Question

Consider a geothermal unit that controls a house temperature by using underground as a heat source or a heat sink. The unit includes which of the following? (5 points)

	A.	A heat pump
	B.	Both A and B
	C.	None of the above
	D.	A heat engine

Answer 1

Option (A) is correct

Explanation:

This unit known as geothermal heat pump that uses underground as a heat source or a heat sink. Key components of this unit includes ground loop (network of pipe buried near shallow ground), a heat pump and air delivery system. A fluid circulates through ground loop to absorb or relenquish heat within ground. in winter heat pump removes heat from fluid and transfer it to the building. This process is reversed in the summer. Hence option A is correct.