[pam-users] Release of estimation equations for high-NO OFR modes

pam-users aerodyne-pam-users at aerodyne.com
Mon Dec 4 18:58:53 EST 2017


Dear OFR users,

We have just released a new version of the OFR exposure estimators (Excel
and Igor) that implement the estimation equations for 3 high-NO operation
modes, as discussed in Peng. et al., ACS E&SC 2017:

http://pubs.acs.org/doi/10.1021/acsearthspacechem.7b00070

These modes can allow running the OFR under conditions where RO2 + NO
dominates the fate of RO2 (although it can be quite tricky, see the paper
and estimators for details).

Note that it is very difficult to achieve that goal (RO2 + NO dominates) by
just introducing a lot of NO at he inlet of the OFR, as documented on this
additional recent paper:

https://www.atmos-chem-phys.net/17/11991/2017/

When studying sources with high NO, we recommend diluting by a significant
factor (x100 is a typical number, though it'll vary with conditions) to get
OHR close to ambient conditions.

The estimators are at the usual PAMWiki page:

https://sites.google.com/site/pamwiki/hardware/estimation-equations

Let us know if you have any questions.
- Zhe & Jose
Total Control Panel
https://asp.reflexion.net/history-detail?hID=24867115861
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