Experiment: UCR-CECERT-APL-Cocker Group_20161120_None_Ammonium sulfate_EPA2283A - Weihan

Experiment

Name: UCR-CECERT-APL-Cocker Group_20161120_None_Ammonium sulfate_EPA2283A - Weihan
Date: 2016-11-20

Organization
UCR-CECERT-APL-Cocker Group

Chamber
EPA chamber

Experiment Set
Particle wall loss series experiments

Goals
PM Wall loss without blacklights

Summary
Atomizeing 0.03M Asmonia Sulfate INSTRUMENTS: Dual SMPS

Experiment Details

Categories:

  • Instrument/Chamber characterization
Temperature: 28
Relative Humidity: 0.01
Seeded Experiment: Yes
Type of Seed: Ammonium sulfate
Initial Seed Concentration Value:
Seed Concentration Units:
Fuchs Adjusted Surface Area:
Condensation sink rate coefficient: 0.01
Reaction type:
Oxidant Name: None
Initial Oxidant Concentration Value: 0 (microgram_per_cubic_meter)
RO2 Main Fate: Not Sure
RO2 Lifetime: (Seconds)
Pressure: 0.015'' H2O

Data Sets

ID Instrument File  
2540 SMPS EPA2283A_SMPS_no_experimental_time.csv
2541 SMPS - SizeD EPA2283A_SizeD_no_experimental_time.csv

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

Experiment Set Details

Name: Particle wall loss series experiments
Time format and units: Time format in timeline is the absolute local time.
Description:
Historical experiments that study the particle wall loss. After EPA2418 there was a systematic study of it (Done by Chen Le).

Collaborators:

  • Weihan Peng
  • Chen Le

Download

Download this Experiment (51.64 KB)

Contacts

Principal investigator:

David Cocker
E-mail: dcocker@engr.ucr.edu


Data Manager:

Chen Le
Phone: 9516603455
E-mail: cle030@ucr.edu

20161120_EPA2283_TimeLine.csv Timeline

Time (America/Los_Angeles) Action
11:09 Fill air off; Air Handlers on; Heaters on; Chiller #1 on
11:10 Atomize (NH4)2SO4 into W bag (40 mins at 20 psi)
11:40 Stop atomizer
11:55 Internally mix W bag for 1 min
11:55 SMPS Aero W unstable (2.7); got fixed back to 4.5
12:03 Elevators on (0.015'')
18:10 End of experiment (W:269s)

Citations
Cite this experiment:

Characterizations
Light Flux 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: