OBSERVATION

Formulae

$Total Head (H) = 10 × (Gauge Pressure + Vacuum Pressure) in meters$ $Q = \frac{A \times h}{t}$

$P_{input} = \frac{3.6 \times 10 \times n \times 1.36}{K \times t_{rev}}$

$P_{output} = \frac{W \times Q \times H}{75}$

$η = \frac{P_{output}}{P_{input}} \times 100%$

Provided Data

Area of Discharge Tank (A) = 0.25 m²
Number of Meter revolution (n) = 10
Energy Meter Constant (K) = 15.018
Specific Weight of Water (W)= 1000 kg/m³

Observation Table
S.No:	Pressure Gauge (Kg/cm²)	Vacuum gauge (Kg/cm²)	Time for 10 cm rise of water (t) (Sec)	Time for 10 revolutions of meter (trev) (Sec)	Speed N (RPM)
1.
2.
3.
4.
5.

Calculation Table
S. No	Total Head H (m)	Flow Rate Q (m³/s)	Input Power (HP)	Output Power (HP)	Efficiency (%)
1.
2
3
4
5

Result Table
S. No	Total Head H (m)	Flow Rate Q (m³/s)	Input Power (HP)	Output Power (HP)	Efficiency (%)
1.	4.60	0.00078125	0.6520	0.0479	7.349
2.	14.20	0.0007575757576	0.7582	0.1434	18.919
3.	24.20	0.0007142857143	0.8811	0.2305	26.158
4.	33.80	0.0006944444444	1.1242	0.3130	27.840
5.	39.00	0.0006756756757	1.0516	0.3514	33.410