Experiment: Ng Research Group_20210318_3-Methylfuran_Hydroxyl radical_Ammonium sulfate
Experiment
Name: Ng Research Group_20210318_3-Methylfuran_Hydroxyl radical_Ammonium sulfate
Date: 2021-03-18
Organization
Ng Research Group
Chamber
Georgia Tech Environmental Chamber (Near)
Experiment Set
Furans+OH_BrC_Joo
Goals
To investigate SOA and secondary brown carbon formation
Summary
3-methylfuran was oxidized via OH in the presence of AS seed and NOx. HONO was used for the OH source.Experiment Details
Categories:
- Gas phase chemical reaction
- Multiphase chemical reaction
- Aerosol formation
Relative Humidity: 5
Seeded Experiment: Yes
Type of Seed: Ammonium sulfate
Initial Seed Concentration Value: 23372.55
Seed Concentration Units: particles_per_cubic_meter
Fuchs Adjusted Surface Area:
Condensation sink rate coefficient: 5
Reaction type:
Oxidant Name: Hydroxyl radical
Initial Oxidant Concentration Value: NA (parts_per_billion)
RO2 Main Fate: NO
RO2 Lifetime: (Seconds)
Pressure:
Data Set plots
Experiment Set Details
Name: Furans+OH_BrC_Joo
Time format and units: Elapsed time or EST/EDT
Description:
Furans (furfural, 2-methylfuran, 3-methylfuran) photooxidation experiments to investigate SOA and BrC formation. For the LC-MS & Light absorption data, please reach out to the author.
Collaborators:
- Jo Machesky Yale University
- Tori Hass-Mitchell Yale University
- Linghan Zeng Georgia Institute of Technology
- Rodney Weber Georgia Institute of Technology
- Drew Gentner Yale University
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 |
|---|---|---|---|
| 3-Methylfuran (13587) |
|
629 | Parts Per Billion |
20210318_MF3_dry_TimeLine.csv
Timeline
| Time (America/Los_Angeles) | Action |
| 10:00 | GC on |
| 10:00 | RHT/NOx/O3 on |
| 10:48 | AMS on filter |
| 11:13 | AMS on chamber |
| 10:00 | SMPS on |
| 12:15 | CIMS on |
| 13:58 | Oxidant injection starts |
| 14:08 | Oxidant injection ends (HONO, NO: 423 ppb, NO2: 523 ppb) |
| 13:46 | VOC injection starts (VOC compound is 3-methylfuran) |
| 14:05 | VOC injection ends (VOC concentration is 629 ppb) |
| 13:36 | Seed injection starts |
| 13:56 | Seed injection ends (seed concentration is... ) |
| 14:08 | Time background starts |
| 15:15 | Lights on |
| 18:40 | Lights off |
| 18:40 | GC off |
| 18:40 | RHT/Nox/O3 off |
| 18:40 | AMS off |
| 18:40 | DMA off |
| 18:40 | CIMS off |
Characterizations
2020-07-28 (#35)
Particle Loss Characterizations:
2021-02-18 (#40)
Vapor Loss Characterizations:
(None)
Chamber Details
Name: Georgia Tech Environmental Chamber (Near)
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: