Available Technical Papers Summary

Technical papers are available from APTECH.

Contact  Kevin Haraor Terry Rettig  for more information or copies. Email us with your request using the above links or call APTECH Engineering Services, Inc. at (408) 745-7000 .

TP Number
   Technical Paper Title

TP001

Advances in Piping Analysis and Life Assessment for Pressure Vessels and Piping

TP002

Analysis Methods for Evaluating Leak-Before-Break in U-Tube Steam Generators

TP003

Analysis of a Compressor-Wheel Failure

TP007

Application of Leak-Before-Break Analysis Methods To Primary System Bolted Closures

TP009

The Aptech Proprietary Report On Hydrogen Water Chemistry

TP010

A Probabilistic Fracture Mechanics Evaluation of a Flawed Butane Storage Tank

TP011

MIC Failure Analysis (Reprint from Materials Performance Vol. 33, No. 4)

TP012

Assuring Increased Reliability of Superheater and Reheater Tubing and Headers by Optimization of Steam Side and Gas Side Temperatures

TP013

Boiling Water Reactor Intergranular Stress Corrosion Cracking - Flaw Shape and Life Predictions

TP014

Characterization and Analysis of Pitting Corrosion/Corrosion Fatigue Failures in Waterwall Tubes in Fossil Fueled Boilers

TP016

Cost Effective High Energy Piping Life Assurance

TP017

Creep Damage and Remaining Life Assessment of Superheater and Reheater Tubes

TP018

A Methodology to Measure the Impact of Cyclic Operations and Power Derations on Plant Life and Reliability

TP019

Degradation, Condition Assessment, and Life Assessment of Boiler Tubes

TP020

Description of the Computer Program "BALIFE"

TP021

Developing Suitability-For-Service Criteria for Degraded Components Using Tolerable Flaw Diagrams

TP022

Dimensionless Damage Approach to Fatigue Crack Growth

TP023

Economic Tradeoffs Among Load, Life, and Reliability of Power Plant Equipment

TP024

Condition Assessment of Expansion Joints & Supports

TP025

Stress Intensity Factor Approximations For Cracks Located At Thread Root Region of Fasteners

TP026

P.T. Badak Liquefied Natural Gas Plant Sea Water Cooling System Remaining Useful Life (RUL) Assessments

TP027

EPRI Workshop on Steam Turbine Casings

TP028

Evaluating The Contribution of Corrosion in Fatigue Failures

TP030

Life Cycle Management of Aging Plant Equipment to Assure Mechanical Integrity

TP032

Computational Method to Perform the Flaw Evaluation Procedure as Specified in the ASME Code, Sect. XI, Appendix A

TP033

Boiler Heat Transfer Model (technical description)

TP034

Failure Rate Predictions for High Temperature Aircraft Engine Blades with Defects and Vibration Problems

TP035

Field Evaluation of Cofiring Gas with Coal for Quantifying Operational Benefits and Emissions Trim in a Utility Boiler

TP036

Fitness-For-Service Assessment of Environmentally-Assisted Corrosion and Cracking in a Refinery Mixed Butane Storage Tank

TP038

Future Trends & Open Problems in NDE Engineering - An Analysts View

TP039

High Energy Steam Line Examinations - A Realistic Approach

TP040

Life Management of High Energy Piping Girth Welds

TP041

APTECH's Hydrogen Water Chemistry Assistant (HWCA): Tutorial and Predictive Software For Hydrogen Water Chemistry

TP042

An Engineering Evaluation of Service Degraded 316N Main Steam Piping Weldments

TP043

Improved Superheater Component Longevity by Steam Flow Redistribution

TP044

Aptech's Technical Support for Independent Plant Extreme Events Evaluations (IPEEE)

TP047

Assessment of Remaining Useful Life of Ships Service Turbine Generator Steam Chests

TP048

A Life Assurance Program for High Energy Steam Lines

TP049

Life Management for Fossil Power Systems

TP050

City of Austin Generation Reliability Improvement Program (GRIP)

TP051

EPRI's BTF Metallurgical Guide For The Identification and Correction Of Cycle Chemistry-Influenced Damage

TP052

Mathematical Simulation of Thermal Displacements for a Steam Piping System in the Material Creep Regime

TP053

Methodology for Assessing the Remaining Useful Life of Critical Coal-Fired Power Plant Components

TP054

Economically Optimize Power Plant Cycling Costs, Life, and Reliability

TP055

Oxidation of Boiler Tubing

TP057

Penstock Failure Evaluation and Support Redesign

TP058

Predictive Modeling and Strategic Planning to Manage PWSCC of Alloy 600 in PWRS

TP059

Pressure Vessel Inspection Criteria Based on Fitness-for-Purpose Assessment

TP061

Probabilistic Boiler Tube Failure Forecasting

TP062

Progress Towards On-Line Surveillance of Corrosion Behavior in Service Water Systems

TP065

Cycling Cost Assessment Project

TP066

Reference Toughness Curves for Moderately High Yield Strength Pressure Vessel Steels and Lower Strength Pressure Vessel, Piping, and Structural Steels

TP067

A Reheat Outlet Header Inspection Methodology

TP069

Effect of Cycling and Unit Operating Limits on Fossil Plant Production Cost and Availability

TP070

Remaining Life of High-Energy Piping Systems Using Equivalent Stress

TP071

Life Assessment of Superheater/Reheater Tubes in Fossil Boilers

TP072

ASME Significance of Centerline Lack-of-Penetration Defects in Double Seam-Welded SA-312 Pipe

TP073

The Significance of Defects in Welded Long-Span Bridge Structures

TP074

Significance of Defects in Wide Flange Beams in the Limerick Generating Station Units 1 and 2

TP075

SO2 and Particulate Emissions Reduction in a Pulverized Coal Utility Boiler Through Natural Gas Cofiring

TP076

Sources of Common Cause Failures in Decision-Making Involved in Man-Made Catastrophes

TP077

Stress Analysis and Remaining Useful Life Methodology for Steamlines and Headers

TP078

Example of an APTECH Boiler Heat Transfer and Circulation Study

TP079

Phosphate Treatment: Boiler Tube Failures Lead To Optimum Treatment

TP080

High Energy Inspection of Steam Lines Without Removing the Insulation

TP081

TubeMod — A Method for Extending Life and Reliability of Superheaters and Reheaters

TP082

Risk Assessment of a Deep Sea Pipeline

TP083

Evaluation of Limit Stop User Input Errors in Piping Flexibility Analyses

TP085

Using BNA to Guide Boiler Condition Assessments

TP086

Water Hammer Conservatisms

TP087

Waterhammer Damage Caused by Vacuum

TP088

Guidelines for the Condition Assessment and Remaining Useful Life of Power Plant Turbine/Generators

TP089

Steam Generator Engineering Services

TP090

Sensitivity of Typical Temperature or Stress Variations on the Remaining Life of High Energy Piping Systems (Presented at 1993 ASME Pressure Vessels and Piping Conference, Denver, Colorado)

TP091

PWSCC Prioritization Methodology, Life Prediction, and Strategic Planning

TP092

Prediction of Creep Life Exhaustion in High Energy Piping System Girth Welds

TP093

True Cost of Cycling Enhances the Value of Dispatchable Hydro

TP094

Minimizing the Life Cycle Costs Attributed to Boiler Tubing in Fossil-Fueled Plants

TP095

Technical Basis for the Revised Stress Intensity Factor Equation for Surface Flaws in ASME Section XI Appendix A

TP096

Another View of R&D Champions - The Dark Side

TP097

TubeMod Technology for Reduction of Tube Failures

TP098

Economics of Cycling 101: What Do You Need to Know About Cycling Costs and Why?

TP099

TubeMod Analysis Saves Capital Expense of Reheater Replacement and Removes Heat Rate Penalty on a 624 MW Coal-Fired Unit

TP100

Long-Term Damage Management Strategies for Optimizing Steam Generator Performance

TP101

The Ship Owner’s Problem: Remaining Useful Life

TP102

Autorefrigeration Qualifications Package

TP103

Failure Analysis and In-Service Experience – Steam Turbines (from the ASME Handbook on Water Technology for Thermal Power Systems)

TP104

Estimating the Total Cost of Cycling Operations at the Los Angeles Department of Water and Power, Haynes Generating Station Unit 5

TP106

Mechanical Integrity and Piping Systems — A Comprehensive Approach

TP107

Reducing the Cost of Reexaminations in High Energy Piping Systems (presented at Power-Gen International ‘96)

TP108

Risk-Based Mechanical Integrity: Its Impact on Environmental, Health and Safety; and Process Safety Management

TP109

Plant Maintenance Improvements Using Risk and Reliability Tools

TP110

Nonintrusive Inspection for Flow-Accelerated Corrosion Detection

TP111

Application of Decision Analysis to Arbitrate Failure Responsibility

TP112

Extending Time Between Equipment Overhauls

TP113

Failure to Achieve Hot Section Component Service Intervals — Why and What to Do About It

TP114

High Energy Piping Reexaminations Fewer Locations -- Higher Confidence

TP115

Steam Flow Redistribution for Extending Life and Reliability of Superheaters and Reheaters

TP116

Risk Assessment Method for LP Disc Attachments with Stress Corrosion Cracking

TP117

The Cognac Fatigue Experiment

TP118

INCOTEST Projects in the United States for the Detection of Flow-Accelerated Corrosion

TP119

Pulsed Eddy Current Projects for the Detection of Flow-Accelerated Corrosion

TP120

Calculating Remaining Useful Life of Ships

TP121

Creep Relaxation behavior of High Energy Piping

TP122

Safe-Life Evaluation and Repair Acceptance Criteria for Dovetail Cracking in Low Pressure Rotors

TP123

Optimizing Power Plant Cycling Operations While Reducing Generating Plant Damage and Costs at the Irish Electric Supply Board

TP124

Variability And Statistical Bounds Of The Strength And Fracture Toughness Of Common Structural Steel Shapes And Weld Metals Used In Welded Steel Moment Frame Connections In Building Construction

TP125

Engineering Evaluations of Column Continuity Plate Detail Design and Welding Issues in Welded Steel Moment Frame Connections

TP126

What are Today’s choices for PWR ’s Water Chemistry

TP127

Predicting, Examining, and Evaluating FAC in US Power Plants

TP128

Power Plant Asset Market Evaluations: Forecasting the Cost of Power Production

TP129

Comparison of Flow-Accelerated Corrosion Prediction and Field Measurement Results

TP130

Metallurgical Case Studies in Common HRSG Damage Mechanisms

TP131

Risk Based Inspection Study of Slaughter Gas Plants

TP132

The TransAlta High Energy Piping Program - A Five-Year History (tobe presented 7/00)

TP133

Experience in Cycling Cost Analysis of Thermal Power Plants in North America and Europe

TP134

Power Plant Cycling Operations and Unbundling Their Effect on Plant Heat Rate

TP135

Effect of Operation Temperature on Life Consumption for 1¼Cr-½Mo-Si and 2¼Cr-1Mo Materials

TP136

Power Plant Operations and Cost Optimization Using Real-Time Cost Analysis Tools

TP137

Case History of Solidiation Cracks in 2-1/4Cr-1Mo Low Carbon Welds - Cholla Unit 2

TP138

Creep Life Prediction For High Energy Piping Girth Welds Case History - Cholla, Unit 2

TP139

Electric Power Research Institute's Heat Recovery Steam Generator Tube Failure (HTF) Manual

TP140

Flow Accelerated Corrosion in Heat Recovery Steam Generator Low Pressure Sections

TP141

Duke Energy North America Moss Landing Power Plant Units 6 & 7 Reliability Upgrades and Unit Cycling Analysis

TP142

Comparison of a Life Consumption Analysis to Section III, Subsection NH Design Rules for a Main Steam Girth Weld Creep Crack

TP143

Case Studies of Pulsed Eddy Current to Measure Wall Loss in Feedwater Heater Shells

TP144

Impacts of Low NOX Modifications on Boilers with Emphasis on DNB

TP145

Application of Advanced Ultrasonic Technology to Measure Internal Deposit Thickness for Boiler Waterwall Tubes in Thermal Power Plants

TP146

Ultrasonic Technique for Measuring Waterwall Deposit Thickness

TP147

Energy Storage Systems (ESS) Provide Significant Added Value by Reducing the Cycling Costs of Conventional Generation

TP148

True Cost of Cycling Power Plants Enhances the Value of Compressed Air Energy Storage (CAES) Systems

TP149

Fabrication, Construction, and Operation Problems for Grade 91 Fossil Power Components

TP150

EPRI’s Guidelines for the Remaining Life Assessment of Austenitic Stainless Steel Superheater and Reheater Tubing

TP151

Using Real Time Temperature, Stress, and Flow Readings to Determine Equipment Damage, Maintenance Costs, and Operational Strategy in Power Plants

TP152

Remaining Life Assessment of Austenitic Stainless Steel
Superheater and Reheater Tubing Subject to Longterm Overheat-Creep

TP153

HRSG Dependability

TP154

EPRI's Guidelines for the Remaining Life Assessment of
Austenitic Stainless Steel Superheater and Reheater Tubing

TP155

Evaluation of Long-term Overheat Creep Failures of SA213 T91
Superheater Tubes at AEP's Glen Lyn Plant

TP156

Creep Rupture Properties of Grade 91 Weldments

TP157

Oxide Exfoliation of 347HFG in High Temperature Boilers

TP158

Life Management Projects for Three Main Steam Piping Systems
TP159 A Strategy for Life Management of Main Steam and Hot Reheat Piping Systems

TP159

A Strategy for Life Management of Main Steam and Hot Reheat Piping Systems

TP160

An Estimator for the Influence of Service Temperature on Creep Rupture Life

TP161

Life Management of Main Steam and Hot Reheat Piping Systems Part 1

TP162

Life Management of Main Steam and Hot Reheat Piping Systems Part 2

TP163

Equipment Life Optimization Program (ELOP) Helps Plants Compete By Maximizing Maintenance Efficiencies

TP164

Case History of Solidification Cracks in 2-1/4Cr - 1Mo Low Carbon Welds – Cholla Unit 2

TP165

Comparison of a Life Consumption Analysis to Section III, Subsection NH Design Rules for a Main Steam Girth Weld Creep Crack

TP166

Reduction of Slagging and Fouling of Waterwalls at the End of the Firebox, Superheater, and Reheater of Pulverized Coal-fired Boilers

TP167

The Real Cost Implications of On/Off Cycling Combined Cycle Power Plants

TP168

Evaluation of Short and Long-Term Creep Rupture Properties for Grade P91 Materials

TP169

Cost Effective Method of Controlling Slagging and Fouling in Coal-Fired Utility Boilers

TP170

Using Real -time Cost of Cycling and Damage to Optimize Plant Performance

TP171

Enhancing Life and Reliability of Existing Superheaters and Reheaters, Seventeen Years of Performance

 
 
 

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