Reference no: EM131068194
1. From the information given, figure out how much energy the dishwasher uses, as delivered to the house where it is used, in btu/yr assuming that 6 loads of dishes are washed per week. Make two calculations, one for the case that the dishwasher is run using electricity and the other for the case that it is run using gas.
2. Suppose that a dishwashing cycle takes 1 hour. How much power is the dishwasher using when it is running when it is running with electricity?
3. When running the dishwasher on electrical power at 120 volts, how much current in amps is running through the dishwasher. Will it cause a 20 amp circuit breaker to break the circuit?
4. If the electricity is coming from a gas fired power plant operating at 35% efficiency and if the electrical energy losses in getting the energy from the power plant to the place where it is used to run the dishwasher are 10%, then how much thermal energy (in btu/yr) is produced by burning gas at the power plant, in order to run the dishwasher (at 6 loads per week)? Compare the answer you get to the answer to the second part of part a. above. Which is bigger?
5. If the electricity is coming from a gas fired power plant operating at 35% efficiency and if the electrical energy losses in getting the energy from the power plant to the place where it is used to run the dishwasher are 10%, then how much thermal energy (in btu/yr) is produced by burning gas at the power plant, in order to run the dishwasher (at 6 loads per week)? Compare the answer you get to the answer to the second part of part a. above. Which is bigger?
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