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* Don’t shoot us, we are only the piano players…

HEL I ANTUS. HEL I ANTUS. SALA CONSILINA (SA) 2007 Paolo Zozzaro* ITIS “G. Gatta” Roberto De Luca* Università degli Studi di Salerno. Three-dimensional arrangement of sunlight traps in conceptually devised HELIANTHUS solar power plants. * Don’t shoot us, we are only the piano players….

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* Don’t shoot us, we are only the piano players…

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  1. HEL I ANTUS HEL I ANTUS SALA CONSILINA (SA) 2007 Paolo Zozzaro*ITIS “G. Gatta”Roberto De Luca*Università degli Studi di Salerno Three-dimensional arrangement of sunlight traps in conceptually devised HELIANTHUS solar power plants *Don’t shoot us, we are only the piano players…

  2. Secondary mirror z Primary mirror M1 q to a black body y M2 Light sensor A solar trap: the Planckon system Is it possible to trap solar radiation? The answer is affirmative [1] [1] R. De Luca, F. Romeo, P. Zozzaro, Capturing sunlight, Eur. J. Phys. 27 (2006) 347-352

  3. No convection liquid to heat water A black body can be used to store radiating energy Perfectly reflecting inner walls Black metallic nucleus containing water Rotating mechanical system Opening for solar radiation intake

  4. HEL I ANTUS Therefore, if we are able to concentrate sunlight in a small region in space and we are able to let this radiating energy enter, through a small hole, a cavity with highly reflecting inner walls, we can say we have trapped sunlight. In the PLANCKON system, sunlight is used to heat water in a spherical chamber. We can now extend this concept to black bodies of different shapes, in order to heat water or generate steam, as in an HELIANTHUS column.

  5. solar collector HELIANTHUS: How does it work? Let us take a look inside… hollow cylindrical insulating layer metal jacket Steam pipe hollow cylindrical insulating layer metal jacket containing water water

  6. HELIANTUS HELIANTUS HELIANTUS HELIANTUS HELIANTUS HELIANTUS HELIANTUS HELIANTUS What the advantages? Three-dimensional arrangement of solar collectors. A rough estimate for power output of a single helianthus column under partly cloudy sky conditions: P = N r A N=5; r =500 W/m2; A=10 m2, so that P = 25 kW.

  7. fiber Other applications? PV cells inside PV cell Diffusing system and filter

  8. IN CONCLUSION: Is sunlight trapping convenient as far as environmental issues are concerned? • No need of convection fluids • Saving horizontal space on Earth surface • Confined energy (almost no harm to flying species, almost no physical impact on ground fauna) • DRAWBACKS: it does not exist yet… Please let future life on Earth be possible!

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