Topas Blow-By Measurement Hardware

BA, Topas GmbH

Crankcase Ventilation

In-line Measurement of Oil Aerosols

Measurement Hardware for

Blow-By Oil Separation

Colin Jenkins – General Manager - Adaptive Instruments Ltd

Cambridge Particle Meeting 18th May 2012

Topas Blow-By Measurement Hardware

BA, Topas GmbH

Copyright © 2011 Topas GmbH

Adaptive Instruments:

Topas Blow-By Measurement Hardware

BA, Topas GmbH

Absolute Filter GMS141 (for Gravimetric Analysis)

Photometer PAP 610 / 612 (for Optical Measurement)

Content

Topas Blow-By Measurement Hardware

BA, Topas GmbH

State of the Art of Benchmarking

Oil Mist Separators

Laboratory

Disadvantages

- Low Time Resolution

- Expensive Cost to Value Ratio

- Possibility of Particle Changes during Storing

- High Filtration Efficiency -> Long Period of Measurement Time -> High Operational Expense

- Gravimetric Measurement

- Fractional Efficiency Measurement

Engine

- Gravimetric Measurement

- Accompanying Measures in Laboratory

Topas Blow-By Measurement Hardware

BA, Topas GmbH

Gravimetric Analysis

Optical Measurement

System

Advancement / Improvement

Combination of Extinction Measurement and

Gravimetric Analysis

Influence

Basic

Conditio

ns

Topas Blow-By Measurement Hardware

BA, Topas GmbH

measurement

equipment

GMS141

PAP610

PAP612

SPT140

Product Development

Gravimetric 0 Optical Test Stand

Topas Blow-By Measurement Hardware

BA, Topas GmbH

GMS141 (Gravimetric Measurement System)

- 2 Types of Test Filter useable

- Filter Cartridge

- Blank Filter (d=110mm)

- heatable Test Filter Box

- Two independent Sections: Bypass / Measuring

- Differential Pressure Measurement Test Filter

- Temperature, pressure and volume flow

Measurement of blow-by

- Manually or automatic operated Valve Controlling

- Automatic: Controlling by Time / Differential

Pressure

- Device Control with SPS by Web Browser

Topas Blow-By Measurement Hardware

BA, Topas GmbH

GMS 141

Process Diagram

T

Heatable Bypass

Section

Measurement

Section

Valve

Filter

dp p

Topas Blow-By Measurement Hardware

BA, Topas GmbH

VolllastTeillast

Nulllast

n = 4000 min-1

n = 3000 min-1

n = 2000 min-1

0

0,5

1

1,5

2

2,5

3

mp

[g

/h]

Engine

Frequency

Engine Load

GMS 141

Example Measurement Static Nodes

source: DA, BA, Mahle GmbH

Oil

Ma

ss

Flo

w

Dynamic Range

Topas Blow-By Measurement Hardware

BA, Topas GmbH

PAP 610 (Process Aerosol Photometer)

Measurement

Range of

Concentration

Approx. 0.1 ... 3 g/m³

Droplet Size

Range

Approx. 0.1 ... 1.5 µm

Extinction length 300

Temperature 110°C (adjustable)

Wave Length 470 to 875 nm

Specifications

Topas Blow-By Measurement Hardware

BA, Topas GmbH

Photometer

Software: PAPWin

Topas Blow-By Measurement Hardware

BA, Topas GmbH

PAP 610

Measurement Data (Photometer Signal) – adjustable Nozzle Pre-Pressure

(gravimetric)

R² = 0,9994

R² = 0,9997

0

0,2

0,4

0,6

0,8

1

1,2

0,000 0,100 0,200 0,300 0,400 0,500 0,600

Ex

tin

kti

on

Konzentration [g/m³]

Red

Ir

Linear (Red)

Linear (Ir)

1,2 g/h 1,49 g/h

1,75 g/h 2,02 g/h

2,31 g/h 2,89 g/h

3,24 g/h

Concentration [g/m³]

Ex

tin

cti

on

[1

]

Topas Blow-By Measurement Hardware

BA, Topas GmbH

Engine Measurement

0

10

20

30

40

50

60

70

0 100 200 300 400 500 600 700

Trü

bu

ng

[T

E/F

]

Zeit t [s]

n = 2000 min-1

n = 4000 min-1

(MB4/5; 0-40/20 TE/F; n = 2000 / 4000 min-1; Md = Volllast (350 / 270 Nm)) n1 [rpm]

n2 [rpm]

Dynamic Test, switching between two Engine Frequency

oil

co

nc

en

tra

tio

n

Time Source: DA, BA, Mahle GmbH

Topas Blow-By Measurement Hardware

BA, Topas GmbH

PAP 610

Extinction Ratio of 4 Wave Length for Spherical Oil Particle (calculated)

source: Fa. Mahle Gmbh, Dr. Sauter,

Aachener Motorenkolloquium

Droplet Size Distributions of

Reciprocating Engines

0

1

2

3

4

5

6

100 1000 10000

Ex

-Ve

rhä

ltn

is

Partiklegröße [nm]

mp=1.46, monodispers

670 nm / 830 nm

470 nm / 875 nm

Particle Size [nm]

Ex

tin

cti

on

Ra

tio

[1

]

polysemy

relevant range of particle

size

Topas Blow-By Measurement Hardware

BA, Topas GmbH

PAP 610

Example Filter Measurement on Engine Test Stand

Measurement Period Filter

Time Source: Fa. Mahle Gmbh, Dr. Sauter,

Test Report

Tra

nsm

issio

n / G

ravim

etr

ic

Ma

ss C

on

ce

ntr

ati

on

Topas Blow-By Measurement Hardware

BA, Topas GmbH

Copyright © 2010 Topas GmbH

PAP 612 (Process Aerosol Photometer)

- Scattered Light Arrangement

(Measurement Angle 90°)

- Extinction Measurement

- Wall Film Detection

-2 Wave Length

(estimate of Particle Size)

- Compact Dimensions

Topas Blow-By Measurement Hardware

BA, Topas GmbH

Assembly

Detector 3

LED1

LED3

Detector 1

Detector 3

LED2

LED4

Detector 1

Topas Blow-By Measurement Hardware

BA, Topas GmbH

PAP 612

R² = 0,9983

R² = 0,9926

0

0,2

0,4

0,6

0,8

1

0

0,05

0,1

0,15

0,2

0,25

0 1 2 3 4 5

Gravimetric Concentration

[g/m³]

Ex

tin

cti

on

[1

]

Scatt

eri

ng

[1

]

Topas Blow-By Measurement Hardware

BA, Topas GmbH

PAP 612

Topas Blow-By Measurement Hardware

BA, Topas GmbH

PAP 612

0

0,1

0,2

0,3

0,4

0,5

0,6

0,7

0,8

0,9

1

0

0,5

1

1,5

2

2,5

11:52 11:54 11:55 11:57 11:58 12:00 12:01 12:02 12:04 12:05

Scattering

Sc-1

Sc-2

Extinction

Ex-1

Ex-2

WF

Topas Blow-By Measurement Hardware

BA, Topas GmbH

Topas Blow-By Measurement Hardware

BA, Topas GmbH

Topas Blow-By Measurement Hardware

BA, Topas GmbH

Thank you for your attention

Copyright © 2011 Topas GmbH