Light Flux Characterization #22 - 2000-01-01
Generic first floor chamber photolysis
Bomem FTIR - First Floor Chamber (#378)
NCAR First Floor Stainless Steel
Date of characterization experiment:
Months since calibration:
Chamber photolysis is typically done with a filtered broad-band Xe-arc lamp, which provides near UV radiation (290-400 nm).
Photolysis frequency of NO2 with max lighting [Hz]:
Photolysis frequency of H2O2 with max lighting [Hz]:
Photolysis frequency of O3 with max lighting [Hz]:
Total number of lights:
Light percentage on:
Light source type:
Position and pattern of lights:
Xe arc lamp photolyzes along the length of the chamber.
Data collection description:
Cl2 or CH3ONO photolysis rates are determined by monitoring loss rates of VOCs in photolysis of Cl2/VOC/air or CH3ONO/VOC/NO/air mixtures. VOC data are collected every 5-10 min using FTIR, and loss rate is used to determine J(Cl2) / J(CH3ONO).
Data analysis description:
A simple box model is needed to account for OH regeneration, or loss of oxidant due to reaction with VOC oxidation products.
Link to supplemental information:
Characterization data file:
|ID||Name||Start date||Experiment Category||Reaction Type||Reactant(s)||Oxidant Name||Temperature||Humidity||Type of Seed||RO2 Main Fate||Data Sets (count)||Actions|