Table 2.
Equations of head loss (J, m·m−1) as a function of flow rate (Q, m3·s−1) for Turbo Tape (TT, ξ = 150 μm) and Silver Drip (SD, ξ = 200 μm).
| Emitting pipe model | Test pressure (kPa) | R e range | Equation | R 2 |
|---|---|---|---|---|
| TT | 40 | 4818 to 17383 | J = 287455.85Q1.75 | 0.9984 |
| TT | 60 | 6454 to 23177 | J = 282964.87Q1.75 | 0.9977 |
| TT | 80 | 6887 to 29092 | J = 281889.13Q1.75 | 0.9991 |
| TT | 100 | 12741 to 32855 | J = 279015.61Q1.75 | 0.9983 |
| SD | 40 | 6275 to 15337 | J = 289183.70Q1.75 | 0.9993 |
| SD | 60 | 8947 to 22490 | J = 288884.16Q1.75 | 0.9988 |
| SD | 80 | 11731 to 27427 | J = 288696.89Q1.75 | 0.9997 |
| SD | 100 | 7954 to 31414 | J = 287183.70Q1.75 | 0.9994 |