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[DOC File]College of Engineering and Computer Science | California ...
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For the gas burner, where the efficiency is 38%, we have to provide (3 kW)/(0.38%) = 7.895 kW of energy from the gas. The cost of natural gas, which is $0.60 per therm can be converted to a cost per kWh using the appropriate unit conversion factors: ($0.60/therm)(1 therm/105 Btu)(3412 Btu/kWh) = $0.02047/kWh.
amps to kw calculator

[DOC File]APES Energy Problems - Quia
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E = P x t (rearranged from above). A kilowatt hour is equal to 1 kW delivered continuously for 1 hour (3600 sec). 1 kWh = 1000 J x 3600 sec = 3.6 x 106 J = 3600 kJ. sec. Assume your electric bill showed you used 1355 kWh over a 30-day period. a.) Find the energy used, in kJ, for the 30 day period. 1355 kWh (3600kJ/1 kWh)= 4,878,000 kJ. b.)
how to calculate kwh usage

[DOC File]Load Shape Mapping
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Demand Scale Factor Col T Not a user input. Indicates “kWh” if capacity savings are calculated using annual kWh reductions, or “kW” if capacity savings are calculated using summer peak kW reductions. User entered kW savings per unit Col U Summer peak period kW reduction attributable to installation one unit of the measure.
kw to amps conversion

[DOC File]Even More Energy Problems - Bobula - ABOUT
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Estimate the energy consumption for refrigeration for both types of refrigerators in units of kWh/yr and convert your answer into kcal/yr (# kWh/yr x 860 kcal/kWh = kcal/yr). 2. For a total year’s use, you run the air conditioner for a total of 137 days, 24 hours per day, and use 7.25 kWh per hour.
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[DOC File]Electricity and Carbon Dioxide
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For example, if a 120 watt (0.120 kw) light bulb is used for 10 hours, the electric company will charge you for 1.2 kwh of electricity (0.120 kw * 10 hrs = 1.2 kwh). Activity: Obtain a Kill-a-watt energy meter from your teacher. Plug a device into the meter and measure the amps and kilowatts (kw…
kw to kwh yr

[DOC File]CHAPTER 14
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Transferring 5 kWh of heat to an electric resistance wire and producing 5 kWh of electricity. 7-3C. An electric resistance heater which consumes 5 kWh of electricity and supplies 6 kWh of heat to a room. 7-4C. Transferring 5 kWh of heat to an electric resistance wire and producing 6 kWh of electricity. 7-5C
kilowatt hours to kw

[DOC File]Energy is one of the easiest areas of Environmental ...
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Convert this energy to kWh and compare the cost of electrical energy derived from batteries to that of standard "grid-based" electricity. Assume that the battery costs $1.00 and that electricity from the power company is available at $0.10/kWh. Answer: 4.5 wh/1000wh/kWh= .0045kWh for a dollar
monthly kwh to kw

How to convert kwh to kw