Nanoparticle Behaviour In Combustion Processes · 2018. 3. 9. · Nadine Teuscher, Werner Baumann,...
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KIT – The Research University in the Helmholtz Association 100 1000 10 2000 0 1x10 5 2x10 5 3x10 5 4x10 5 5x10 5 6x10 5 1200 °C 1400 °C 1500 °C 1 g/l CeO 2 in deionized water dry air Number size distribution dN/dlogd ME (cm -3 ) Mobility diameter d ME (nm) 100 1000 10 2000 0 1x10 5 2x10 5 3x10 5 4x10 5 5x10 5 6x10 5 1200 °C 1400 °C 1500 °C Number size distribution dN/dlogd ME (cm -3 ) Mobility diameter d ME (nm) 1 g/l CeO 2 in deionized water 13 Vol.-% water in air EMR / RU4 Feedstocks and Processes of the Future Carbon Cycle Nanoparticle Behaviour In Combustion Processes Objectives Challenges Cooperation Nadine Teuscher, Werner Baumann, Manuela Hauser, Hanns-Rudolf Paur, Dieter Stapf Formation of a new particle peak in dependence of temperature Characterization of nanoparticle behaviour in combustion environments Implementing a laboratory set up to investigate particle behaviour during combustion Selection of a suitable burner type Selection of a suitable furnace type Adaption of measurement techniques to high temperature processes Aerosol sampling in high temperature conditions Laboratory set up Suspension Atomization 50 nm Humidity is a key parameter for the formation of a new particle peak at high temperature Yon, J., Ouf, F.-X., Hebert, D., Mitchell, J.B., Teuscher, N., Le Garrec, J.-L., Bescond, A., Baumann, W., Ourdani, D., Bizien, T., and Perez, J. (2018). Combustion and Flame, 190, pp. 441–453. Teuscher, N., Baumann, W., Hauser, M., Paur, H.-R., and Stapf, D. (2016). European Aerosol Conference. Tours, France, September 2016. References Furnace – Dry Air Furnace – Humid Air Measurements: Electrical Low Pressure Impactor Scanning Mobility Particle Sizer Transmission Electron Microscopy 10 100 5 500 2.0x10 5 4.0x10 5 6.0x10 5 8.0x10 5 1.0x10 6 1.2x10 6 v cold = 8 cm/s v cold = 10 cm/s v cold = 12 cm/s v cold = 14 cm/s 4 g/l CeO 2 in deionized water = 1.0 HaB = 430 mm Number size distribution dN/dlogd ME (cm -3 ) Mobility diameter d ME (nm) 6 8 10 12 14 16 1000 1100 1200 1300 1400 1500 1600 measurement correction for radiation losses = 1.0 average values over the burner surface at HaB = 15 mm temperature (°C) v cold (cm/s) McKenna burner With flame Without flame 250 nm Dry Air 1500 °C 250 nm Humid Air 1500 °C 10 100 5 500 1x10 4 2x10 4 3x10 4 4x10 4 5x10 4
Transcript of Nanoparticle Behaviour In Combustion Processes · 2018. 3. 9. · Nadine Teuscher, Werner Baumann,...
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KIT – The Research University in the Helmholtz Association
100 100010 20000
1x105
2x105
3x105
4x105
5x105
6x105 1200 °C 1400 °C 1500 °C
1 g/l CeO2 in deionized water
dry air
Num
ber s
ize
dist
ribut
ion
dN/d
logd
ME
(cm
-3)
Mobility diameter dME (nm)100 100010 2000
0
1x105
2x105
3x105
4x105
5x105
6x105
1200 °C 1400 °C 1500 °C
Num
ber s
ize
dist
ribut
ion
dN/d
logd
ME
(cm
-3)
Mobility diameter dME (nm)
1 g/l CeO2 in deionized water
13 Vol.-% water in air
EMR / RU4 Feedstocks and Processes of the Future Carbon Cycle
Nanoparticle Behaviour In Combustion Processes
Objectives
Challenges
Cooperation
Nadine Teuscher, Werner Baumann, Manuela Hauser, Hanns-Rudolf Paur, Dieter Stapf
Formation of a new particle peak in dependence of temperature
Characterization of nanoparticle behaviour in combustion environments
Implementing a laboratory set up to investigate particle behaviour during combustion Selection of a suitable burner type Selection of a suitable furnace type
Adaption of measurement techniques to high temperature processes
Aerosol sampling in high temperature conditions
Laboratory set up
Suspension Atomization
50 nm
Humidity is a key parameter for the formation of a new particle peak at high temperature
Yon, J., Ouf, F.-X., Hebert, D., Mitchell, J.B., Teuscher, N., Le Garrec, J.-L., Bescond, A., Baumann, W., Ourdani, D., Bizien, T., and Perez, J. (2018). Combustion and Flame, 190, pp. 441–453.
Teuscher, N., Baumann, W., Hauser, M., Paur, H.-R., and Stapf, D. (2016). European Aerosol Conference. Tours, France, September 2016.
References
Furnace – Dry Air Furnace – Humid Air
Measurements: Electrical Low Pressure Impactor Scanning Mobility Particle Sizer Transmission Electron Microscopy
10 1005 500
2.0x105
4.0x105
6.0x105
8.0x105
1.0x106
1.2x106 vcold = 8 cm/s vcold = 10 cm/s vcold = 12 cm/s vcold = 14 cm/s
4 g/l CeO2 in deionized water = 1.0HaB = 430 mm
Num
ber s
ize
dist
ribut
ion
dN/d
logd
ME
(cm
-3)
Mobility diameter dME (nm)6 8 10 12 14 16
1000
1100
1200
1300
1400
1500
1600 measurement correction for radiation losses
= 1.0average values over the burner surface at HaB = 15 mm
tem
pera
ture
(°C
)
vcold (cm/s)
McKenna burner
With flame
Without flame
250 nm
Dry Air
1500 °C
250 nmHumid
Air
1500 °C
10 1005 500
1x104
2x104
3x104
4x104
5x104
