| Document ID (ISN) | 41459 |
| CIS number |
84-385 |
| ISSN - Serial title |
0509-6510 - Prace Centralnego instytutu ochrony pracy |
| Year |
1983 |
| Convention or series no. |
|
| Author(s) |
Wasiluk W., Jaskólski M. |
| Title |
Studies on a ductless ventilation system |
| Original title |
Prace badawcze nad bezprzewodowym systemem wentylacji [in Polish] |
| Bibliographic information |
1983, Vol.33, No.117, p.81-99. Illus. 4 ref. |
| Abstract |
The airflow regimes in ductless ventilation systems were analysed in model studies with chambers 9m long, 1.8m wide and 1-2m high. Data were obtained with 3 models: a positive-pressure system with regularly spaced inlet vents, a negative-pressure system in which an array of small fans at the top of the chamber swept air toward an exhaust at one end, and a similar negative-pressure system with perforated baffles in the chamber. Data from the negative-pressure models were used to design full-sized systems for a 2-bay assembly room (48x18x5m) in a gas-meter plant and for a 4-bay arc welding shop (10x24x5m). Equations developed in the model studies and refined in the field trials enabled the size and placement of the fans in the welding shop to be calculated from the known rate of generation of welding fumes and the MAC for welding fumes (which determines the necessary rate of turnover of the workplace air). |
| Descriptors (primary) |
aerodynamics; ventilation design; mechanical ventilation; welding fumes |
| Descriptors (secondary) |
mathematical models; tests on models |
| Document type |
D - Periodical articles |
| Subject(s) |
Heating, ventilation and climate
|
| Broad subject area(s) |
|
| Browse category(ies) |
Ventilation
|
