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This document contains observations and measurements from an experiment involving a water turbine system. It records various parameters such as brake drum diameter, rope diameter, discharge rate, input and output power, speed, and efficiency over six trials. The measurements were taken with the pressure gauge and venturi meter readings held constant while the net load on the brake drum was increased from trial to trial. This resulted in decreasing speed and increasing output power and efficiency from the first to last trial.

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GANESH KUMAR
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28 views1 page

Page 49

This document contains observations and measurements from an experiment involving a water turbine system. It records various parameters such as brake drum diameter, rope diameter, discharge rate, input and output power, speed, and efficiency over six trials. The measurements were taken with the pressure gauge and venturi meter readings held constant while the net load on the brake drum was increased from trial to trial. This resulted in decreasing speed and increasing output power and efficiency from the first to last trial.

Uploaded by

GANESH KUMAR
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as DOC, PDF, TXT or read online on Scribd
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OBSERVATION & TABULATION:

Brake drum dia D =0.2m Input total head h in m of water = Pressure gauge reading in kg/cm2x10
Rope dia T =0.015m Venturimeter head h in m of water = (P x 10) meter
Effective radius of = (D/2 +T) Discharge Q = k √h (h in m of water)
Brake drum = 0.115m Input powr IP =  QH kW (h in m of water)
Weight of rope & hanger = 1kg Brake drum net load W =(W1 + weight of rope hanger) –W2 kg
Spear Opening = Full Turbine output OP = (2 NW Re x 9.81) / 60000 kW
Gate valve opening = Full Efficiency  = (Output / Input) x 100%
‘K’ Value = 3.183 x 10-3 Pumpset brand & model = CRI; 5H3

Sl Pressure Pressure Gauge Discharge Weight Spring Net Speed Output Input Efficiency
N gauge reading Venturi on balance Load
reading -meter hanger reading
P.S P1 p2 P h Q W1 W2 W N OP IP 
2 2 3
kg/cm kg/cm metres m /sec kg kg kg rpm kW KW %
1. 3.45 3.8 3.0 0.8 8 9.0029x10-3 0 0 1 1432 0.1691 3.047 5.5
2. 3.45 3.8 3.0 0.8 7 8.4214x10-3 2 0.5 2.5 1400 0.4133 2.8502 14.5
3. 3.45 3.8 3.0 0.8 7 8.4214x10-3 4 1.1 3.9 1360 0.6263 2.8502 21.9
4. 3.45 3.8 3.0 0.8 7 8.4214x10-3 6 1.9 5.1 1334 0.8033 2.8502 28.2
5. 3.45 3.8 3.0 0.8 7 8.4214x10-3 8 2.4 5.6 1294 0.8556 2.8502 30.0
6. 3.45 3.8 3.0 0.8 7 8.4214x10-3 10 3.0 8 1262 1.1921 2.8502 41.8

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