Experiment: Ng Research Group_20160325_ALPHA-PINENE_Hydroxyl radical_Ammonium sulfate_36%RH

Experiment

Name: Ng Research Group_20160325_ALPHA-PINENE_Hydroxyl radical_Ammonium sulfate_36%RH
Date: 2016-03-25

Organization
Ng Research Group

Chamber
Georgia Tech Environmental Chamber (Near)

Experiment Set
AP+OH_Chen

Goals
Generate SOA for health study.

Summary
AP+H2O2, photooxidation under humid condition.

Experiment Details

Categories:

  • Aerosol formation
Temperature: 24-27
Relative Humidity: 40-32
Seeded Experiment: Yes
Type of Seed: Ammonium sulfate
Initial Seed Concentration Value: 20861
Seed Concentration Units: particles_per_cubic_meter
Fuchs Adjusted Surface Area:
Condensation sink rate coefficient: 40-32
Reaction type:
Oxidant Name: Hydroxyl radical
Initial Oxidant Concentration Value: ~1e6 (molecules_per_cubic_centimeter)
RO2 Main Fate: HO2
RO2 Lifetime: (Seconds)
Pressure:

Data Sets

ID Instrument File  
1691 AMS (Near, mass spec) 20160325_AP_humid_AMS_MassSpec.csv
2696 SMPS (near, number) 20160325_AP_humid_SMPS_Number.csv
2697 SMPS (near, volume) 20160325_AP_humid_SMPS_Volume.csv
3678 AMS (Near, time series) 20160325_AP_humid_AMS_time.csv

Data Set plots
Choose a file: Choose the X-Axis:

Experiment Set Details

Name: AP+OH_Chen
Time format and units: Eastern time
Description:
a-pinene photooxidation under low-NO & high-NO, dry & humid conditions

Collaborators:

Download

Download this Experiment (71.95 KB)

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)
  • Alkene
 334 Parts Per Billion

20160325_AP_humid_TimeLine.csv Timeline

Time (America/ET) Action
10:36 SMPS on
11:15 AMS on filter
11:42 AMS on chamber
11:44 Seed injection starts
12:04 Seed injection ends
12:22 VOC injection starts
12:32 VOC injection ends
12:32 H2O2 injection starts
12:49 H2O2 injection ends
12:49 UV on
14:50 Filter starts
17:04 Filter ends
17:07 AMS/SMPS off

Citations
Cite this experiment: Publications associated with this experiment:

Characterizations
Light Flux Characterizations:
(None)
Particle Loss Characterizations:
(None)
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: