Experiment: Ng Research Group_20161209_ALPHA-PINENE_Nitrate radical_Ammonium sulfate_dry
Experiment
Name: Ng Research Group_20161209_ALPHA-PINENE_Nitrate radical_Ammonium sulfate_dry
Date: 2016-12-09
Organization
Ng Research Group
Chamber
Georgia Tech Environmental Chamber (Far)
Experiment Set
Monoterpene ON_Takeuchi
Goals
To characterize particulate organic nitrate generated from NO3 oxidation of a-pinene and understand its hydrolysis process
Summary
SOA including particulate organic nitrate formed by 12 ppb of a-pinene injected as precursor VOC and 27 ppb N2O5 injected as oxidant precursor.
Additional Notes
Used to compare with the same experiment but in humid conditionExperiment Details
Categories:
- Condensed-phase chemical reaction
- Aerosol formation
Relative Humidity: 2 - 3
Seeded Experiment: Yes
Type of Seed: Ammonium sulfate
Initial Seed Concentration Value: 11860500000
Seed Concentration Units: particles_per_cubic_meter
Fuchs Adjusted Surface Area:
Condensation sink rate coefficient: 2 - 3
Reaction type:
Oxidant Name: Nitrate radical
Initial Oxidant Concentration Value: 27 (parts_per_billion)
RO2 Main Fate: NO3
RO2 Lifetime: (Seconds)
Pressure:
Data Sets
Data Set plots
Experiment Set Details
Name: Monoterpene ON_Takeuchi
Time format and units: Time is either ET or in min
Description:
To characterize particulate organic nitrate generated from photooxidation and NO3 oxidation of a-pinene and b-pinene and to understand its hydrolysis process.
Collaborators:
- Masayuki Takeuchi
Contacts
Principal investigator:
Nga (Sally) Lee Ng
E-mail: ng@chbe.gatech.edu
OrcID: 0000-0001-8460-4765
Data Manager:
Taekyu Joo
Phone: (404) 385-2149
E-mail: tjoo6@gatech.edu
Reactant
Reactant | Compound type | Concentration | Concentration units |
---|---|---|---|
ALPHA-PINENE (319064711) |
|
12 | Parts Per Billion |
20161209_TimeLine.csv
Timeline
Time (ET) | Action |
9:34 | AMS on filter |
9:36 | SMPS on |
10:00 | RHT/NOx/O3/CAPS on |
10:01 | AMS on chamber |
11:10 | Seed injection starts |
11:20 | Seed injection ends |
11:30 | N2O5 injection starts |
11:34 | N2O5 injection ends |
12:00 | VOC injection starts |
12:10 | VOC injection ends |
16:00 | RHT/NOx/O3/CAPS off |
16:00 | AMS off |
16:00 | SMPS off |
Citations
Characterizations
(None)
Particle Loss Characterizations:
(None)
Vapor Loss Characterizations:
(None)
Chamber Details
Name: Georgia Tech Environmental Chamber (Far)
Volume in cubic meters: 12.6
Shape:
Surface area in cubic meters: 32.48865
Flow Mode: Batch
Flow through rate in liters per minute:
Body Material: Teflon
Body thickness:
Replacement date: 2017-02-07
Replacement frequency: As needed
Cleaning method:
Flushing with air
Flushing with air with UV lights on
o3 background: 3
nox background: 1
Particle background in micrograms per cubic meter:
Air filtration method: Pure air generator with membrane filter dryer
Mixing method: 0
Mixing method material:
Temparature Control: Yes
Temparature measurements recorded: Yes
Temparature range (min degrees celcius): 4
Temparature range (max degrees celcius): 40
Humidity Control: Yes
Humidity Measurements Recorded: Yes
Relative humidity range (min percent): 2
Relative humidity range (max percent): 70
Particle experiment capability: 1
Lights: Yes
Light source type(s):
UVA Black Lamps, Natural Sunlight
Supplemental information:
Additional Notes: