Sait water pond helps dry grain
ARGONNE, 11. A pond of
water that can store enough heat
during the summer to dry a far
mer’s grain crop in the fall was the
subject of a workshop this week at
the Department of Energy’s
Argonne National Laboratory,
near Chicago.
Argonne has developed a system
to remove heat from its ex
perimental salt gradient Solar
pond for use in drying grain,
heating barns and houses or
supplying domestic hot water.
Salt water is the key to the
pond’s ability to collect and store
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PENNSYLVANIA
BURCHFIELDS, INC.
Railroad St., Martinsburg, PA
814-793-2194
ERB 4 HENRY EQUIP., INC.
New Berlinville, PA
215-367-2169
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IUINIM U. ntOO i Anal tlllllr . PEOPLES SALES 1 SERVICE West of Blue Ball, PA on Route 23
Orangeville, PA 815 E. Main St.
717-925-6939 717-463-2735 Annville, PA
717-867-5143
solar energy. Salt concentration
increases with depth, forming
layers that suppress convection
circulation within the pond.
Sunlight penetrates the surface,
warming the lower layers.
Because the lower layers are
heavier than those above them,
they cannot rise, and their heat
remains trapped.
The pond can produce useful
heat day and night, all year round,
even when covered with winter ice.
Peak water temperatures at the
bottom of the solar pond exceed 170
degrees F at the end of summer,
SEE
GRAHAM’S DAIRY SUPPLY
RD 3, Box 382
Greensburg, PA
412-834-3162
1.6. AG SALES
Silverdale, PA
215-257-5136
low winter temperatures are about
100 degrees F. »
The quarter-acre pond is about
12 feet deep. It holds 700,000 gallons
of water and about 700 tons of salt.
The heat removal system
developed by Argonne uses a heat
exchanger to tap the hot water at
the bottom of the pond. Air passes
through the heat exchanger at 8000
cubic-feet-per-minute and is
warmed by the hot water to about
40 degrees above the temperature
of the surrounding air. This
temperature and airflow is suf
ficient for grain drying operations.
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YOUR LOCAL DE LAVAL DEALER
R. 0.1 Box 253.
Centre Hall, PA
814-364-1419
WITHER IMPLEMENT SERVICE
RD3
Shtppensburg, PA
717-532-6139
R. E. SMELTZER
EQUIPMENT CO.
Lancaster Farming, Saturday, October 6,1984—E5
No-till data available
NEWARK, Del. Delware
farmers interested in trying a few
acres of no-till small grain this fall
can get helpful production advice
from the extension fact sheet, “No
till Wheat and Barley in
Delaware.” The fact sheet was
prepared by University of
Delaware extension agronomist
Frank Webb. It contains in
formation on planting equipment,
soil fertility, seeding rate, variety
selection, liming rate and weed
control.
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• Choice of alternating or simultaneous
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PPM or 50 50 with 50 PPM)
• Pre wired for easy low cost installation
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Call for details and a demonstration
Setting the Pace for Performance
lARYLAND
CECIL DAIRY SERVICE
RD 1 - Rt. 274
'A Mi. South Rising Sun. MD
301-658-6923
LEHMAN DAIRY SERVICE
RD 3. Box 150,
Oownsville Pk.
Hagerstown, MO
301-582-1735
For the past five years the
specialist has been evaluating
notillage cultural practices on
small grains at the university’s
Georgetown substation. He says
test results are promising, with no
till yields about the same as those
from conventionally grown wheat
and barley.
To obtain a copy of the no-till
wheat and barley fact sheet,
contact the county extension office
in Newark (451-2506), Dover (736-
► 1448), or Georgetown (856-5250).
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BENNETT MACHINE CO.
1601 South Dupont Blvd
Millford, Del
302-422-4837
Rte 519 N. off Rte 46
P.O. Box 185
Belvidere, NJ
201-475-2185
VAN AKEN DAIRY SUPPLIES
RD 2, Box 177, Heddymgßd
Columbus, NJ
609-298-3344
DELAWARE
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G. HIRAM
BUCHMAN, INC.