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Abstract

THIS REPORT DESCRIBES THE EXPERIMENTAL DETERMINATION OF THE STICKING PROBABILITY OR MASS ACCOMODATION COEFFICIENT, WHICH IS USED IN THE MODELLING OF THE CONDENSATION PROCESS IN AEROSOLS. H(2)SO(4)-H(2)O AEROSOLS ARE FORMED PHOTO-CHEMICALLY BY U-V IRRADIATION OF A SO2NOX PROPANE, PROPENE - H(2)O AIR MIXTURE. AFTER NUCLEATION CEASES, THE INCREASE IN AEROSOL VOLUME IS MONITORED USING A DIFFERENTIAL MOBILITY PARTICLE SIZER. SIMULTANEOUSLY THE FORMATION RATE OF H(2)SO(4) IS MEASURED BY MONITORING THE DECAY OF PROPANE AND PROPENE, FROM WHICH THE OH CONCENTRATION CAN BE DERIVED. COMPARING THESE TWO FACTORS AND TAKING INTO ACCOUNT THE DEPOSITION OF H(2)SO(4) (GAS) AND AEROSOL ON THE REACTOR WALLS, THE STICKING PROBABILITY CAN BE DETERMINED. FIRST RESULTS INDICATE S TO BE SMALLER THAN 0.1

Additional information

Authors: VAN DINGENEN R NUCLEAR PHYSICS LAB., STATE UNIVERSITY, GENT RAES F JRC-ISPRA , NUCLEAR PHYSICS LAB., STATE UNIVERSITY, GENT;JRC-ISPRA
Bibliographic Reference: PAPER PRESENTED: 12TH INTERNATIONAL CONFERENCE ON ATMOSPHERIC AEROSOLS AND NUCLEATION, WIEN/A, AUG. 22-27, 1988, AVAILABILITY: CEC-LUXEMBOURG, DG XIII/A2, BP 1907, MENTIONING PAPER ORA 34096 E
Availability: Can be ordered online
Record Number: 1989126203200 / Last updated on: 1989-04-01
Category: PUBLICATION
Available languages: en