Nano Archive

Size distributions of aerosols in an indoor environment with engineered nanoparticle synthesis reactors operating under different scenarios

Sahu, Pratim (2010) Size distributions of aerosols in an indoor environment with engineered nanoparticle synthesis reactors operating under different scenarios. Journal of Nanoparticle Research, 12 (3). pp. 1055-1064.

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Official URL: http://dx.doi.org/10.1007/s11051-010-9874-9

Abstract

Abstract Size distributions of nanoparticles in the vicinity of synthesis reactors will provide guidelines for safe operation and protection of workers. Nanoparticle concentrations and size distributions were measured in a research academic laboratory environment with two different types of gas-phase synthesis reactors under a variety of operating conditions. The variation of total particle number concentration and size distribution at different distances from the reactor, off-design state of the fume hood, powder handling during recovery, and maintenance of reactors are established. Significant increases in number concentration were observed at all the locations during off-design conditions (i.e., failure of the exhaust system). Clearance of nanoparticles from the work environment was longer under off-design conditions (20 min) compared to that under normal hood operating conditions (4-6 min). While lower particle number concentrations are observed during operation of furnace aerosol reactors in comparison to flame aerosol reactors, the handling, processing, and maintenance operations result in elevated concentrations in the work area.

Item Type:Article
ID Code:9122
Deposited By:Prof. Alexey Ivanov
Deposited On:13 May 2010 12:53
Last Modified:13 May 2010 13:19

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