Convertion of electrical units into mechanical and thermal units or vice versa
Electrical Engineering ⇒ Topic : Conversion of units of work, power and energy
Convertion of electrical units into mechanical and thermal units or vice versa |
Aahana
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1. Relation between the units of Heat and Mechanical energy. These units are related by joule's constant. According to joules law of electrical heating, the amount of heat produced (H) is directly proportional to the energy expanded :
So, 1 calories = 4.18 Joule. 2. Relation between the units of Electrical and Mechanical energies. 1 kWh = kW x 1 hr = 1000 W x 3600 seconds = 36 x 105 Ws or Joules 1 kWh = 36 x 105J = 36 x 105 Nm 3. Relation between the units of Electrical and Heat energies 1kWh = 36 x 105J
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Prisha
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Convertion of electrical units into mechanical and thermal units or vice versa 1 watt = 1 joule/second = 1 N-m/s 1 kW = 1000 watts or joules/sec or N-m/s 1 H.P. (metric) 735.5 watts
= 1.36 H.P. (metric) 1 calorie = 4.18 joules or watt-seconds 1 kilo calorie = 4180 joules or watt-seconds
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