ʻO ka hoʻolahaʻana i nā'ōlelo maʻamau (4) - E paʻi like

kānāwai
Noi o keʻano like o ka pump

1
• Q1 / Q2 = N1 / N2
• h1 / H2 = (N1 / N2) 2
• p1 / p2 = (n1 / n2) 3
• NPSH1 / NPSH2 = (N1 / N2) 2

'Alalelo:

E loaʻa ana kahi pālule,ʻo ke kumu hoʻohālike ka slw50-200b, pono mākou e hoʻololi i ka slw50-200b mai 50 hz a 60 hz.
(mai 2960 rpm i 3552 rpm)

Ma 50 hz, he mau mea hana o ka Impeler i waho o 165 mm a me ke poʻo o 36 m.

H60hz / h50hz = (n60hz / n50hz) ² = (3552/2960) 2 = 1.2) ² = 1.24
I ka 60 hz, h60hz = 36 × 1.44 = 51.84m.
E hōʻuluʻulu i, ke poʻo o kēiaʻano o kēiaʻano pump e hiki ai i ka 52m ma 60hz wikiwiki.