Explain how a geothermal heat pump is able to pump more heat energy into building than it consumes
What will be an ideal response?
The geothermal heat pump operates on a standard refrigeration cycle, except the geothermal heat pump has an extra glycol loop that circulated through the ground to pick up heat from the ground. The ground heat is used to warm the refrigerant in the outside evaporator and the heat is moved to the building space by the refrigerant.
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When using a P-T chart for a compound refrigerant, knowing the saturated suction pressure enables one to find the _____.
a. liquid pressure b. saturation temperature c. bubble point d. subcooling value
What would happen if a hydronic system was installed without an expansion tank?
What will be an ideal response?
____________________ leads are brought out when any wye-connected windings are used in a three-phase transformer.
Fill in the blank(s) with the appropriate word(s).
The deeper that they are placed in the soil, the more rapidly organic compounds such as pesticides are decomposed by the soil microflora
Indicate whether the statement is true or false