Maintenance & Reliability
Case 4: The wrong bearing in the right place
Calculate B10 life to ensure reliable operation
HP Reliability: Improve turboexpander shaft seals and bearings
Virtually all cryogenic turboexpander seals are either close-fitting labyrinth or noncontacting (dry) gas types. Conventional mechanical seals are not generally used; high velocities prohibit use of c..
Consider precast polymer concrete pump foundations
Features include faster installation, improved corrosion resistance and lower vibration levels
HP Reliability: Conclusions drawn from bearing life equations
Fig. 1 shows an example of the influence of contamination on bearing life in general terms. A "real life example" best illustrates the various aspects of bearing life calculations. It s..
Case 3: Shaft galling in a bushing
When troubleshooting, the cause may not be as obvious as it first appears
Control valves for critical applications
Know the causes of cavitation and flashing and how to prevent them
HP Reliability: Expander power absorption methods
Turboexpanders frequently used in refrigeration processes develop power, but recovery of this power has often been of secondary importance. A number of power absorption methods are dire..
HAZROP: an approach to combining HAZOP and RCM
A single merged activity provides resource savings
HP Reliability: Oil feed rates for reciprocating compressors
In the lubrication of double-acting compressor cylinders, one of the most important factors is the oil feed rate. Likelihood of over-lubrication is greater than that of supplying too li..
Using wireless technology and the Internet for predictive maintenance
Recent developments in sensors and computational power enable more machines to be monitored inexpensively
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