Kuyambitsa kwa mawu wamba (2) - mota.

liwiro lamphamvu
1. Mphamvu yogwira:Amadziwikanso kuti ndi mphamvu yotulutsa. Zimatengera mphamvu zomwe zimapezeka ndi
madzi akuyenda pampu yamadzi munthawi ya unit kuchokera kumadzi
pampu.

Pe = ρ gqh / 1000 (kw)

ρ - Kuchuluka kwa madzi opulumutsidwa ndi pampu (kg / m3)
γ - Kulemera kwamadzi opulumutsidwa ndi pampu (n / m3)
Q - mapampu (m3 / s)
H - mutu wa pamtambo (m)
G - Kupititsa patsogolo mphamvu yokoka (m / s2).

2.
Amatanthauza kuchuluka kwa kuchuluka kwa mphamvu yothandiza ya kampo kupita ku mphamvu ya shaft, yofotokozedwa ndi η. Sizingatheke kuti mphamvu zonse shaft kuti zisamutsidwe kumadzi, ndipo pamakhala mphamvu yamadzi. Chifukwa chake, mphamvu yothandiza ya pampu imakhala yochepera kuposa mphamvu ya shaft. Mawonekedwe amawonetsa kuchuluka kwa mphamvu yamagetsi, ndipo ndi mndandanda wa kayendedwe kampuya wamadzi.

`= pe / p × 100%

3. Mphamvu ya shaft
Amadziwikanso ngati mphamvu. Amatanthauza mphamvu zomwe zimapezeka ndi shaft shaft kuchokera ku makina amphamvu, omwe amadziwika ndi P.

Mphamvu ya PSshaft = pe / η = ρgqh / 1000 / η (kw (kw)

4. Mphamvu yofananira
Amatanthauza mphamvu ya makina amphamvu yomwe ikufanana ndi pampu yamadzi, yomwe imayimiriridwa ndi P.

P (chofanizira) ≥ (1.1-1.2) · p neshaft mphamvu

Kuthamanga kwa 5.rotation
Amatanthauza kuchuluka kwa kuchuluka kwa mphindi pa mphindi imodzi ya pampu yamadzi, yomwe ikuimiridwa ndi n. Ndi gawo la R / min.