The Nissan Leaf is an all-electric car powered by a 107-hp electric motor and a
ID: 1536524 • Letter: T
Question
The Nissan Leaf is an all-electric car powered by a 107-hp electric motor and a lithium-ion battery that stores 24 kWh and produces 394 V at its terminals when fully charged. The Leaf's battery can charge at the rate of 3.3 kW from a standard 120-V power outlet, at 6.6 kW from a 240-V outlet, and at 44 kW using a special 480-V charger. The Leaf's fuel economy is 3.38 miles per kWh, the equivalent of 114 miles per gallon in a gasoline-powered car. Find (a) the range of the Leaf, assuming the battery can be fully depleted, (b) the charging time for each mode, and (c) the current delivered by the fully charged battery when the motor is operating at full power.
Explanation / Answer
(A) the battery stores 24 kWh when fully charged.
Economy for the Nissan leaf is 3.38 miles per kWh
Range of the Leaf is
d = 3.38 * 24
= 81.12 mi
Thus, the range of the leaf assuming the battery can be fully depleted is 81.12 mi.
(B) The charging time for each modes
time (t) = energy(E)/power(p)
the charging time from a standard 120-V
t1 = 24 kWh/3.3 kW
= 7.27 h
the charging time from a standard 240-V
t2 = 24 kWh/6.6 kW
= 3.64 h
the charging time from a standard 480-V
t3 = 24 kWh/44 kW
= 0.545 h
(C)the current delivered by the fully charged battery when the motor is operating at full power.
watt hours = Battery voltage * Amp hours
24*10^3 Wh = 394 v * I Ah
I = 6.091 Amp h
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.