Paper 1-IS-35 / A NEW UV SENSOR METHOD FOR SEWER

Prof. Dr. Ulrich Glombitza, Treffen SARTEX– 29. Mai 2009

Paper 1-IS-35 / A NEW UV SENSOR METHOD FOR SEWER RENOVATION Page 1

Prof. Dr. Ulrich Glombitza, Treffen SARTEX– 29. Mai 2009

Paper 1-IS-35 / A NEW UV SENSOR METHOD FOR SEWER RENOVATION Page 2

Paper 3-B-01 / Cured in Place Pipeliners

A New UV Sensor Method for Sewer Renovation

Michael Roeling, Export Manager BKP Berolina Polyester GmbH & Co. KG, Velten, Germany

Prof. Dr. Ulrich Glombitza, Treffen SARTEX– 29. Mai 2009

Paper 1-IS-35 / A NEW UV SENSOR METHOD FOR SEWER RENOVATION Page 3

• UV Curing of CIPP since 1986

• becoming more and more popular within the last 15 years

• good quality control “online” possible

• spectrum used: 350 nm – 450 nm (UVA to visible blue)

Prof. Dr. Ulrich Glombitza, Treffen SARTEX– 29. Mai 2009

Paper 1-IS-35 / A NEW UV SENSOR METHOD FOR SEWER RENOVATION Page 4

Quality Managements steps at the installation site

Data recording with PC

Copyright: BKP

Prof. Dr. Ulrich Glombitza, Treffen SARTEX– 29. Mai 2009

Paper 1-IS-35 / A NEW UV SENSOR METHOD FOR SEWER RENOVATION Page 5

lamp switched off

lamp defect

lamp started

lamp switched on on/off of winch

lamp not activated

Data recording with PC – control mode

Quality Managements steps at the installation site

Copyright: BKP

Prof. Dr. Ulrich Glombitza, Treffen SARTEX– 29. Mai 2009

Paper 1-IS-35 / A NEW UV SENSOR METHOD FOR SEWER RENOVATION Page 6

0

10

20

30

40

50

60

70

28.06.2001 11:02 28.06.2001 11:16 28.06.2001 11:31 28.06.2001 11:45 28.06.2001 12:00 28.06.2001 12:14 28.06.2001 12:28

[cm

/min

]

0

0,1

0,2

0,3

0,4

0,5

0,6

0,7

0,8

[ba

r]

Curing speed [cm/min]

air pressure [bar]

0

20

40

60

80

100

120

140

28.06.2001 11:02 28.06.2001 11:16 28.06.2001 11:31 28.06.2001 11:45 28.06.2001 12:00 28.06.2001 12:14 28.06.2001 12:28

[°C

]

Air temperature [°C]

Laminate temperature 2 [°C]

Laminate temperature 1 [°C]

Data recording with PC – evaluation

Copyright: BKP

Quality Managements steps at the installation site

Prof. Dr. Ulrich Glombitza, Treffen SARTEX– 29. Mai 2009

Paper 1-IS-35 / A NEW UV SENSOR METHOD FOR SEWER RENOVATION Page 7

evaluation process optimization

optical measurement

light source

host pipe

optical sensor

CIPP-Liner

quality proof

Overview: objective

Source: OSSCAD

Prof. Dr. Ulrich Glombitza, Treffen SARTEX– 29. Mai 2009

Paper 1-IS-35 / A NEW UV SENSOR METHOD FOR SEWER RENOVATION Page 8

Principal configuration of UV-light measuring

Transmission measuring: • UV collimation device • optical fiber • wavelength selective receiver

Lateral UV-light launching: • no UV collimation device • special optical fiber • wavelength selective receiver

New: measuring the UV light by lateral launching it into optical fibers!

Source: OSSCAD

spectrometer

transmission measuring

ligh

tlig

ht

spectrometer

transmission measuring

ligh

tlig

ht

ligh

tlig

ht

lateral light launching

spectrometerlight

light

lateral light launching

spectrometerlightlight

lightlight

Prof. Dr. Ulrich Glombitza, Treffen SARTEX– 29. Mai 2009

Paper 1-IS-35 / A NEW UV SENSOR METHOD FOR SEWER RENOVATION Page 9

PE_S: received power with lateral launching PST: stray power related to the interaction length e: Euler‘s constant S: stray coefficient of sensor fiber

A: absorption coefficient of sensor fiber : central wave length of light

S: catch factor AN: numerical aperture l: length of interaction : lateral launch efficiency

Pk: optical power (outer core area) LA: length of sensor fiber

Mathematical model of UV light measuring

Source: OSSCAD

PE_SPST

light

PE_SPST PE_SPST

lightlightAAs

AAs

L

kNSASE

L

STASE

ePlASLP

ePLP

)(2

_

)(2

_

),(

),(

Prof. Dr. Ulrich Glombitza, Treffen SARTEX– 29. Mai 2009

Paper 1-IS-35 / A NEW UV SENSOR METHOD FOR SEWER RENOVATION Page 10

Source: https://www.tu-harburg.de/et3/students/Skripte_ss10/V772.pdf

Spectral attenuation of optical fibers – standard fibers

typical data of

quartz fibers:

for single mode fibers

for multi mode fibers

Composition of a step index fiber

Prof. Dr. Ulrich Glombitza, Treffen SARTEX– 29. Mai 2009

Paper 1-IS-35 / A NEW UV SENSOR METHOD FOR SEWER RENOVATION Page 11

Spectral attenuation behavior of standard fibers

wavelength range: 800nm to 1600nm composition of fiber: Cladding: 125µm, SiO2 – quartz glass

Core: 50µm, Ge-SiO2 – Germanium doped quartz glass Coating: 250µm, UV resistant material

Standard fibers are not usable for measuring UV light!

Spectral attenuation of optical fibers – standard fibers

area of

UV light

area of

UV light

area of

UV light

Source: OSSCAD

Prof. Dr. Ulrich Glombitza, Treffen SARTEX– 29. Mai 2009

Paper 1-IS-35 / A NEW UV SENSOR METHOD FOR SEWER RENOVATION Page 12

Optical characteristics of special fibers – plastic optical fiber (POF)

In comparison with quartz fibers POF have:

higher path attenuation (absorption)

less temperature resistance

POF are not usable for measuring UV light!

Spectral attenuation behavior of POF Attenuation

Wave Length

Attenuation

Wave Length

Source: OSSCAD

Prof. Dr. Ulrich Glombitza, Treffen SARTEX– 29. Mai 2009

Paper 1-IS-35 / A NEW UV SENSOR METHOD FOR SEWER RENOVATION Page 13

Wavelength range: 200nm to 800nm Composition of glass fiber:

Cladding: 220µm, F-SiO2 – Fluorine-doped quartz glass Core: 200µm, SiO2 – quartz glass Coating: 260µm, UV transparent material

Use of a UV transparent coating

Development of a UV resistant fiber with UV transparent coating.

Spectrum used forUV-curing

Spectrum used forUV-curing

Source: OSSCAD

Prof. Dr. Ulrich Glombitza, Treffen SARTEX– 29. Mai 2009

Paper 1-IS-35 / A NEW UV SENSOR METHOD FOR SEWER RENOVATION Page 14

Spectral distribution of UV- light source (mercury vapor lamp):

Spectrum used for

UV-curing

Spectrum used for

UV-curing

Prof. Dr. Ulrich Glombitza, Treffen SARTEX– 29. Mai 2009

Paper 1-IS-35 / A NEW UV SENSOR METHOD FOR SEWER RENOVATION Page 15

15

Laboratory test – test set-up

evaluation

µP

optoelectronic measuring device

TCP/IP

Interface

amplifier

photodiode

Spectrometer

USB

optical fiber connector

20m - UV patch cable

optical fiber connector

Liner sample:

L=50cm (20”), ID=300mm (12”), wall thickness=4.3mm

UV-light source

UVASPOT 400T

L=15-20cm

25cm

µP

optoelectronic measuring device

TCP/IP

Interface

amplifier

photodiodephotodiode

Spectrometer

USB

optical fiber connector

20m - UV patch cable

optical fiber connector

Liner sample:

L=50cm (20”), ID=300mm (12”), wall thickness=4.3mm

UV-light source

UVASPOT 400T

L=15-20cm

25cm

optical fiber connector

20m - UV patch cable

optical fiber connector

Liner sample:

L=50cm (20”), ID=300mm (12”), wall thickness=4.3mm

UV-light source

UVASPOT 400T

L=15-20cm

25cm

optical fiber connector

Liner sample:

L=50cm (20”), ID=300mm (12”), wall thickness=4.3mm

UV-light source

UVASPOT 400T

L=15-20cm

25cm

UV-light source

UVASPOT 400T

L=15-20cm

25cm

L=15-20cm

25cm25cm

Source: OSSCAD

Prof. Dr. Ulrich Glombitza, Treffen SARTEX– 29. Mai 2009

Paper 1-IS-35 / A NEW UV SENSOR METHOD FOR SEWER RENOVATION Page 16

Test with site simulation – test set-up

Prof. Dr. Ulrich Glombitza, Treffen SARTEX– 29. Mai 2009

Paper 1-IS-35 / A NEW UV SENSOR METHOD FOR SEWER RENOVATION Page 17

UV-measuring with UV-filter and automatic amplification

light chain 8 UV-lamps

UV-measuring test: September 30th 2010 length of sensor cable: 1m test 1

Ignition of lamps

All lamps “ON”

Integral transmission curve of

sensor cable as a function of time

Conditions:

- curing speed: 67cm/min

- all 8 UV lamps „On“

- UV lamp (bulb 17cm, center 10cm)

- distance between lamps: 17cm

- length of light chain: 2,48m

Start of

curing process

Liner fully cured

Light chain moves

towards sensor cable

Ignition of lamps

All lamps “ON”

Integral transmission curve of

sensor cable as a function of time

Conditions:

- curing speed: 67cm/min

- all 8 UV lamps „On“

- UV lamp (bulb 17cm, center 10cm)

- distance between lamps: 17cm

- length of light chain: 2,48m

Start of

curing process

Liner fully cured

Light chain moves

towards sensor cable

Prof. Dr. Ulrich Glombitza, Treffen SARTEX– 29. Mai 2009

Paper 1-IS-35 / A NEW UV SENSOR METHOD FOR SEWER RENOVATION Page 18

UV-measuring with UV-filter and automatic amplification

light chain with lamps 1+2 and 7+8 only

UV-measuring test: September 30th 2010 length of sensor cable: 1m test 2

Start of curing process when

UV lamps 1+2 pass by

Liner fully cured after

passage of UV lamps 7+8

Integral transmission curve of

sensor cable as a function of time

Conditions:

- curing speed: 33cm/min

-UV lamps 1+2+7+8 „On“

- UV lamp (bulb 17cm, center 10cm)

- distance between lamps: 17cm

- length of light chain: 2,48m

Start of curing process when

UV lamps 1+2 pass by

Liner fully cured after

passage of UV lamps 7+8

Integral transmission curve of

sensor cable as a function of time

Conditions:

- curing speed: 33cm/min

-UV lamps 1+2+7+8 „On“

- UV lamp (bulb 17cm, center 10cm)

- distance between lamps: 17cm

- length of light chain: 2,48m

Prof. Dr. Ulrich Glombitza, Treffen SARTEX– 29. Mai 2009

Paper 1-IS-35 / A NEW UV SENSOR METHOD FOR SEWER RENOVATION Page 19

Laboratory test – sample for calibration

Prof. Dr. Ulrich Glombitza, Treffen SARTEX– 29. Mai 2009

Paper 1-IS-35 / A NEW UV SENSOR METHOD FOR SEWER RENOVATION Page 20

Laboratory test – sample for calibration

Prof. Dr. Ulrich Glombitza, Treffen SARTEX– 29. Mai 2009

Paper 1-IS-35 / A NEW UV SENSOR METHOD FOR SEWER RENOVATION Page 21

Thank You For Your Attention!

BKP Berolina Polyester GmbH & Co. KG

Heidering 28

16727 Velten

Germany

Phone: +49 (3304) 20 88 - 100

Fax: +49 (3304) 20 88 - 110

e-mail: info@bkp-berolina.de

Web: www.bkp-berolina.de