You can calculate kilowatts from kilojoules and seconds, but you can't convert kilojoules to kilowatts, s为ce kilojoule and kilowatt units represent different quantities.
功率 P 为 千瓦(kW) is equal to the energy E 为 kilojoules (kJ), divided by the time period t 为 seconds (s):
P(kW) = E(kJ) / t(s)
因此
千瓦 = 千焦 / 秒
或
kW = kJ / s
What is the power consumption of an electrical circuit that has energy consumption of 9 kilojoules f或 time duration of 3 seconds
P(kW) = 9kJ / 3s = 3kW