Experiment: UCR-CECERT-APL-Cocker Group_20161009_NOx/SOA Surrogate/H2O2_Hydroxyl radical_No Seed_EPA2260B - Weihua
Experiment
Name: UCR-CECERT-APL-Cocker Group_20161009_NOx/SOA Surrogate/H2O2_Hydroxyl radical_No Seed_EPA2260B - Weihua
Date: 2016-10-09
Organization
UCR-CECERT-APL-Cocker Group
Chamber
EPA chamber
Experiment Set
Weihua Li Experiments
Goals
Diesel photo-oxidation under NOx and SOA surrogate -- Control
Summary
1.1ppmc surrogate +25ppb NOx +1ppmc H2O2 INSTRUMENTS: AMS, SMPS, GC1
Additional Notes
GC1 was not working until 10:44 AM, did not get the first point.Experiment Details
Categories:
- Photolysis, any phase
- Blank/Control
Relative Humidity: 0.01
Seeded Experiment: No
Fuchs Adjusted Surface Area:
Condensation sink rate coefficient: 0.01
Reaction type:
Oxidant Name: Hydroxyl radical
Initial Oxidant Concentration Value: N/A (molecules_per_cubic_centimeter)
RO2 Main Fate: NO
RO2 Lifetime: (Seconds)
Pressure: 0.015'' H2O
Data Sets
ID | Instrument | File | |
---|---|---|---|
2794 | SMPS |
EPA2260B_SMPS.csv
|
|
2795 | SMPS - SizeD |
EPA2260B_SizeD.csv
|
|
2796 | NOx Box |
EPA2260B_NOx.csv
|
|
2797 | Ozone Box |
EPA2260B_O3.csv
|
|
2798 | TC |
EPA2260B_Temperature.csv
|
Data Set plots
Experiment Set Details
Name: Weihua Li Experiments
Time format and units: Time format in timeline is the absolute local time.
Description:
Previous student experiments -- Weihua Li
Collaborators:
- Weihua Li
Contacts
Principal investigator:
David Cocker
E-mail: dcocker@engr.ucr.edu
Data Manager:
Chen Le
Phone: 9516603455
E-mail: cle030@ucr.edu
Reactants
Reactant | Compound type | Concentration | Concentration units |
---|---|---|---|
NOx |
|
25 | Parts Per Billion |
SOA Surrogate | 1.1 | Parts Per Million | |
H2O2 | 1 | Parts Per Million |
20161009_EPA2260_TimeLine.csv
Timeline
Time (America/Los_Angeles) | Action |
7:27 | NO span starts; flow 2|20|off|35.0 |
7:39 | NO 67.87; NOx 69.82; CO 15.87; GPT span starts; flow 2|20|0.7|35 |
7:44 | NO 47.85; NOx 68.85; CO 15.87; O3 span starts; flow 2|20|0.7|off |
7:59 | O3 33.94; Starting E--W--Z sampling |
8:20 | Fill air off; Air Handlers on; Heaters on; Chiller #1 on |
8:22 | Inject NO 8.566 - 0.023 torr (253cc) into both bags |
8:22 | Inject NO2 5.172 - 0.023 torr (253cc) into both bags |
8:23 | Inject 100 uL PFH into both bags |
8:24 | Inect 66 uL liquid surrogate into both bags |
8:26 | Inject 15 uL acetaldehyde into both bags |
8:32 | Inject gas phase surrogate @500 to both bag bag for 4:42 min |
8:44 | Inject 400 uL H2O2 into both bag |
9:04 | Mix W-E bag for 8 mins |
9:13 | Close valve 14 |
10:14 | Internally mix W bag for 1 min |
10:16 | Heaters off; Blacklights on; Elevators on |
10:21 | Elevator program deltaP = 0.018'' |
17:16 | End of experiment |
Citations
Characterizations
(None)
Particle Loss Characterizations:
(None)
Vapor Loss Characterizations:
(None)
Chamber Details
Name: EPA chamber
Volume in cubic meters: 84.2
Shape: Rectangular Prism
Surface area in cubic meters: 126
Flow Mode: Batch
Flow through rate in liters per minute:
Body Material: Teflon
Body thickness: 2
Replacement date: 2017-11-07
Replacement frequency: As needed
Cleaning method:
Flushing with air
Flushing with air with UV lights on
Oxidation
Wipe with ultra-pure water if needed
o3 background: 10
nox background: 0
Particle background in micrograms per cubic meter: 0
Air filtration method: The chamber is using zero air from our air purification system
Mixing method: 0
Mixing method material:
Temparature Control: Yes
Temparature measurements recorded: Yes
Temparature range (min degrees celcius): 5
Temparature range (max degrees celcius): 45
Humidity Control: Yes
Humidity Measurements Recorded: Yes
Relative humidity range (min percent): 0.01
Relative humidity range (max percent): 80
Particle experiment capability: 1
Lights: Yes
Light source type(s):
350nm UVA Black Lamps
Supplemental information:
Additional Notes: