Question

A heat pump supplies 115,000 kJ/h of energy to maintain a house at an ambient temperature of 22 °C. Over a one month period, the heat pump operates for 200 hours to transfer heat from the outside air at 2 °C to inside the house. Answer the following questions and select your answer to two decimal places in the boxes below: a) Determine the maximum COP for this heat pump. b) Calculate the cost of running the heat pump over the month. Assume the unit price of electricity is £0.21 per kWh. c) If the heat pump used the ground with a temperature of 12 °C as the heat source, rather than the outside air, determine the maximum amount of money saved. The maximum COP for the heat pump is The cost of running the heat pump is £ The maximum cost saving is £

          A heat pump supplies 115,000 kJ/h of energy to maintain a house at an ambient temperature of 22 °C. Over a one month period, the heat pump operates for 200 hours to transfer heat from the outside air at 2 °C to inside the house. Answer the following questions and select your answer to two decimal places in the boxes below:
a) Determine the maximum COP for this heat pump.
b) Calculate the cost of running the heat pump over the month. Assume the unit price of electricity is £0.21 per kWh.
c) If the heat pump used the ground with a temperature of 12 °C as the heat source, rather than the outside air, determine the maximum amount of money saved.
The maximum COP for the heat pump is
The cost of running the heat pump is £
The maximum cost saving is £

A heat pump supplies 115,000 kJ/h of energy to maintain a house at an ambient temperature of 22 °C. Over a one month period, the heat pump operates for 200 hours to transfer heat from the outside air at 2 °C to inside the house. Answer the following questions and select your answer to two decimal places in the boxes below:
a) Determine the maximum COP for this heat pump.
b) Calculate the cost of running the heat pump over the month. Assume the unit price of electricity is £0.21 per kWh.
c) If the heat pump used the ground with a temperature of 12 °C as the heat source, rather than the outside air, determine the maximum amount of money saved.
The maximum COP for the heat pump is
The cost of running the heat pump is £
The maximum cost saving is £

Added by Victoria C.

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