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A temporary structure loses 60 kWh of energy each day. If modifications to the structure are made so that the energy flux decreases by a factor of 0.5 and the insulated area increases by a factor of 2, what will the new energy loss per day be

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michell96

The new energy loss per day would be 15 kWh.

Loss of energy occurs as energy in a system moves from inside the system to outside it. This can occur in terms of temperature, movement, etc.

Fortunately, energy loss can be reduced to make the system more efficient, this is possible through strategies such as increasing insulated areas and controlling energy flux.

In the system presented we know the previous energy loss was 60kWh. But two strategies have been used to decrease it:

  • Control of energy flux = Decreases loss by 0.5
  • Insulated area = Decreases loss by a factor of 2

  • 60kWh / 2 = 30kWh
  • 30kWh x 0.5 = 15kWh

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