LOCAL EXHAUST VENTILATION - A NUMERICAL AND EXPERIMENTAL-STUDY OF CAPTURE EFFICIENCY

Citation
U. Madsen et al., LOCAL EXHAUST VENTILATION - A NUMERICAL AND EXPERIMENTAL-STUDY OF CAPTURE EFFICIENCY, Building and environment, 29(3), 1994, pp. 319-323
Citations number
NO
Categorie Soggetti
Construcion & Building Technology","Engineering, Environmental
Journal title
ISSN journal
03601323
Volume
29
Issue
3
Year of publication
1994
Pages
319 - 323
Database
ISI
SICI code
0360-1323(1994)29:3<319:LEV-AN>2.0.ZU;2-5
Abstract
Capture efficiency of a local exhaust system, e.g. a kitchen hood, sho uld include only contaminants being direct captured. In this study bas ic concepts of local exhaust capture efficiency are given, based on th e idea of an imaginary control box. A validated numerical model is use d for estimation of the capture efficiency. An experimental technique is introduced for field studies taking into account knowledge of flow patterns of air and contaminants obtained from smoke testing and conta minant concentrations.