Theoretical Calculations:
For this prototype, we used a total of 0.75Kg of water. The water flowed out at a rate of 0.1 L/s. The gravitational constant is 9.81 m/s2. The height is around 0.15 M (15cm). The η is 0.2. Multiplying all of that together is 0.0252 x 9.81 x 0.15 x 0.2 which equals 0.02943 Watts. Therefore the amount of power we should make is 0.02943 Watts. The average amount of power needed to lights up a tv remote light like this is approximately 0.00393 Watts so we should be able to create more than enough electricity.
Experimental Results:
The formula used to calculate the power is P = V x I, with V being the voltage of the small LED light and I the current intensity running through it. which were both measured using a multimeter.
In the first iteration, we found that V = 1.2 V and the current was measured at I = 10 mA, giving a power of P = 1.2 x 0.01 = 0.012 Watts.
In the second iteration, V remains at 1.2V because it is. a constant. The I was measured at 13mA, giving a power of P= 1.2 x 0.013= 0.0156 Watts
In the third iteration, the V= 1.2V and the I = 17 mA. So therefore giving a power of P = 1.2 x 0.017 =0.0204 Watts
For the fourth and final iteration, the V = 1.2V and the current was 20 mA. Therefore giving a power of P = 1.2 x 0.02 = 0.024