Scribd
Upload
26 views1 page

Turbine Efficiency Analysis

This document contains observations and calculations from an experiment involving a brake drum, rope, guide vane, orificemeter, and turbine. It includes inputs like head pressure, rope diameter, vane opening and records outputs like discharge, speed, power and efficiency. The table shows 6 runs where variables like weight, spring balance and net weight were adjusted while keeping pressure, orifice head and discharge constant. Speed, output, input and efficiency values are reported for each run.

Uploaded by

GANESH KUMAR
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOC, PDF, TXT or read online on Scribd
26 views1 page

Turbine Efficiency Analysis

This document contains observations and calculations from an experiment involving a brake drum, rope, guide vane, orificemeter, and turbine. It includes inputs like head pressure, rope diameter, vane opening and records outputs like discharge, speed, power and efficiency. The table shows 6 runs where variables like weight, spring balance and net weight were adjusted while keeping pressure, orifice head and discharge constant. Speed, output, input and efficiency values are reported for each run.

Uploaded by

GANESH KUMAR
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOC, PDF, TXT or read online on Scribd
You are on page 1/ 1

OBSERVATION & CALCULATION:

Brake drum dia D =0.3m Input total head H in m of water =Pressure gauge reading in kg/cm2x10 m
Rope Dia t = 0.015m Orificemeter Head p in m of water = (p1-p2) x 10
Effective Radius of = (D/2 + t)= 0.165m
Weight of rope & Hanger = 1 kg Discharge Q = Kp (h in m of water)
Guide Vane opening = 0.8 Input Power IP =  x Q x H kW (H in m of water)
Run away speed = 1750 RPM Brake Drum net load W = (W1 + Weight of rope &hanger)-W2 kg
‘K’ Value = 2.3652 x 10-2 Turbine output OP = (2 NWRe x 9.81)/60,000 kW
Efficiency  = (output / Input) x 100%

S. Pressure Orificemeter head Discharge Weight Spring Net Speed Output Input Efficiency
N (H) Gauge Pressure Gauge on balance Weight
Reading Reading hanger reading
P P1 P2 P Q W1 W2 W N OP IP 
kg/cm2 kg/cm 2 3
m /sec kg kg kg rpm kW kW %
1. 0.775 0.875 0.74 1.35 2.7481x10-2 1 0 2 1500 0.5082 2.0893 24.3
2. 0.775 0.875 0.73 1.45 2.8481x10-2 2 0 3 1380 0.7014 2.1653 32.4
3. 0.775 0.875 0.73 1.45 2.8481x10-2 3 0 4 1300 0.8809 2.1653 40.6
4. 0.775 0.875 0.73 1.45 2.8481x10-2 4 0 5 1190 1.0080 2.1653 46.5
5. 0.775 0.875 0.72 1.55 2.9446x10-2 5 0 6 1100 1.0165 2.2387 45.4
6. 0.775 0.875 0.71 1.65 3.0386x10-2 6 0 7 1000 1.1859 2.3098 51.3

[61]

You might also like