Flywheel Energy کا حساب کیسے لگائیں
Flywheel Energy کیا ہے؟
Flywheel energy storage uses rotational inertia to store and release kinetic energy. It's used for power smoothing and peak shaving.
فارمولا
Power = dE/dt (rate of energy change)
مرحلہ وار گائیڈ
- 1Calculate: E = 0.5 × I × ω² where I is moment of inertia, ω is angular velocity
- 2Energy stored = change in kinetic energy
- 3Power = dE/dt (rate of energy change)
حل شدہ مثالیں
ان پٹ
Flywheel I=100 kg·m², ω=500 rad/s
نتیجہ
E = 0.5 × 100 × 500² ≈ 12.5 MJ energy stored
Significant storage capacity
عام غلطیاں جن سے بچنا ہے
- ✕Neglecting bearings friction losses
- ✕Over-sizing flywheel (excessive cost and weight)
اکثر پوچھے جانے والے سوالات
Why use flywheels over batteries?
Flywheels handle high power (charge/discharge rate); good for short-duration storage.
What limits flywheel speed?
Material strength; excessive speed causes material failure. Typically limited to 20-60% ultimate stress.
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