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- 1. Electricity consumed by household appliances BY, ALBI THOMAS VARKEY ELECTRICAL ENGG-M.G UNIVERSITY MTech(TM)- UNIVERSITY OF KERALA 9995396795
- 2. TerminologieskW > Kilo WattskWh > Kilo Watts HourPL tube > Philips Lighting tubeCFL > Compact Fluorescent Lamp TRCu.ft > Cubic FeetTR > Tons of RefrigerationHVAC > Heating, Ventilation and Air ConditioningBTU > British Thermal Unit
- 3. How to calculate consumption of electrical energy?(Wattage Ã— Hours Used Per Day) Ã· 1000 = Daily Kilowatt-hour (kWh) 1 kWh=1 UNIT 1 kilowatt (kW) = 1000 Watts
- 4. EXAMPLES (PER DAY USAGE) Question. How much units(kwh) of energy is consumed by a bulb of 60 watts per hour ? =60 WATTSAnswer. For one hour if you are turning on the light, it consumes60 watts, that means it consumes 60/1000=.06 units of energy and ifit is kept â€˜onâ€™ for 12 hours likewise when we are in hurry to reachoffice or college the energy lost for 12 hours is(60*12)/1000=720/1000=.72units
- 5. Power consumed by CFL lamp of 20 watts working for 4 hours? = 20 WATTSAnswer. 20 watts 4 hours=80/1000=.08 units
- 6. What is the difference between CFL and a colloquially called tube light/fluorescent lamp?â€¢ CFL bulbs have an electronic circuit in the base of the bulb. A miniature transformer that produces high voltage enough to ionize the gas in the tube.â€¢ Tube lights are simply connected to the pins at the base. External ballasts must be used to supply the high voltage necessary to start the lamps.
- 7. How much units(kwh) of energy is consumedby a vaccum cleanerof 500 watts working 2 hours? =500 WATTSAnswer. 500watts 2 hours=1000/1000= 1unit
- 8. Energy consumed by a ceiling fan working for 6 hours? =100 WATTSAnswer . 100 watts Ã—6 hours =600/1000 = .6 unit
- 9. Energy consumed by a iron box working for 6 hours? =1100 WATTSAnswer. 1100 watts Ã—6 hours=6600/1000= 6.6 units
- 10. HERE WE GO Personal Computer and Monitor FOR MAKING THIS PRESENTATION,ie ALMOST 3 AND HALF HOURS...TILL NOW. COMPUTER+ MONITOR =120 Watts + 150 Watts =270 WATTSAnswer. 120watts+150watts=270 watts Ã—3.5 hours=945/1000 =.945 unit
- 11. Laptop working for 3 hours = 50 WATTSAnswer. 50watts Ã— 3hours=150/1000= .150 unit
- 12. Laser Printer working for 1 hour? =375 WATTSAnswer. 375watts Ã—1hour=375/1000=.375 units
- 13. Refrigerator working for 2 Â½ hours? = 380 WATTS 1 cubic feet=28.31 liters Refrigerator = 16 cu. ft.Answer. 380 watts 2 Â½ hours=950/1000=.95unit
- 14. Induction cooker of 3.6kw with a load max of 3.2 kw working for 45 minutes at various?â€¢ 20 MIN consumes 600Wattsâ€¢ 10 MIN consumes 1500 Wattsâ€¢ 15 MIN consumes 3.2 kW=3200 WattsAnswer. 600 1/3=200/1000 =.2 units 1500 1/6=250/1000 =.25units 3200 1/4=800/1000 =.8units Total = .2+.25+.8 = 1.25 units
- 15. And our IDIOT BOX (TV) working for 3 hours watching a film? =100 WATTSAnswer .100watts Ã— 3hours=300/1000=.3 unit
- 16. Set top box working for 5 hours? = 50 WATTS MAXIMUMAnswer. 50 watts 5hours=250/1000=.25unit
- 17. Satellite dish working for 4 hours? = 50WATTSAnswer. 50watts 4 hours=200/1000=.2unit
- 18. Microwave Oven of rating 1660 W working for 45 minutes? = 1660 WATTSAnswer . 1660watts 3/4 hours=1245/1000=1.245 units
- 19. Air conditioner rating of 1200 watts working for 2 Â½ hours? =1200 WATTSAnswer. 1200 watts 2 Â½ hours=3000/1000 =3 units
- 20. Washing Machine working for Â¾ hours = 512 WATTSAnswer. 512watts Â¾ hours= 384/1000 =.384 unit
- 21. Pump set of 1.5 hp power working 1 Â½ hours? 1 hp=746 watts 1.5 746 = 1119 WATTSAnswer.1119watts 1 Â½ hours=1678.5/1000=1.678 units
- 22. Cell Phone - recharging for 4 hours for an year? = 4 WATTSAnswer.4watts 4hours 365days=5840/1000 =5.840units/year
- 23. DO YOU KNOW?If you have plugged your mobile charger for 8 hours without switching â€˜off â€˜ what amount of electricity is wasted, that is > (vampire power)Answer . 6.5kWh â‰¥ 6.5 units/year 6.5/365 =.0175units per day
- 24. For more information Log on toâ€¢ http://www.wholesalesolar.com/StartHere/Ho wtoSaveEnergy/PowerTable.htmlâ€¢ http://www.evsolar.com/power.html
- 25. Thank you

how can an induction cooker consume 600W when it works for 20 min

and it consumes 1500W when it works for 10 minutes???