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					OPERATION AND APPLICATION OF
       SOLAR ENERGY


• TOMÁŠ VOPÁT
• TOMÁŠ BOČKO

            Computer Aided Production Technologies
     The main points of presentation :
•   1 Solar energy

•   2 Solar energy power plants
      2.1 Photovoltaic
      2.2 Thermal

•   3 Solar energy used to treat water
      3.1 SODIS
      3.2 Water treatment

•   4 Slovakia and solar energy
      4.1 Solar energy power plants and Slovakia

•   5 Solar energy in our faculty                  01/14
1 SOLAR ENERGY




What is solar energy?

Solar energy - is the radiant light and heat from
 the Sun and can be used to generate electricity


                                                02/14
                                                              Radiated to Radiated to
                  Reflected by   Reflected by Reflected by
                                                              space from space from
                  atmosphere       clouds     earth´s surface
                                                              atmosphere    earth

                          10              35            7
                                                                   111          10
         15
174.10        W




                                          33

                                     Absorbed by
                                      atmospere
                                                                           Radiation
                                                                          absorbed by
                                                                          atmosphere
                                                   12

                                         Conduction
                                                                         Latent heat
                                         and rising
                                                                          in water
                                            air
                                                                            vapor

                                                                         14°C   03/14
2 SOLAR ENERGY POWER PLANTS

 2.1 Photovoltaic: The direct conversion of
  sunlight to electricity

 2.2 Thermal: The use of heat to generate
  electricity




                                               04/14
• 2.1 PHOTOVOLTAIC




                     05/14
• 2.2 THERMAL




                06/14
               3. Water treatment

- solar distillation can be used to make saline or brackish water potable.




                                                                       07/14
                        3.1 SODIS
                  Solar water DISinfection
-   Involves exposing water-filled plastic polyethylene terphthalate
    (PET) bottles to sunlight for several hours




          Application of SODIS technology in Indonesia to water disinfection   08/14
                    3.1 Water treatment
- solar energy may be used in a water stabilisation pond to treat waste
    water without chemicals or electricity
- solar energy has also be used for detoxification of contaminated water
    via photolysis
- the economics of this process is though doubtful.




                                                                      09/14
Small scale solar powered sewerage treatment plant




                                                     10/14
       4. Slovakia and solar energy

• Solar energy has great a potencial.
• In the Slovakia there is usage of solar energy, but not so frequented
  as world enviromental urgency needs.
• The most used are solar panesls, for purpose, heating water.
  Question about Solar Powerplants is discussed for a years.
• The fact is, not a single is working, in spite of we can say there is
  a light in the dark.
• In a present year should investments add a solar power plant.
• Village Buzitka close to Lučenec, is the chosen one place, where
  are very appropiate conditions for solar power plant.
• Sun shines of average nearly 2000 daily. As far as I know, Slovakia
  awaits first kilowatts in fall.




                                                                     11/14
     5. Solar energy in our faculty

• Solar energy is also used by our university.
• It was established in 2007 with iniciative of group
  INTERREG and 30. march in 2007 was festively opened.
• The highest floor of heavy laboratories bear solar panels
  and one laboratory room.
• Two solar systems are installed in labaratory.
  Photovoltaics and termal.
• Warm water, runing in water-pipe-system is a result of
  this solution.
• Photovoltaics elements are connected to electrical
  network as well.


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Thank you