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Articles Written by Thielsch Engineering
Personnel:
Reinspection of Deaerator Welds is Key to Continued Safe Operation
By Helmut Thielsch and Nancy Knarr
Reprinted from POWER, Vol. 134, No. 1, pp. 63 - 65, January 1990
Failures, Repairs, and Integrity of Pulp & Paper Mill Equipment
Reprinted from AMERICAN PAPERMAKER, Vol. 53, pp. 35 - 37, May 1990
Casing Repair Adds Years of Service to Vintage Turbine
By Helmut Thielsch and Nancy Knarr
Reprinted from POWER, Vol. 135, No. 1, pp. 55 - 56, January 1991
In-Service Creep Strain Measurements for Life Prediction and Extension of
Piping and Boiler Components
By Helmut Thielsch
Reprinted from MATERIALS EVALUATION, Vol. 49, No. 2, pp. 123 - 129, February
1991
Accelerated Tube Metal Wastage in Municipal Solid Waste Fired Furnace
By Helmut Thielsch
Presented at NACE Annual Conference, March 1991, Cincinnati, Ohio
Capacitive Creep Strain Measurements Predict Component Life
By Helmut Thielsch, Nancy Knarr and Caroline Burdick
Reprinted from POWER ENGINEERING, Vol. 95, pp. 24 - 27, May 1991
Engineering Analysis of Suitability for Pressure Vessel Re-Rating
By Ara Nalbandian and Nancy Knarr
Presented at TAPPI Conference, September 1991, Nashville, Tennessee
Reformer Failures and Repairs
By Helmut Thielsch and Florence Cone
Reprinted from FINDS, Vol. VI, No. 3, pp. 29 - 34, 3rd Quarter 1991
Recommended Practice for Prevention, Detection and Correction of Deaerator
Cracking
By Nancy Knarr
Reprinted from TAPPI Journal, Vol. 74, No. 9, pp. 297 - 298, September 1991
Turbine Casing - Inspection Repair Considerations Extension of Remaining Life
By Helmut Thielsch and Nancy Knarr
Presented at EPRI Conference, December 1988, San Antonio, Texas
Considerations in the Evaluation of Graphitization in Piping Systems
By Helmut Thielsch
Reprinted from The Welding Journal, Vol. 34, Research Supplement, pp. 286S -
294S, June 1955
Cost Effective Evaluation of Our Roadway Bridges
By Pamela Olsen
Reprinted from Providence Engineering Society, ENGINEERINGS, Vol. LXVII, No. 8,
April 1992
Fitness-for-Purpose Evaluation of a Deaerator with Cracking
By Helmut Thielsch and Nancy Knarr
Reprinted from MATERIALS EVALUATION, Vol. 50, No. 5, pp. 561 - 564, May 1992
Critical Component Failures Associated with Pipe Supports - Causes and
Prevention
By William Thurley and Helmut Thielsch, Jr.
Presented at ASME Pressure Vessels and Piping Conference, June 1992, New
Orleans, Louisiana
Operation and Maintenance of Instrumentation Systems
By Edward R. Altiere
Reprinted from Journal of the New England Water Works Association, Vol. 106, No.
2, pp. 109 - 111, June 1992
Corrosion Damage Assessment Utilizing Special Ultrasonic Techniques
By Matt Dowling and Nancy Knarr
Presented at TAPPI Conference, September 1992, Boston, Massachusetts; and
Published by CSNDT Journal, Vol. 14, No. 4, pp. 12 - 14, July/August 1993
Failures, Integrity and Repairs of Petrochemical Plant Reformers
By Helmut Thielsch and Florence Cone
Presented at AIChE Conference, September 1992, San Antonio, Texas; and
Published in AMMONIA PLANT SAFETY (AIChE Technical Manual), Vol. 33, pp. 30 -
52, 1993
Utilization of Modern Nondestructive Testing Techniques on Plant Reliability
By Helmut Thielsch and Florence Cone
Presented at First International Conference on Improving Reliability in
Petrochemical Refineries, and Chemical and Natural Gas Plants, November 1992,
Houston, Texas; and
Published in two parts by MATERIALS EVALUATION, Vol. 52, No. 4, pp. 457 - 461,
April 1994 and Vol. 52, No. 5, pp. 550 - 554, May 1994. Also printed in two
parts by CSNDT Journal, Vol. 14, No. 3, pp. 10 - 20, May/June 1993 (Part 1), and
Vol. 14, No. 4, pp. 18 - 24, July/August 1993 (Part 2)
Pressure Part Protection Against High Temperature Corrosion
By Nancy Knarr, Wayne Pratt and Brad Rogers
Presented at NACE Annual Conference and Corrosion Show, March 1993, New Orleans,
Louisiana
Equipment Failures
By Helmut Thielsch and Florence Cone
Reprinted from AMERICAN PAPERMAKER, Vol. 56, No. 3, pp. 44 - 47, March 1993,
also
Published in CSNDT Journal, Vol. 15, No. 1, pp. 10-12, January/February, 1994
Consider Repair Before Replacing Cracked Steam-Turbine Shells
Reprinted from POWER, Vol. 137, No. 3, pp. 69 - 70, March 1993
Inspecting Urea Reactors and Associated Equipment
By Helmut Thielsch and Florence Cone
Reprinted from FINDS, Vol. VIII, No. 2, pp. 32 - 35, 2nd Quarter 1993
Causes and Resolution of Through-Wall Cracking in a Cold Reheat Piping System
By William Thurley and Anthony Carrino
Presented at ASME Pressure Vessel and Piping Conference, July 1993, Denver,
Colorado and
Published in the Conference Proceedings, PVP-Vol. 255, 1993, pp. 143 - 154
Boiler Waterwall Tube Evaluation to Identify Deterioration and Prevent Forced
Outages
By John Caunter and David Gillespie
Presented at ASME Pressure Vessel and Piping Conference, July 1993, Denver,
Colorado and Published in the Conference Proceedings, PVP-Vol. 255, 1993, pp. 13
- 21
Increasing Plant Reliability by Nondestructive Examinations
By Helmut Thielsch and Florence Cone
Reprinted from NITROGEN, No. 205, pp. 39 - 47, September - October 1993
How to Evaluate and Repair Hydraulic Presses and Cylinders
By Helmut Thielsch and Florence Cone
Reprinted from FLUID POWER SERVICE CENTER, Vol. 2, No. 4, pp. 22 - 23, Summer
1993
Potential Failure Mechanisms in Composite Tubing
By Helmut Thielsch and Florence Cone
Presented at the TAPPI Engineering Conference, September 1993, Orlando, Florida;
and
Published in the Engineering Conference Proceedings, Book 1, 1993, pp. 233 - 257
Failures and Failure Prevention in Process Piping
By Helmut Thielsch and Florence Cone
Presented at the First International Symposium on Process Industry Piping,
December 1993, Orlando, Florida; and Published in the Symposium Proceedings,
pp.16/1 - 16/54, December, 1993. A shortened version entitled,
"Service-Related Failures in Process Piping" was reprinted in
MATERIALS PERFORMANCE, Vol. 34, pp. 53 - 56, August 1995
Remedies for Waste-to-Energy Plants' Most Vexing Operations and Maintenance
Problem: Tube Failures
By Helmut Thielsch and Florence Cone
Reprinted from SOLID WASTE TECHNOLOGIES, Vol. VIII, No. 1, pp. 32 - 39,
January/February 1994
Equipment Integrity - Essential to Risk Management
By Helmut Thielsch and Florence Cone
Presented at American Risk Protection Consultants 21st Annual Loss Control and
Risk Management Conference, March 1994, Clearwater Beach, Florida
Steam Chest Repairs
By Caroline Burdick
Presented at the EPRI International Conference on Welding and Repair Technology
for Fossil Power Plants, March 1994, Williamsburg, Virginia
Modifications to Tee Connections and Pipe Supports of the Main Steam Piping
Systems Unit Nos. 1, 2, and 3, Wood River Generating Station, Illinois Power
Company
By Helmut J. Thielsch, Jr., James M. Yagen and Kenneth W. McCully
Presented at the EPRI International Conference on Welding and Repair Technology
for Fossil Power Plants, March 1994, Williamsburg, Virginia and published in the
Conference Proceedings, Session 5, Piping, March 1994
Condition Assessment and Repair Welding of High Temperature Headers
By Matthew Dowling
Presented at the EPRI International Conference on Welding and Repair Technology
for Fossil Power Plants, March 1994, Williamsburg, Virginia and
Published in the Conference Proceedings, Session 1, Headers and Pressure
Vessels, March 1994
Failures and Failure Prevention of Paper Machine Components
By Helmut Thielsch and Florence Cone
Presented at the TAPPI Engineering Conference, September 1994, San Francisco,
California and Published in the Engineering Conference Proceedings, Book 1,
1994, pp. 31 - 83
Utility Repairs Damaged Generator Shaft, Avoids Replacement
Reprinted from HYDRO REVIEW, Vol. XIII, No. 5, pp. 112 - 113, August 1994
Digester Safety - Failures, Failure Prevention and Repairs of Batch and
Continuous Digesters
By Helmut Thielsch and Florence Cone
Reprinted from AMERICAN PAPERMAKER, Vol. 57, No. 9, pp. 54 - 57, September 1994
Failures in Waste Heat Boilers
By Helmut Thielsch, Florence Cone and Jonathan Freeman
Presented at the AIChE Ammonia Safety Symposium, October 1994, Vancouver, BC,
Canada; and
Published in AMMONIA PLANT SAFETY (AIChE Technical Manual), Vol. 35, pp. 81 -
108, 1995
Corrosion in Recovery and Refuse-Fired Boilers
By Helmut Thielsch and Florence Cone
Presented at the International Joint Power Generation Conference, October 1994,
Phoenix, Arizona
Equipment Integrity Inspections - Essential to Risk Management
By Helmut Thielsch and Florence Cone
Presented at the Third International Conference on Improving Reliability in
Petroleum Refineries and Chemical Plants, November 1994, Houston, Texas
Digester Inspections for Safety and Integrity
By Helmut Thielsch and Florence Cone
Reprinted from PAPER INDUSTRY, Vol. 11. No. 6, November/December 1994, pp. 12,
26 - 27
Failures and Repairs of Turbine Casings
By Helmut Thielsch and Florence Cone
Presented at the 57th American Power Conference, April 1995, Chicago, Illinois;
and
Published in the Conference Proceedings, Volume 57-III, 1995, pp. 1917 - 1948
Failures and Repairs of Headers and Drums in Fossil Fired Boilers
By Helmut Thielsch and Florence Cone
Presented at the 1995 Joint ASME/JSME Pressure Vessels and Piping Conference,
July 1995, Honolulu, Hawaii; and Published in the Conference Proceedings,
"Service Experience, Structural Integrity, Severe Accidents, and Erosion in
Nuclear and Fossil Plants", PVP-Vol. 303, 1995, pp. 323 - 375
Catastrophic Failure of Cast Iron Dryer Roll Caused by Severe Erosion
Resulting from Spoiler Bar Failures
By Jim Johnson, Helmut Thielsch and Susan Freeman
Presented at the TAPPI Engineering Conference, September 1995, Dallas, Texas;
and
Published in the Engineering Conference Proceedings, Book 2, 1995, pp. 565 - 581
and
The TAPPI Journal, Vol. 79, No. 4, pp. 83 - 90, April 1996
Inspection of Surface Defects in Paper Machine Dryer Cans
By Helmut Thielsch, Nancy Hoffman and Jonathan Freeman
Presented at TAPPI Engineering Conference, September 1995, Dallas, Texas; and
Published in the Engineering Conference Proceedings, Book 2, 1995, pp. 583 - 593
Failures in Urea Reactors
By Helmut Thielsch and Florence Cone
Presented at the AIChE Ammonia Symposium, September 1995, Tucson, Arizona; and
Published in AMMONIA PLANT SAFETY (AIChE Technical Manual), Vol. 36, pp. 232 -
253, 1996
Repair Welding of a High Pressure Turbine Casing Subject to Thermal Fatigue
Cracking and Original Manufacturing Defects
By Matthew Dowling, Helmut Thielsch and Darrell Wisner
Presented at the POWER-GEN Americas '95 Conference, December 1995, Anaheim,
California
Induction Heating Coil Design for Materials Testing Applications
By David Spenciner
Reprinted from TEST Engineering & Management, Vol. 57, No. 6, pp. 12 - 13,
December/January 1995-96
Microbiological Activity and Chlorides Cause Carbon Steel Pipe Pitting
By Susan Freeman and Helmut Thielsch
Reprinted from MATERIALS PERFORMANCE, Vol. 35, No. 3, pp. 65 - 66, March 1996
Repair Welding of the Control Valve Steam Chest at the Barry Steam Station,
Unit No. 3, Alabama Power Company
By Matthew Dowling, H. Michael Richards and Lewis Jeffers
Presented at the EPRI Conference on Welding and Repair Technology for Power
Plants, May 1996, Daytona Beach, Florida, and Published in the Conference
Proceedings, Session 10 - Turbine Casings, Steam Chests, Diaphragms, Stop
Valves, January 1997, pp. 663 - 677
Accelerated Fatigue Testing
By David Spenciner and Muhammed Ovase
Reprinted from ADVANCED MATERIALS & PROCESSES, Vol. 150, No. 5, pp. 29 - 30,
November 1996
Microbiological Corrosion in Municipal Water Treatment Plant Piping
By Helmut Thielsch and Susan Freeman
Reprinted from WATER Engineering & Management, Vol. 144, No. 5, pp. 18 - 19,
May 1997
Texas Facility Investigates Catastrophic Failure
By Helmut Thielsch and Florence Cone
Reprinted from Chemical Processing, Vol. 60, No. 5, pp. 50 - 52, May 1997
Explosions, Critical Exposures and Leaks in Recovery Boilers
By Helmut Thielsch and Florence Cone
Presented at the TAPPI Engineering Conference, October 1997, Nashville,
Tennessee; and
Published in the Engineering Conference Proceedings, Book 2, 1997, pp. 527 - 565
Stress Analysis of Overhung Flange and Head Sections in Yankee Dryers
By T. H. Service, Ph.D., P.E. and A. Nalbandian, P. E.
Presented at the TAPPI Engineering Conference, October 1997, Nashville,
Tennessee; and
Published in the Engineering Conference Proceedings, Book 2, 1997, pp. 705 - 708
Nondestructive Examination of Structure
By Richard DeWolf
Presented at Construction New England '99, May 1999, Boston, Massachusetts
Failure Analysis and Repair Welding of Superheater Outlet Header Subject to
Thermal Fatigue Cracking
By Helmut Thielsch, Florence Cone, Robert Smoske and Jason Husband
Presented at the 50th Annual Generation Conference of the Association of Rural
Electric Generating Cooperatives (AREGC), June 1999, Biloxi, Mississippi.
Complete copy of paper available from Thielsch Engineering. (Abbreviated version
was also published in ADVANCED MATERIALS & PROCESSES, Vol. 157, No. 2, pp.
43-44, February 2000.)
The Sense and Nonsense of Seam Welded Pipe Inspections - Sharing 40 Years of
Experiences
By Helmut Thielsch, Florence Cone and Peter Kennefick
Presented at the EPRI 5th Piping & Bolting Inspection Conference, June 1999,
San Antonio, Texas. Complete copy of paper available from Thielsch Engineering.
(Abbreviated version was also published in POWER, Vol. 144, No. 1, pp 49, 50 and
52, January/February 2000.)
Selection and Application of Nondestructive Examination Techniques for
Non-Metal Components
By Richard H. DeWolf, Nancy Hoffman and Jon Freeman
Presented at the Maintenance and Reliability Conference, May 2000, Knoxville,
Tennessee
Maximizing the Safety of Critical Piping Systems by Meaningful and
Cost-Effective Inspections and Repairs
By Helmut Thielsch, Florence Cone and Peter Kennefick
Presented at the 6th Annual Outage "Best Practices" Conference, NUS
Information Services, August 2000, Clearwater Beach Florida
Development of Paper Machine Dryer Inspection Guidelines
By Roland O'Brien-Bills, Nancy Hoffman and Richard H. DeWolf
Presented at TAPPI Engineering Conference, September 2000, Atl;anta, Georgia
Reference Book: Defects and Failures in Pressure Vessels and Piping
By Helmut Thielsch, P.E.
Published by Robert E. Krieger Publishing Co., Inc.
Available from Thielsch Engineering, Inc. at $49.50 plus $5.00 shipping
Copies of any of the above articles are available by contacting:
Publications Department
THIELSCH ENGINEERING, INC.
195 Frances Avenue, Cranston, RI 02910
Telephone: (401)467-6454 Fax: (401)467-2398
For more information contact:
Ara Nalbandian
Tel: (401) 467-6454
Fax: (401) 467-2398
E-Mail:
nalbandiana@thielsch.com
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