,:e the Farm Calendar
To Publicize Your Meetings.
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LANDIS &ESBENSHADE
Kirkwood, PA
(717) 786 4158
CLAIR SANER & SON
McAllislerville PA
(717) 463 2234
MARVIN HORST
Lebanon PA
(717) 272-0871
JOSEPH MOYER
Pipersville PA
(215) 766-8675
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Camp Hill PA
(717) 737-4554
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Lititz RD4, PA
Phone: 626-4705
H DANIEL WENGER'
Hamburg PA
(215)488 7674
KENNETH L.SPAHR
Thomasville PA
(717) 225 1064
LANDIS FARMSTEAD
AUTOMATION
Milton PA
(717)437 2375
LEO LANDIS
Millersburg PA
(717) 692-4646
LONGACRE ELECTRIC
Bally PA
(215) 845 2261
ZOOK’S FARM STORE
Honey Brook PA
(215) 273 9 730
A. L. HERR
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312 Park Ave.
Quarryville 786-3521
Soil Warming
Being Studied
Waste heat from electrical
power generating plants
may some day be used to
increase crop production by
warming the soil. The idea is
being explored by scientists
at The Pennsylvania State
University who report that
such a system could increase
production of many crops by
30 to 40 percent.
Fultoii
Grange
Meets
Fulton Grange 66 met
February 10, with Master
Donald Trimble presiding.
Membership Committee
Chairman Richard Holloway
urged members to get ap
plications and try to get new
members.
Norman Wood reported
that State Grange was
putting out a monthly
newsletter concerning state
legislation.
Lecturer Joyce Holloway
announced the winners of the
Junior Grange valentine
contest as follows: Ages 6-10
- Prettiest, Oleta Fantom;
Funniest, Krista Anderson;
Best Verse, Dawn Delong;
Most Original, Lisa Duncan;
Ages 11-14 - Prettiest, Scott
Stauffer; Funniest, Sandy
Galbreath; Best Verse,
Chris McCardell; and Most
Original, Sandy Galbreath.
Mr. and Mrs. Dennis
Buchanan, Young Mameds
Committee Chairmen, in
troduced Mr. Henry Hack
man from the Soil Con
servation Service who
presented slides and spoke
on soil conservation.
As conceived at Penn
State, soil warming is
achieved by circulating hot
water through a buried pipe
network located in soil
irrigated with treated
municipal wastewater
another Penn State in
novation. The circulating hot
water is cooled and returned
to the power plant for reuse.
Involved in the study are
Dr. David R. DeWalle,
associate professor of forest
hydrology, Dr. Daniel D.
Fritton, assistant professor
of soil physics, and Dr.
Louis T. Kardos, professor of
soil physics-all with the
College of Agriculture. The
study was funded through
the Institute for Research on
Land and Water Resources
at Penn State with a grant
from the National Science
Foundation.
For each unit of electrical
energy generated, two units
of waste heat are driven off
and wasted, the Penn Staters
point out. Estimates are that
by 1980 a volume of con
denser cooling water equal
to about one-fifth of the
annual water runnoff in the
U.S. will be needed to
remove this waste heat from
steam electric power plants,
plants. -
The. Penn State study
shows that soil warming
competes with heat
dissipation methods
currently used, such as wet
and dry cooling towers
operated by power plants.
When the soil warming
system becomes reality,
increased crop production
could become a byproduct of
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South Race St.
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Lancaster Farming, Saturday, March 1, V'7b~
waste disposal.
Such a soli warming
system for crop production is
economically feasible, the
scientists point out. The
electrical power needs of a
city of one million people
could supply waste heat for
some 4500 acres of cropland.
The cost would add 2.0
percent to the consumer
electric bill compared with
ocean cooling and 0.9 percent
when compared with the
popular wet-cooling towers.
The scientists say this may
be a small price to pay for
increased food production
sometime in the future. Such
soil warming is intermediate
in cost between the natural
draft wet-cooling towers
which are becoming the
most popular cooling system
for large power plants and
dry-cooling towers used only
occasionally because of their
high cost.
Many beneficial uses of
waste heat have been
proposed in agriculture,
aquaculture, sewage
treatment, and household
heating. Uses in agriculture
include soil warming,
greenhouse heating, and
warmwater irrigation.
The findings are described
in the Winter issue of
“Science in Agriculture,”
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the quarterly magazine of
the Agricultural Experiment
Station at Penn State. By
early March, free copies will
be available from the
Mailing Room, 112
Agricultural Administration
Building, University Park,
Pa. 16802.
An economic systems
analysis of soil warming was
carried out by faculty in the
Department of Civil
Engineering at Penn State.
Construction, operation, and
maintenance costs were
calculated for the conceived
system. Existing soil heat
flow and climatological
measurements and theories
were contributed by College
of Agriculture faculty. A
nuclear power plant
mathematical model was
revised to fit the,analysis by
Penn State faculty in the
Department of Nuclear
Engineering.
College of Agriculture
faculty members will next
investigate actual crop
responses to soil warming on
a one-quarter acre plot of
university land. The work
will also analyze how well
treated municipal
wastewater can be
renovated under heated soil
conditions
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