Experiment: UCR-CECERT-APL-Cocker Group_20161011_NOx/Diesel(Shell)/SOA Surrogate/H2O2_Hydroxyl radical_No Seed_EPA2262A - Weihua
Experiment
Name: UCR-CECERT-APL-Cocker Group_20161011_NOx/Diesel(Shell)/SOA Surrogate/H2O2_Hydroxyl radical_No Seed_EPA2262A - Weihua
Date: 2016-10-11
Organization
UCR-CECERT-APL-Cocker Group
Chamber
EPA chamber
Experiment Set
Weihua Li Experiments
Goals
Diesel photo-oxidation under NOx and SOA surrogate
Summary
1.1ppmc surrogate +12.5ppb NOx +150ul (shell) diesel+1ppmc H2O2 INSTRUMENTS: AMS, SMPS, GC1, HTDMA, VTDMAExperiment Details
Categories:
- Photolysis, any phase
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 | |
---|---|---|---|
2811 | VTDMA |
EPA2262A_VTDMA.csv
|
|
2812 | SMPS |
EPA2262A_SMPS.csv
|
|
2813 | Ozone Box |
EPA2262A_O3.csv
|
|
2814 | NOx Box |
EPA2262A_NOx.csv
|
|
2815 | SMPS - SizeD |
EPA2262A_SizeD.csv
|
|
2816 | TC |
EPA2262A_Temperature.csv
|
|
2817 | HTDMA |
EPA2262A_HTDMA.csv
|
|
2818 | Licor |
EPA2262A_Licor.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 |
|
12.5 | Parts Per Billion |
Diesel(Shell) | 9999 | Microgram Per Cubic Meter | |
SOA Surrogate | 1.1 | Parts Per Million | |
H2O2 | 1 | Parts Per Million |
20161011_EPA2262_TimeLine.csv
Timeline
Time (America/Los_Angeles) | Action |
7:42 | NO span starts; flow 2|20|off|35 |
7:58 | NO 67.96; NOx 64.45; CO 15.19; GPT span starts; flow 2|20|0.7|35 |
8:13 | NO 64.43; NOx 44.92; CO 15.28; O3 span starts; flow 2|20|0.7|off |
8:20 | Fill air off; Air Handlers on; Heaters on; Chiller #1 on |
8:22 | Inject 100 uL PFH into both bags |
8:23 | Inject NO 4.29 - 0.03 torr (253cc) into both bags |
8:23 | Inject NO2 2.569 - 0.023 torr (253cc) into both bags |
8:25 | Inject 66 uL liquid surrogate into both bags |
8:26 | Inject 15 uL acetaldehyde into both bags |
8:29 | O3 31.79; Starting E--W--Z sampling |
8:33 | Inject gas phase surrogate @500 to both bag for 4:42 min |
8:47 | Inject 400 uL H2O2 into both bag |
9:07 | Mix W-E bag for 8 mins |
9:16 | Close valve 14 |
9:17 | Inject 150 uL diesel into W bag @40 V 60~70 C |
9:18 | Internally mix W bag for 1 min |
11:08 | Heaters off; Blacklights on; Elevators on |
11:09 | Elevator program deltaP = 0.015 |
17:46 | 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: