Pressure Losses across Multiple Fittings in Ventilation Ducts

Table 1

Fifteen fitting configurations tested in this study.

Case	Configuration of fitting(s)	Mean flow velocities; (m/s)
1		10, 15, 20, 25, 30
2		10, 14, 18, 22, 26
3		10, 12, 14, 16, 18
4		15, 20, 25, 30, 35
5		10, 15, 20, 25, 30
6		10, 12, 14, 16, 18
7		10, 15, 20, 25, 30
8		10, 14, 18, 22, 26
9		10, 12, 14, 16, 18
10		10, 13, 16, 19, 22
11		10, 12, 14, 16, 18
12		10, 11, 12, 13, 14
13		10, 14, 18, 22, 26
14		10, 13, 16, 19, 22
15		10, 12, 14, 16, 18