A wind tunnel system for testing of smoke detectors
Year of publication
1983
Authors
Ahonen, Antti; Sysiö, Pauli
Abstract
A wind tunnel aerosol generator system for testing of smoke detectors according to the European standard proposal prEN 54-7 is described. The system comprises a thermally insulated wind tunnel, a unit for generating and measuring the specified air flow, a heater unit for controlling the air temperature, a pressurised air operated aerosol generator for producing the artificial smoke, and the necessary instruments for the smoke density and temperature measurements. The properties and the stability of the aerosol have been investigated by smoke density measurements using a combination of a standard ionisation chamber and two optical densitometers working at different wawe length ranges. Excellent long term stability and reproducibility are obtained.
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Publication type
Publication format
Monograph
Audience
Professional
MINEDU's publication type classification code
D4 Published development or research report or study
Publication channel information
Journal
Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports
Publisher
VTT Technical Research Centre of Finland
Issue
221
ISSN
ISBN
Open access
Open access in the publisher’s service
No
License of the publisher’s version
Other license
Self-archived
No
Other information
Keywords
[object Object],[object Object],[object Object],[object Object]
Language
English
International co-publication
No
Co-publication with a company
No
The publication is included in the Ministry of Education and Culture’s Publication data collection
No