Calculate energy available in 5 Kg wind, if the power available at the rotor of a wind turbine is 648 kW, diameter of the rotor, D = 84 m, Air density, ρ = 1.23 kg/m3 and Power Coefficient, Cp = 0.42

Calculate energy available in 5 Kg wind, if the power available at the rotor of a wind turbine is 648 kW, diameter of the rotor, D = 84 m, Air density, ρ = 1.23 kg/m3 and Power Coefficient, Cp = 0.42

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter13: Universal Gravitation

Section: Chapter Questions

Problem 13.36P

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Concept explainers

Debye Theory of Solids

In solid-state physics, debye theory is used to estimate the phonons contributing to the specific heat capacity in a solid. It explains that the specific heat is a consequence of the vibrations of the atomic lattice of the solid, which is in contrast to the Einstein model. In the Einstein model, solids are treated as independent, non-interacting quantum harmonic oscillators. This model clearly explains the low-temperature dependence of the heat capacity, which is proportional to T3. This is known as Debye T3 law.

Question

Calculate energy available in 5 Kg wind, if the power available at the rotor of a wind turbine is 648 kW, diameter of the rotor, D = 84 m, Air density, ρ = 1.23 kg/m³ and Power Coefficient, C_p = 0.42

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