can complicate and compromise tower performance

Use water to check vessel integrity

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Hydrostatic testing offers advantages but requires care

Effectively Remove Droplets

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Various factors affect the choice and operation of liquid/vapor separators.

Cut Pump Speed to Cut Problems

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Cut Pump Speed to Cut Problems -- Lower rpm can translate into higher reliability.

Troubleshooting: Take to the Field

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Troubleshooting demands getting into the plant to inspect units

Properly Trigger Standby Pumps

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Properly Trigger Standby Pumps -- A pressure signal works for many but not all situations.

Centrifugal Pumps: Avoid Surprises When Cutting Impellers

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Affinity laws relate speed, head, capacity and power for different diameter impellers in a centrifugal pump. They allow quick estimates, but always remember actual performance will vary, especially if an impeller is cut down.

Process engineering: Dryer provides a concrete lesson in control

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Removing water or moisture from a liquid stream is a critical operation in many manufacturing processes. Liquid stream dryers commonly contain either molecular sieves or adsorbents; during the last 20 years, the use of molecular sieves in process engineering has become much more common.

Consider VFDs for Centrifugal Pumps

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To understand how to apply VFDs effectively, you must know the characteristics of the system and the equipment.

Grasp The Nuances Of Level Measurement

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When measuring level, it’s important to recognize that the differences in the way process instruments work can profoundly affect readings.

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