Subtopic: I.C. engine systems – fuel, cooling, lubrication, ignition, electrical, intake and exhaust
Question Statement:
According to Betz's law, the theoretical maximum power coefficient ($C_p$) that an ideal wind turbine rotor can extract from the kinetic energy of wind is:
Options:
(A) $16/27$ ($59.3\%$)
(B) $8/15$ ($53.3\%$)
(C) $1/2$ ($50.0\%$)
(D) $2/3$ ($66.7\%$)
Answer Key:
A
Step-by-Step Solution & Explanation
Betz's limit establishes that the theoretical maximum aerodynamic power coefficient of any wind rotor is $C_{p,\max} = \frac{16}{27} \approx 0.5926$ ($59.3\%$).