Table 7 Correlations for civil works for run-of-river small hydropower plant scheme (Kishore et al., 2021)

1

Diversion Weir

\(47{.00P}^{1.10}{H}^{-0.99}\)

\(38{.55P}^{1.17}{H}^{-1.16}\)

\(2{.59P}^{1.18}{H}^{-1.15}\)

\(1.51{P}^{0.71}{H}^{-0.67}\)

2

Intake Channel (per meter)

\({2.99P}^{0.85}{H}^{-0.91}\)

\({0.81P}^{0.88}{H}^{-0.94}\)

\({0.03P}^{0.82}{H}^{-0.87}\)

–

3

Desalting tank

\({1770.70P}^{0.83}{H}^{-1.02}\)

\({836.96P}^{0.79}{H}^{-1.01}\)

\({9.81P}^{0.76}{H}^{-0.92}\)

\(2.96{P}^{0.83}{H}^{-1.01}\)

4

Head race (per meter)

Channel

\(0.27{P}^{0.84}{H}^{-0.94}\)

\(0.09{P}^{0.84}{H}^{-0.95}\)

\(0.02{P}^{0.22}{H}^{-0.25}\)

-

PVC pipe

\(2.0{P}^{0.84}{H}^{-0.95}\)

\(0.13{P}^{0.87}{H}^{-0.98}\)

\(0.01{P}^{0.82}{H}^{-0.92}\)

\(0.01{P}^{1.5}{H}^{-0.93}\)

MS pipe

\(0.02{P}^{1.10}{H}^{-1.24}\)

GRP pipe

\(0.01{P}^{1.5}{H}^{-0.5}\)

Tunnel

\(0.08{P}^{0.98}{H}^{-0.95}\)

\(0.83{P}^{0.71}{H}^{-0.69}\)

–

\(0.02{P}^{0.96}{H}^{-0.93}\)

5

Surge tank

\(0.04{P}^{0.98}{H}^{-0.19}\)

\(0.04{P}^{0.98}{H}^{-0.20}\)

\(0.03{P}^{0.98}{H}^{-0.19}\)

–

6

Forebay and spillway

\(1339.43{P}^{0.50}{H}^{-0.69}\)

\(70.31{P}^{0.73}{H}^{-0.63}\)

\(5.22{P}^{0.72}{H}^{-0.61}\)

\(5.62{P}^{0.58}{H}^{-0.70}\)

7

Penstock (per meter)

PVC pipe

\(0.42{P}^{0.83}{H}^{-0.98}\)

\(0.31{P}^{0.84}{H}^{-0.98}\)

\(0.03{P}^{0.83}{H}^{-0.97}\)

\(0.04{P}^{1.5}{H}^{-0.81}\)

GRP pipe

\(0.01{P}^{1.5}{H}^{-0.85}\)

HDPE pipe

\(0.08{P}^{1.5}{H}^{-0.80}\)

Steel pipe

\(0.05{P}^{0.83}{H}^{-0.95}\)

8

Tail race channel (per meter)

\(0.91{P}^{0.83}{H}^{-0.90}\)

\(1.82{P}^{0.87}{H}^{-0.91}\)

\(0.01{P}^{0.80}{H}^{-0.79}\)

9

Power house building

Pelton/Turgo impulse

\(16.09{P}^{2.46}{H}^{-1.75}\)

\(0.00052{P}^{2.54}{H}^{-0.42}\)

\(0.00022{P}^{4.02}{H}^{-2.83}\)

\(0.09{P}^{4.55}{H}^{-3.50}\)

Francis

\(0.08{P}^{2.33}{H}^{-1.33}\)

\(0.03{P}^{2.29}{H}^{-1.32}\)

\(0.05{P}^{2.36}{H}^{-1.34}\)

\(0.02{P}^{2.19}{H}^{-1.26}\)