6 solar cells, 1 voltmeter, 1 ammeter, 1 10mW / cm 2 light source, connection apparatus and cables, 1 rechargeable Li or Ni-Cd battery, 1 thermometer
This experiment kit teaches what to look for when electricity is generated from the sun. The light source was 10 mW / cm 2
halogen lamp in the intensity are used. All characteristic features of solar cells are also studied. It can also be used to connect to Lithium batteries, charge and discharge batteries. This experiment set which gains importance about alternative energy today will provide your laboratory with wealth.
The circuit on the side is used for the current voltage characteristic from these experiments. The variable resistor connected to the circuit will limit the current due to the solar cell. R is changed and the voltages and currents are measured. The measured current when R = 0 is the short circuit current and the voltage measured when R is the maximum value is the open circuit voltage. The current-voltage graph is shown on the screen. When the necessary analysis is performed using the solar cell diode model, it can be found, for example, that the graph is I = 0.43 [1- e 13 / 84V ] + 250 mA. From this equation, maximum power (P = IV) voltage: V mg can be found. In this experiment set, the variations of the voltages according to ambient temperature, distance and angle of attack are examined and yield calculations are made.