| Date | September/October 1995 |
| Volume | 1 |
| Issue | 4 |
| Return to Journal Index | |
September/October 1995 Inspectioneering Journal Article Index
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September/October 1995 Inspectioneering JournalBy Susan W. Borenstein at Structural Integrity Associates, Inc., and George J. Licina at Structural Integrity Associates, Inc.
Low-energy piping system failures in power-generating facilities are often the result of fouling and corrosion. These degradation mechanisms can affect the capacity of piping for fluid-carrying, the heat transfer rates of heat exchangers, and the structural integrity of piping systems. Steels are not immune to pitting, underdeposit corrosion, and microbiologically influenced corrosion (MIC). Once advanced inspection technique, using an enhanced ultrasonic inspection system coupled with special imaging software, has demonstrated the capability to accurately image and size closed tunneling pits that often form in austenitic stainless steel weldments due to MIC.
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September/October 1995 Inspectioneering JournalBy Del Underwood at Det Norske Veritas
A key to any piping evaluation program is to understand where problems can occur. Vibrating piping can propagate a crack relatively quickly. Have you ever installed gussets to stabilize a vibrating pipe situation only to find, shortly thereafter, that the gussets have cracked the pipe? If so, you've got lots of company.
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September/October 1995 Inspectioneering JournalBy E.B. Lendvai-Lintner at Exxon Research and Engineering Company, and H.A. Wolf at Exxon Research and Engineering Company
PERF (Petroleum Environmental Research Forum), a mechanism used successfully for joint industry environmental projects, is being considered for NDE related research. Many of the same companies using the approach for environmental challenges make up the group processing work in the field of mechanical integrity related NDE.
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September/October 1995 Inspectioneering JournalBy Greg Alvarado at Inspectioneering Journal
If it's glass-lined, chances are the environment is very corrosive to most metallics. In general, once the glass lining is breached, through-wall corrosion doesn't take very long. An effective maintenance, operation and inspection program will go a long way in minimizing this possibility.
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September/October 1995 Inspectioneering JournalBy Nancy M. Carlson at Idaho National Engineering Laboratory, and Richard E. Rice at Idaho National Engineering Laboratory
The U.S. Department of Energy's Idaho National Engineering Laboratory (INEL) is leading an industry/university/national laboratory team to develop two NDE technologies that will economically extend refinery plant lifetime while continuing to protect the public, the environment, and plant personnel. If successful, the first, high-temperature flaw detection and sizing, will allow inspection of critical structural components on-line, increasing the time of safe operation.
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September/October 1995 Inspectioneering JournalBy Dr. Nand K. Gupta at Omega International Technology, Inc.
In May 1995, Omega International Technology, Inc., began testing a new system to measure pipe wall thicknesses using digital radiography (RT) scanning. This new system has the potential for being faster, less labor intensive, and shown improved accuracy over traditional ultrasound testing, and at a lower cost. Perhaps best of all, scanning can be performed while the pipe is in service, insulation in place.
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September/October 1995 Inspectioneering JournalBy John Reynolds at Intertek
In August of 1993, the hydrocarbon process industry once again experienced a catastrophic loss when a major coker unit fire occurred in Louisiana. The cause of that incident was not unlike many others that have occurred over the years throughout the industry: inadvertent substitution of construction materials.
