GRIMM Aerosol Technik Existing technologies and improvements Environmental Measurement Instruments by Eng. Wolfgang Brunnhuber.

GRIMMGRIMM Aerosol TechnikAerosol Technik

Existing technologies and improvementsExisting technologies and improvements

Environmental MeasurementEnvironmental MeasurementInstrumentsInstruments

by Eng. Wolfgang Brunnhuber

General features

WRAS Systems

Mobile Systems

Stationary Systems

MAIN FEATURES

* 31 channel size distribution

* Different measurements simultaneously

* No probe heating only dehuminifiaction

* No loss of Semi-Volatile compounds

* Chemical specification possible

* Gas analyses possible

ENVIRONMENTAL

#107 Portable Dust Monitor

Small and portable solution for dust measurment in outdoor areas

with PTFE Filter chamber

with glas bottle and filter

#165 Weather Housing

* Includes #107 * Fiber glas case* temperature sensor* Humidity sensor* Optional Rain sensor* Optional Wind sensor* 47mm PTFE Filter* Gas analyses possible

Monitor

Sample Pipe

Dryer

HumidityTemperature

Sensor

Reserve

#165 main parts

F ie ld h o u s in g 1 . 1 6 5

1 . 1 0 7

Operating PrincipleOperating Principle

DEHUMIDIFICATION EDM165

Photo von

EnvironmentCanada, Ontario

#365 Mobile Dust Monitor Grimm

* Stainless steal housing * Long term measurement* temperature sensor* Humidity sensor* Optional Rain sensor* Optional Wind sensor* 47mm PTFE Filter

possible* Gas analyses possible

Stationary Systems

#180 stationary ambient monitor

EN12341 certified * Certified for PM10

according to EN12341* 19zoll rack mount* Special NAFION

dehumidification system

* GESYTEC MODE for networks

* Long time measurement

* Very low TCO‘s

Sampling pipe with Nafion tube

Nafion - The Perfect Drying Material

Nafion is a copolymer of tetrafluoroethylene (Teflon®). Like Teflon, Nafion is highly resistant to chemical attack, but the presence of its exposed sulfonic acid groups confers unusual properties. Sulfonic acid has a very high water-of-hydration, absorbing 13 molecules of water for every sulfonic acid group in the polymer; consequently, Nafion absorbs 22% by weight of water.

Unlike micro-porous membrane permeation, which transfers water through a relatively slow diffusion process, Nafion removes water by absorption as water-of-hydration. This absorption occurs as a First Order Kinetic reaction, so equilibrium is reached very quickly (typically with in milliseconds). Because this is a specific chemical reaction with water, gases being dried or processed are usually entirely unaffected.

Jorge Anjos

GRIMM # 190Aerosol Spectrometer

Counts with 31 Size Channelsor

Fine Dust Monitor with the same

specifications as the #180

19” Stationary Dust Monitor / Size Distribution

#265 semi volutile compounds

*specification of the semi volutile sompounds in ambient air

* Stainless steal housing * Long term measurement* temperature sensor* Humidity sensor* Optional Rain sensor* Optional Wind sensor* 47mm PTFE Filter

possible* Gas analyses possible

Data from the E-SVC

E-SVC Heater: 100°C, Intervall 20 min Ein / 40 min Aus

0

5

10

15

20

25

30

35

40

07:1

3

07:3

9

08:0

5

08:3

1

08:5

7

09:2

3

09:4

9

10:1

5

10:4

1

11:0

7

11:3

3

11:5

9

12:2

5

12:5

1

13:1

7

13:4

3

14:0

9

14:3

5

15:0

1

15:2

7

µg/m

³

0

20

40

60

80

100

120

°C

PM-10

PM-2.5

Heater

System Integration of GRIMM

ENVIRONcheck

Installation examples

of „STAND-ALONE“

GRIMM ENVIRONcheck

ENVIRONMENTAL DATA IN REAL TIME

PM-10 and PM-2.5 values at the same time with one unitParticle Concentration in 15 (or 31) Channels continuous

Mobile Systems

WRAS Systems

Stationary Systems

SVC Systems

Wide Range Aerosol Spectrometer

E-WRAS

Combination of the size distribution from a SMPS and a Spectrometer

SMPS: 3 nm ... 300 nm, 44 channels

Spectrometer: 0.25 µm...30 µm, 31 channels

E-WRAS:

•Range from 3 nm to 30.000nm (30 µm)

•75 different channels

19“ Rack-mounted E-WRAS

Sample pipe

Spectrometer #190

19“ CPC + DMA

#565 environmental WIDE RANGE

* Count distribution from 5nm up to 31µm

* 72 channels* Stainless steal housing * Long term measurement* temperature sensor* Humidity sensor* Optional Rain sensor* Optional Wind sensor

Combined Size Distribution

SVC-Semi-Volatile Compounds

Particles in the ambient air consist of

• solid and

• semi-volatile components.

Semi-volatile compounds make up 20% to 50% of the PM2.5

Common samplers are losing semi-volatiles due to the ongoing sampling from the filter or by heating the sample probe to prevent condensation.

Result:

most measurements are underestimated.