EKC 377RENEWABLE AND SUSTAINABLE ENERGY

A Look into Renewable Energy Efficiency

“HYDROELECTRIC generator”

Shaft

Dynamo

Resistor

•

Angle (degree) Set

Voltage (V) Current (mA)Minimum

Power Output

(W)

Minimum Efficiency

(%)minimum maximum

Ratio(max/min)

minimum

maximum

Ratio (max/min)

45 1 0.01 0.03   0.33 1.05        2 0.01 0.03   0.35 1.22        3 0.01 0.03   0.33 1      

 Average 0.01 0.03 3

0.336667 1.09

3.2376238

3.36667E-06

0.00219981

90 1 0.169 0.469   0.44 1.36        2 0.117 0.502   0.29 1.48        3 0.137 0.484   0.56 1.25      

 Average 0.141 0.485 3.4397163 0.43

1.363333

3.1705426

0.00006063

0.039616187

Table 1: Second stage design (Different angle injection of water)Volumetric flow rate (m3/s) 0.000194

Angle (degree) Set

Voltage (V) Current (mA)

Minimum Power Output

(W)

Minimum Efficiency

(%)minimum maximumRatio(max

/min)minimum

maximum

Ratio (max/min)

90 1 0.005 0.28   0.01 0.03      

  2 0.003 0.139   0.01 0.03      

  3 0.002 0.18   0.01 0.03      

 Average 0.003333 0.199667 59.9 0.01 0.03 3

3.33333E-08

0.000347081

Table 2: Second stage design (lower flow rate)

Volumetric flow rate (m3/s) 7.69E-05

Volumetric flow rate (m^3/s) 0.000196

Angle (degree) Set

Voltage (V) Current (mA)

Minimum Power Output

(W)Minimum

Efficiency (%)minimum maximumRatio(max/

min) minimum maximumRatio (max/min)

90 1 0.486 0.531   1.88 2.11      

  2 0.442 0.533   1.88 2.04      

  3 0.521 0.538   1.84 2.01      

  Average 0.483 0.534 1.1055901 1.866667 2.053333 1.1 0.0009016 0.564158309

Table 3 : final design (8 blades)

• Higher number of blades increases the efficiency of the model

• 90°is the best angle to rotate the blade• Higher flow rate of water produces higher

energy and efficiency output compared to lower flow rate.