Solar Heating System Worksheet

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Solar Heating System Worksheet Powered By Docstoc
					                              Solar Panel Laboratory

Laboratory activity examining series and parallel connections of solar panels.
The assessment criteria incorporate the laboratory measurements, comparison
and interpretation of the characteristic curves.



Materials
2- solar panels*
Connecting leads
Load measurement box with variable resistance*
Lamp 100-150 Watt
* materials available from educational material suppliers

Instructions

Solar modules connected in series

    Set up apparatus as shown:



                               Load Box



                       A            V            R
                                        _
                   +            +                   _
                                        _
                                        _
                                        _
                     +       _          _ + _
                                        _
                                        _
                                        _
                               Solar Panels
                                        _                              Lamp
                                        _
                                        _
                                       _
       Illuminate solar modules with the lamp
      Adjust variable resistor from 0Ω _ 1Ω, 5Ω, 10Ω, 50Ω, 100Ω, 200Ω
                                        ,
      Record output current and voltage
                                        _
   Plot current vs. voltage
   Plot power vs. voltage, determine maximum power point



     Solar modules connected in parallel

   Set up apparatus as shown:




                             Load Box



                      A           V            R
                                      _
                  +           +                   _
                                      _
                                      _
                                      _
                   +       _          _ + _
                                      _
                                      _
                                      _
                             Solar Panels
                                      _                              Lamp
                                      _
                                      _
                                     _
     Illuminate solar modules with the lamp
    Adjust variable resistor from 0Ω _ 1Ω, 5Ω, 10Ω, 50Ω, 100Ω, 200Ω
                                      ,
    Record output current and voltage
    Plot current vs. voltage
                                      _
   Plot power vs. voltage; determine maximum power point


Assessment Criteria

  1. Lab Worksheet
        a. Tables of measurements clearly labeled / legible; all information included
        b. Sketch of apparatus and wiring included
        c. Plots done neatly, clearly labeled; all information included
        d. Calculation of maximum power point done correctly
        e. Lay persons explanation of the difference between the two connections