A2o—Lancaster Farming, Saturday, May 2,1981
Three types of solar collection systems are
tested in grain-drying research at the U.S.
Grain Marketing Research Center, Manhattan,
Kan. A flat plate collector (center foreground)
.provides heat for the two drying and storage
bins in the right foreground. The triangle
shaped unit on the left is made of fiberglass
and contains 30 tons of rock to store heat. The
rocks are painted black to aid heat collection.
In both collectors, heated air is moved into the
grain-drying bins by fans. The double-wall, air
inflated plastic tube collector (upper left) is
100 feet long and has a capacity of 1700 cubic
feet per minute. Heated air is moved through
the tube by a 3/4 hp electric motor. The drying
ability of this low profile system is being
compared with that of larger units previously
tested.
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USD A solar research!
Researchers at the South Central Poultry
Research Laboratory, Mississippi State, Miss.,
have installed two types of solar collectors on a
poultry house. The collector in the foreground
heats the ventilation air used in the house
during the daylight hours. The other collector
heats water that is stored for heating the
house at night. A researcher checks the
pyranometer an instrument that measures
solar radiation.
with 20'x13' D/S Door
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