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# Electric Power Usage - Research Paper Example

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This paper explores to quantify the amount of energy likely to be consumed in an average household and the ultimate cost thereof. It ultimately compares the amount of the energy used vis…

## Extract of sample"Electric Power Usage"

Download file to see previous pages The table depicts the energy consumption in a week; this will eventually be translated into a year.
Since energy is billed in Kwts per hour, the energy consumption of this household in the last one month, which is consistent with the billing policy that is sent every month, the total power consumption is 750-Kilo watts/hour in this household. Assuming that the trend is uniform and the average of the power consumption in the one month is used to reflect the annual consumption then this will be 9000-Kilo watts/hour in a year. This wattage expressed in duration per second will be; 9000Kwts * 3600 (second in 1 hour) =32400000 joules/ sec. (32.4 Mega joules per second).
In relation to the information above it can be appreciated that the energy consumption per household is quite high and apart from electricity, it is hard to sustain the energy demand more so using other non-renewable energy sources like coal. It is therefore vivid that the amount of coal required to produce the stated energy can be calculated. It is known that the energy released by coal can be calculated in Kilowatts per hour for a defined mass of the coal compound (Stoyke, 2007). This is 6.67Kwts/hr/kg; this cannot be efficiently transferred to usable power since the thermodynamic efficiency of coal to transfer the energy is about 30%. This is about -2.0 Kwts/hr/Kg. thus the energy that is efficiently transferred is 4.7 Kwts/hr/Kg (Meier, 2006). To sustain an annual energy demand in a household, a total of about 1915 Kilograms of coal is required.
In regard of the above table of power consumption, the top five energy consumers in a household comprise of cloth washers, microwave ovens, driers, refrigerator, and dishwashers. This is not the only energy consumption in a household, there are other energy consumptions that do not take place within the household though at ...Download file to see next pagesRead More
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