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Engineer22

High Grade vs Low Grade Energy

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Engineer22    0

Which is a means of converting high grade energy to low grade energy?

  1. Electricity to ground source heat pump
  2. Electricity for heating water

 

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Engineer22    0

I'm sorry, let me be more clear-

What uses high grade energy to produce low grade energy?

 

  1. Electricity --> ground source heat pump
  2. Electricity for heating water

 

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Sheshtawy    0

Electricity used for heating water is an example of high grade energy used to produce low grade energy. High grade energy is the form of energy that can easily be transformed to another energy form. Electrical energy is considered high grade energy as it can be converted completely into thermal energy (a low grade energy). In example number 2, an electric heater can be used to heat water.

I don't thing electricity used in ground source heat pump is an example of high to low grade energy process as the main source of energy in that example is the ground thermal energy (still a low grade energy), the electricity is only used to circulate the water from the ground as in a typical heat pump.

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