Mechanical Engineering - Hydraulic Machines - Discussion
Discussion Forum : Hydraulic Machines - Section 2 (Q.No. 49)
49.
A Pelton wheel develops 1750 kW under a head of 100 metres while running at 200 r.p.m. and discharging 2500 litres of water per second. The unit discharge of wheel is
Discussion:
6 comments Page 1 of 1.
Pratik said:
5 years ago
@Ram Kumar
1.75 was unit power, unit speed is 20 rpm, unit discharge is 0.25.
1.75 was unit power, unit speed is 20 rpm, unit discharge is 0.25.
MADHU said:
7 years ago
Thank you @Saurabh Yadav.
Saurabh yadav said:
10 years ago
Unit discharge = Q/(H)^(1/2).
Q = 2500 Lit. = 2.5 m^3.
Unit discharge = 2.5/(100)^(1/2) = 0.25.
Q = 2500 Lit. = 2.5 m^3.
Unit discharge = 2.5/(100)^(1/2) = 0.25.
RAM KUMAR said:
1 decade ago
In some other case answer as 1.75, Its a right or wrong?
Viettan K said:
1 decade ago
Please explain more detail what unit discharge is?
Saurabh said:
1 decade ago
Unit discharge(Q') = Q/H^2.
So Q'= 2500/(100^2).
Therefore,
Q' = 0.25(B).
So Q'= 2500/(100^2).
Therefore,
Q' = 0.25(B).
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