## Sustainable paint system for aircraft

The innovation can save about 10% energy in vehicles and can also be integrated into houses

**Calculation of the energy savings that the innovation allows:**

For a first approximation, a simply energy problem is solved: The power of solar radiation is completely transferred to the aerodynamic boundary layer.

parameters of the problem: v, P, I, S (Velocity of the body, Power consumed by the body, Solar intensity, Surface painted in matt black)

n: v, P, I, S (4); k: M, L, T (3)

Vaschy-Buckingham π theorem : n-k=4-3=1; η = I·S/P(v); I=1KW/m2

application to a car:

S=5 m2; P(100 Km/h)=40 KW; η = I·S/P(v)=1·5/40=12% energy saving

Dron | Motorcycle | Car | Helicopter | Aeroplane | Wind Turbine | Satelite | ||

S | m2 | 0,004 | 0,0375 | 5 | 26 | 141 | 240 | 1 |

v | Km/h | 10 | 20 | 100 | 250 | 435 | 252 | 11300 |

P | W | 54 | 240 | 40480 | 316000 | 3276000 | 2500000 | 4000 |

η | – | 0,07 | 0,16 | 0,12 | 0,08 | 0,04 | 0,10 | 0,35 |