eddy current report · 2017-04-11 · eddy current inspections. the possibility does exist that...

BHMM ENERGY SERVICES 2745 S. Hoffman Road Indianapolis, IN 46241-3624(317)247-9300

Report of Eddy Current InspectionManufacturer: York

Model: YK-S2-R2-J2DHSerial: GBCM13330 #2

Location: INDIANA INTERNATIONAL AIRPORT 2500 S. HIGH SCHOOL ROAD INDIANAPOLIS, IN 46201

Inspected: December 23, 2011-January 2, 2012

Inspected By: ROBERT J. KIRKHAM, LEVEL III

Reviewed By:TECHNICAL MANAGER, LEVEL III

Report of Eddy Current InspectionManufacturer: York

Model: YK-S2-R2-J2DHSerial: GBCM13330 #2

Location: INDIANA INTERNATIONAL AIRPORT 2500 S. HIGH SCHOOL ROAD INDIANAPOLIS, IN 46201

Inspected: December 23, 2011-January 2, 2012

Inspected By: ROBERT J. KIRKHAM, LEVEL III

Reviewed By:TECHNICAL MANAGER, LEVEL III

Table of Contents

Section A . . . . . . . . . . . . . . .Inspection Report

Part I . . . . . . . . . . .Vessel InformationPart II . . . . . . . . . . .Summary of InspectionPart III. . . . . . . . . . .Defect SummaryPart IV. . . . . . . . . . .RecommendationsPart V. . . . . . . . . . .Data SheetsPart VI. . . . . . . . . . .Tube Chart LayoutPart VII. . . . . . . . . . .Tube Strip Charts

Section B . . . . . . . . . . . . . . .Calibration Settingsand GraphsCalibration Procedures

Section C . . . . . . . . . . . . . . .Explanation ofAbbreviations

Copyright (c) 2009, TAI Services, Inc.

S/N GBCM13330 #2

Vessel Information

Manufacturer Model Style Serial Number Type

York YK-S2-R2-J2DH Open Drive GBCM13330 #2 Centrifugal

CondenserTestEnd

Tube Count

Tube Type

Tube Material

OD

*NWT/Under Fins

*NWT/Bell/Land

#/Type Support

Tube Numbering

Row Numbering

Tube Length +- 2

Opposite Inlet/Outlet

1527

Skip Fin IE

Copper

.750

.028

.052

3 Mild Steel

Left to Right

Top to Bottom

168 Inches

EvaporatorTestEnd

Tube Count

Tube Type

Tube Material

OD

*NWT/Under Fins

*NWT/Bell/Land

#/Type Support

Tube Numbering

Row Numbering

Tube Length +- 2


1494

Skip Fin IE

Copper

.750

.028

.042

3 Mild Steel

Left to Right

Top to Bottom

168 Inches

Sub-CoolerTestEnd

Tube Count

Tube Type

Tube Material

OD

*NWT/Under Fins

*NWT/Bell/Land

#/Type Support

Tube Numbering

Row Numbering

Tube Length +- 2


140

Skip Fin IE

Copper

.750

.028

.052

3 Mild Steel

Top to Bottom

Left to Right

168 Inches

Analyst: ROBERT J. KIRKHAM, LEVEL III

* Nominal Wall Thickness

S/N GBCM13330 #2

Vessel Bay Length Information

Condenser (Length = 168 inches)S = Intermediate Support

Opp. Test End Test End

Bay 4

Bay 4

42.00"

42.00"

S3

Bay 3

Bay 3

42.00"

42.00"

S2

Bay 2

Bay 2

42.00"

42.00"

S1

Bay 1

Bay 1

42.00"

42.00"

Evaporator (Length = 168 inches)S = Intermediate Support


Bay 4

Bay 4

42.00"

42.00"

S3

Bay 3

Bay 3

42.00"

42.00"

S2

Bay 2

Bay 2

42.00"

42.00"

S1

Bay 1

Bay 1

42.00"

42.00"

S/N GBCM13330 #2

Sub-Cooler (Length = 168 inches)S = Intermediate Support


Bay 4

Bay 4

42.00"

42.00"

S3

Bay 3

Bay 3

42.00"

42.00"

S2

Bay 2

Bay 2

42.00"

42.00"

S1

Bay 1

Bay 1

42.00"

42.00"

S/N GBCM13330 #2

Defect Summary/Comparison

Comparison of Tests Performed12/27/2011 9/27/2006

Condenser Defects

ID PIT 40% - 59% PREVIOUSLY PLUGGED ID PIT 60% - 79% 9/27/2006

Location Model Serial Number

INDIANA INTERNATIONAL AIRPORT YK-S2-R2-J2DH GBCM13330 #2

Note: The Graph will indicate a Comparison Analysis when the unit has been previously tested by TAI Services.

S/N GBCM13330 #2Defect Summary/Comparison - Page 2

Evaporator Defects

MISSED EXP, NOMINAL 9/27/2006




S/N GBCM13330 #2Defect Summary/Comparison - Page 3

Sub-Cooler Defects

PREVIOUSLY PLUGGED ID PIT 40% - 59% 9/28/2006




S/N GBCM13330 #2

Summary of InspectionAn eddy current tube inspection was performed as part of a preventive maintenance programwith the following results.

Evaporator: 1494 Tubes

Significant/Measurable IndicationsNumber of

Tubes Marked

Percent of Bundle

MISSED EXP, NOMINAL 1 .07

Totals 1 .07

Condenser: 1527 Tubes


Tubes Marked

Percent of Bundle

ID PIT 40% - 59%* 1 .07

PREVIOUSLY PLUGGED 21 1.38

Totals 22 1.45

* REQUIRES ACTION

NOTE: Although not marked, all tubes gave indications of ID Pits of less than 40%. These defects were not marked to keep the tube chart neat and legible and to better illustrate any major defect patterns that may have existed.

Sub-Cooler: 140 Tubes


Tubes Marked

Percent of Bundle

PREVIOUSLY PLUGGED 1 .71

Totals 1 .71

S/N GBCM13330 #2

Summary of Inspection - page 2

NOTE: Although not marked, all tubes gave indications of ID Pits of less than 40%. These defects were not marked to keep the tube chart neat and legible and to better illustrate any major defect patterns that may have existed.

S/N GBCM13330 #2

Recommendations

The tubes in this machine were tested for normal wear patterns using accepted test methods for eddy current inspections. The possibility does exist that tubes could contain defects and/or leaks which are not detectable, such as those at or near the tube end.The following suggested repair actions are based on accepted industry standards. After removing sample tubes to confirm the inspection results, a determination of corrective action should be made by the repair agency and end user. Only these parties have knowledge of the critical applications and long-term use of the equipment. If plugging is selected over replacement, both efficiency and capacity should be considered.EVAPORATOR:The tube marked as Missed Expanded showed no loss at the intermediate support and require no corrective action. CONDENSER:Tubes indicating ID Pits of 40% or more should be isolated from the system at this time. ID Pits of less than 40% require no immediate corrective action. However, this type damage is usually progressive and should be monitored. ID Pitting can be caused by biological or chemical attack.We recommend the cause of this damage be identified and neutralized if active.Tubes marked as Previously Plugged, had been plugged prior to this inspection.SUBCOOLER:Tubes marked as Previously Plugged, had been plugged prior to this inspection.

RE-INSPECTION RECOMMENDATIONS:We recommend that a follow-up inspection be performed on these vessels as follows:Condenser: 23 December 2014Evaporator: 23 December 2014Sub-Cooler: 23 December 2014A copy of this report should be retained in your files to be used for comparison at that time.If you should have any questions concerning this report, or if we may be of further assistance, please feel free to call upon us.

S/N GBCM13330 #2

Data SheetLocation Model Serial Number Date

INDIANA INTERNATIONAL AIRPORT

2500 S. HIGH SCHOOL ROAD

INDIANAPOLIS, IN 46201

YK-S2-R2-J2DH GBCM13330 #2 December 23, 2011

Row Tube Description Area Action Req.

SET UP CALIBRATE & STARTEDCONDENSER 1/2/2012 09:09 am

3 4 ID PIT 40% - 59% B02

8 9 PREVIOUSLY PLUGGED TE


















S/N GBCM13330 #2

Data Sheets - Page 2

Row Tube Description Area Action Req.




CALIBRATION CHECK & COMPLETEDCONDENSER 1/2/2012 12:57 pm

SET UP CALIBRATE & STARTEDEVAPORATOR 12/23/2011 07:49 am

8 33 MISSED EXP, NOMINAL S01

CALIBRATION CHECK & COMPLETEDEVAPORATOR 12/23/2011 11:41 am

SET UP CALIBRATE & STARTEDSUB-COOLER 1/2/2012 12:59 pm


CALIBRATION CHECK & COMPLETEDSUB-COOLER 1/2/2012 01:40 pm

Condenser SectionS/N GBCM13330 #2


Top of Vessel

Row 1,Tube 1 -

P2

Row 5,Tube 1 -

PP

Row 10,Tube 1 - PP

Row 15,Tube 1 -

Row 20,Tube 1 -

PP

PP PP PP PP PPRow 25,Tube 1 - PP

PPPP PP PP PP PP

PP PP PP PP PP

Row 30,Tube 1 -PP

Row 35,Tube 1 -

P2 = ID PIT 40% - 59% REQUIRES ACTIONPP = PREVIOUSLY PLUGGED

Evaporator SectionS/N GBCM13330 #2


Top of Vessel

Row 1,Tube 1 -

Row 5,Tube 1 -

E1

Row 10,Tube 1 -

Row 15,Tube 1 -

Row 20,Tube 1 -

Row 25,Tube 1 -

E1 = MISSED EXP, NOMINAL

Sub-Cooler SectionS/N GBCM13330 #2


Top of Vessel

Row 1-Tube 1

PP

PP = PREVIOUSLY PLUGGED

S/N GBCM13330 #2Test Instrument UsedHighline Automation, EC14

Calibration Page

Tube Type Material Nom Wall Thick End Wall Thick OD Test Type Probe Diameter

Skip Fin IE Copper .028 .052 .750 CROSS/DIFF

Condenser Sub-Cooler

Note: Defects are compared to machined standards. Actual Defect Geometry may differ.

S/N GBCM13330 #2

Condenser Section

NO SIGNIFICANT DEFECTS (Row 1 Tube 1)

S/N GBCM13330 #2

Condenser Section

ID PIT 40% - 59% (Row 3 Tube 4)

S/N GBCM13330 #2

Condenser Section

NOTED ID PITS (Row 8 Tube 10)

S/N GBCM13330 #2

Condenser Section


S/N GBCM13330 #2Test Instrument UsedHighline Automation, EC14

Calibration Page

Tube Type Material Nom Wall Thick End Wall Thick OD Test Type Probe Diameter

Skip Fin IE Copper .028 .042 .750 CROSS/DIFF

Evaporator

Note: Defects are compared to machined standards. Actual Defect Geometry may differ.

S/N GBCM13330 #2

Evaporator Section


S/N GBCM13330 #2

Evaporator Section

MISSED EXP, NOMINAL (Row 8 Tube 33)

S/N GBCM13330 #2

Evaporator Section


S/N GBCM13330 #2

Sub-Cooler Section


Explanation of Abbreviations

Abbreviation Explanation ABN IND Abnormal Indication B Bay FB Freeze Bulge FBH Flat Bottom Hole FM Foreign Material ID Internal Diameter ID CORROSION Internal Diameter, Corrosion ID DEPOSIT Internal Diameter, Deposit ID PIT Internal Diameter, Pit IDML Internal Diameter, Metal Loss IE Internally Enhanced OD Outside Diameter ODML Outside Diameter, Metal Loss ODML@S Outside Diameter Metal Loss at Support OD DEPOSIT Outside Diameter, Deposit PLF Possible Longitudinal Flaw PRF Possible Radial Flaw PSC Possible Stress Corrosion S Support WAS Wear at Support > Greater Than < Less Than OTE Opposite Test End TE Test End

eddy current report · 2017-04-11 · eddy current inspections. the possibility does exist that...

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