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You currently have an electric hot water tank to produce your domestic hot water, which operates...

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Mechanical Engineering

You currently have an electric hot water tank to produce yourdomestic hot water, which operates at 95% efficiency, and consumes25 GJ of electricity to per year. You get a new hot water tank,this time, it comes with an integrated heat pump water heater withan annual COP of 2. Assume:
- Hot water load evenly distributed every month
- Heat for heat pump is drawn from space around hot watertank, which is located in the house.
- Losses of the original tank were heat losses from the tankto its surrounding air.
- Space heating is required 4 months of the year.
- Cooling is required for 6 months per year.
How much energy does the new hot water tank consume? Byapproximately how much would the space heating and cooling energydemand change with the new tank?

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