Okwu Mmalite nke okwu mgbapụta a na-ejikarị eme ihe (4) – Myirịta nke mgbapụta

iwu
Ojiji nke ozizi yiri nke mgbapụta

1. Mgbe etinyere iwu yiri nke ahụ na otu ọkpọkọ vane ahụ na-agba ọsọ dị iche iche, enwere ike nweta ya:
•Q1/Q2=n1/n2
•H1/H2=(n1/n2)2
•P1/P2=(n1/n2)3
•NPSH1/NPSH2=(n1/n2)2

Ihe atụ:

Dịka ọ dị na mgbapụta, ihe nlereanya ahụ bụ SLW50-200B, anyị kwesịrị ịgbanwe SLW50-200B site na 50 Hz ruo 60 Hz.
(site na 2960 rpm ruo 3552 rpm)

Na 50 Hz, impeller nwere dayameta mpụta nke 165 mm na isi nke 36 m.

H60Hz/H50Hz=(N60Hz/N50Hz)²=(3552/2960)2=(1.2)²=1.44
Na 60 Hz, H60Hz = 36×1.44 = 51.84m.
Iji chịkọta, isi nke ụdị ọkpọkọ a kwesịrị iru mita 52 na ọsọ 60Hz.