Page 92 - Analysis and Design of Energy Geostructures

62 Analysis and Design of Energy Geostructures

Questions and problems
Statements
a. What are the two fundamental roles of energy geostructures? What is the main
difference between energy and conventional geostructures?
b. What are the purposes of the heat exchange that can be established with energy
geostructures?
c. Describe the technology of energy geostructures.
d. List typical pipe layouts for energy piles.
e. What is a key difference between pipe layouts applicable to energy tunnels?
f. In designing the pipe layout for energy tunnels, energy walls and other energy
geostructures characterised by a significant heat exchange surface, a key aspect is
to obtain the lowest heat exchange surface for the selected energy geostructure
portion at the highest pressure drop and investment:
i. True
ii. False
g. Thermal insulation layers can be foreseen in energy tunnel, wall and slab applica-
tions to prevent heat exchange with either the airside or the groundside:
i. True
ii. False
h. What are the purposes of the heat exchange that can be established with energy
geostructures?
i. Heating and cooling of superstructures
ii. Prevent the icing of pavements and decks
iii. Production of hot water
iv. Production of electricity
i. List and describe the purpose of two possible applications of energy piles.
j. Describe the components of ground source heat pump systems.
k. How many circuits characterise the ground source heat pump system? To which
circuit do energy geostructures belong?
i. Two circuits. The primary
ii. Three circuits. The primary
iii. Two circuits. The secondary
l. The purpose of using a heat pump to heat a built environment through energy
geostructures is:
i. To enhance the heat input that can be extracted from the ground
ii. To diminish the heat input that can be extracted from the ground
iii. To equilibrate the heat input that can be extracted from the ground
iv. None of the above