Name the two basic methods or systems used for solar space heating - ANS-Passive
and active solar systems
Why are large thermal masses necessary in a direct gain system - ANS-To help
modulate temperature extremes within the structure
What are five disadvantages of a water storage wall - ANS-Appearance, noise,
evaporation, corrosion, and leaking
List three requirements of a solar greenhouse in order to be efficient in a cold climate -
ANS-Air infiltration reduced to a minimum, thick concrete floors, and double glazing,
fiberglass or plastic used
What are three features that should be present in a good-quality solar collector used for
a warm air solar system - ANS-Airtight box, highly transparent glazing, and sufficient
insulation
Generally, what is the most efficient tilt angle for a solar collector - ANS-50 to 60
degrees
In a warm air system, how is heat from the storage area distributed to the living area? -
ANS-With a blower
Name two concerns to address when considering a warm water solar system -
ANS-Freezing and corrosion
A direct gain system - ANS-Is a type of passive solar system
Indirect gain systems - ANS-Use a large thermal mass located between the sun and
living space to collect and store heat
The vents in a Trombe wall should be closed at night during the heating season to
prevent - ANS-Reverse thermosiphoning
Advantages of an isolated gain system are - ANS-Little interior space needs to be
exposed to the sun, little interior space is required for heat collection devices, and
collected heat is easier to control
, A bank of collectors, a heat storage box and blowers are required in a - ANS-Warm air
solar system
The most used material for warm air absorber plates is - ANS-Aluminum
The size of the heat storage for active solar systems should be - ANS-Sufficiently large
to store enough heat for three days of cloudy weather
The heated water necessary in the warm water system is usually stored in a -
ANS-Large insulated tank usually located in the basement or crawl space
Warm water solar systems heat the air in the living space by - ANS-Liquid to air heat
exchangers such as baseboard convectors
The sun's energy - ANS-Solar radiation
Transfer of heat by moving fluids, such as liquids or gases - ANS-Convection
The flow of heat through and object by the movement of heat from one molecule to
another - ANS-Conduction
Waves of infrared or invisible light that move heat through space - ANS-Radiation
A massive wall colored dark on the outside to absorb heat from the sun - ANS-Trombe
wall
The result of a fluid expanding and rising - ANS-Thermosiphoning
A wall made of water filled containers capable of storing heat - ANS-Water storage wall
A phase change material that changes from a solid to a liquid as it heats up -
ANS-Glauber's salt
A solar greenhouse - ANS-Sun space
A type of absorber plate - ANS-Flat plate collector
List four factors to consider when selecting a site for an earth sheltered dwelling -
ANS-Orientation to sun, wind, topography, soil type, and groundwater level